M40™ Internet Router Hardware Guide Juniper Networks, Inc. 1194 North Mathilda Avenue Sunnyvale, CA 94089 USA 408-745-2000 www.juniper.
This product includes the Envoy SNMP Engine, developed by Epilogue Technology, an Integrated Systems Company. Copyright © 1986–1997, Epilogue Technology Corporation. All rights reserved. This program and its documentation were developed at private expense, and no part of them is in the public domain. This product includes memory allocation software developed by Mark Moraes, copyright © 1988, 1989, 1993, University of Toronto.
Table of Contents About This Manual Objectives ........................................................................................................... xvii Audience............................................................................................................. xvii Document Organization..................................................................................... xviii List of Technical Publications .............................................................................
Craft Interface ......................................................................................................17 FPC LEDs and Offline Button.........................................................................18 Alarm Relay Contacts, LEDs, and Cutoff Button.............................................18 LCD ...............................................................................................................19 Routing Engine LEDs and Interface Ports .....................................
Part 2 Initial Installation Chapter 5 the Site .....................................................................................................39 Prepare Rack Requirements...............................................................................................39 Rack Size and Strength ..................................................................................40 Spacing of Mounting Holes ............................................................................
Grounded Equipment Warning...............................................................68 In Case of Electrical Accident .................................................................68 Backplane Energy Hazard Warning ........................................................68 Multiple Power Supplies Disconnection Warning....................................69 Power Disconnection Warning ...............................................................70 TN and IT Power Warning.............................
Remove the FPCs .................................................................................105 Remove the SCB ..................................................................................106 Remove the Air Filter ..........................................................................107 Remove the Lower Impeller Assembly .................................................108 Install the Chassis into the Rack .................................................................
Disconnect and Connect DC Power ....................................................................147 Disconnect DC Power from the Router........................................................147 Connect DC Power to the Router.................................................................149 Chapter 11and Replace Cooling System Components....................153 Maintain Tools and Parts Required....................................................................................
Replace the Routing Engine ................................................................................176 Remove the Routing Engine ........................................................................177 Install the Routing Engine............................................................................178 Replace the LS-120 Drive ....................................................................................180 Chapter 14and Replace Cables and Connectors .................................
Chapter 18 the Packet Forwarding Engine Components ...... 201 Troubleshoot Troubleshoot FPCs..............................................................................................201 Troubleshoot PICs...............................................................................................202 Troubleshoot the SCB .........................................................................................202 Part 5 Appendixes Appendix A Cable Connectors and Pinouts..................................
List of Figures List of Figures Figure 1: Figure 2: Figure 3: Figure 4: Figure 5: Figure 6: Figure 7: Figure 8: Figure 9: Figure 10: Figure 11: Figure 12: Figure 13: Figure 14: Figure 15: Figure 16: Figure 17: Figure 18: Figure 19: Figure 20: Figure 21: Figure 22: Figure 23: Figure 24: Figure 25: Figure 26: Figure 27: Figure 28: Figure 29: Figure 30: Figure 31: Figure 32: Figure 33: Figure 34: Figure 35: Figure 36: Figure 37: Figure 38: Figure 39: Figure 40: Figure 41: Figure 42: Figure 43: Figure 44: Fron
Figure 45: Reinstall the Routing Engine Housing ...............................................118 Figure 46: Reinstall a Power Supply...................................................................119 Figure 47: Routing Engine Interface Ports on the Craft Interface .......................119 Figure 48: Routing Engine Ethernet Cable Connector ........................................120 Figure 49: Console and Auxiliary Serial Port Connector.....................................
Figure 101:Routing Engine 600 Serial Number ID Label .....................................219 Figure 102:Serial Number Label on the System Control Board ...........................
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List of Tables List of Tables Table 1: Table 2: Table 3: Table 4: Table 5: Table 6: Table 7: Table 8: Table 9: Table 10: Table 11: Table 12: Table 13: Table 14: Table 15: Table 16: Table 17: Table 18: Table 19: Table 20: Table 21: Table 22: Table 23: Table 24: Table 25: Table 26: Table 27: Table 28: Table 29: Table 30: Juniper Networks Technical Documentation .................................... xviii Field-Replaceable Units.........................................................................
List of Tables xvi M40 Internet Router Hardware Guide
About This Manual This chapter provides a high-level overview of the M40 Internet Router Hardware Guide: Objectives on page xvii Audience on page xvii Document Organization on page xviii List of Technical Publications on page xviii Documentation Conventions on page xx Contact Juniper Networks on page xx Documentation Feedback on page xxi Objectives This manual describes hardware installation and basic troubleshooting procedures for the Juniper Networks M40 Internet router.
Document Organization Document Organization This manual is divided into several parts: Preface, “About This Manual” (this chapter), provides a brief description of the contents and organization of this manual and describes how to obtain technical support. Part 1, “Product Overview,” provides an overview of the router, describing its hardware components, the JUNOS Internet software, and the system architecture.
List of Technical Publications Book Description Routing and Routing Protocols Provides an overview of routing concepts and describes how to configure routing, routing instances, and unicast routing protocols. Services Interfaces Provides an overview of the services interfaces functions of the JUNOS software and describes how to configure the services interfaces on the router.
Documentation Conventions Documentation Conventions This manual uses the following text conventions: Router and router component labels are shown in a sans serif font. In the following example, MANAGEMENT ETHERNET is the label for the Ethernet management port on the router: The 10/100-Mbps Ethernet RJ-45 connector is used for out-of-band management of the router and is labeled MANAGEMENT ETHERNET.
Documentation Feedback Documentation Feedback We are always interested in hearing from our customers. Please let us know what you like and do not like about the product documentation, and let us know of any suggestions you have for improving the documentation. Also, let us know if you find any mistakes in the documentation. Send your feedback and comments to techpubs-comments@juniper.net.
Documentation Feedback xxii M40 Internet Router Hardware Guide
Part 1 Product Overview System Overview on page 3 Hardware Component Overview on page 7 JUNOS Internet Software Overview on page 25 System Architecture Overview on page 31 1
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Chapter 1 System Overview This chapter provides an overview of the M40 Internet router, discussing the following topics: System Description on page 3 Field-Replaceable Units (FRUs) on page 4 Component Redundancy on page 4 Safety Requirements, Warnings, and Guidelines on page 5 System Specifications on page 5 System Description The M40 Internet router is a complete routing system that provides high-speed interfaces for large networks and network applications, such as those supported by Internet ba
Field-Replaceable Units (FRUs) Field-Replaceable Units (FRUs) Field-replaceable units (FRUs) are router components that can be replaced at the customer site. Replacing FRUs requires minimal router downtime. There are three types of FRUs: Hot-removable and hot-insertable FRUs—You can remove and replace these components without powering down the router or disrupting the routing functions.
Safety Requirements, Warnings, and Guidelines Safety Requirements, Warnings, and Guidelines To avoid harm to yourself or the router as you install and maintain it, you need to follow the guidelines for working with and near electrical equipment, as well as the safety procedures for working with Internet routers. For a discussion of how to make the installation site a safe environment, see “Prepare the Site” on page 39.
System Specifications 6 M40 Internet Router Hardware Guide
Chapter 2 Hardware Component Overview This chapter provides an overview of the hardware components on the M40 Internet router: Chassis on page 8 Packet Forwarding Engine on page 9 Backplane on page 10 Physical Interface Cards (PICs) on page 10 Flexible PIC Concentrators (FPCs) on page 11 System Control Board (SCB) on page 13 Routing Engine on page 15 Craft Interface on page 17 Power Supplies on page 20 Cooling System on page 23 Cable Management System on page 24 Hardware Compo
Chassis Chassis The router chassis is a rigid sheet metal structure that houses all the other router hardware components (see Figure 1 and Figure 2). The chassis is 19 in. (48 cm) wide and 23.5 in. (60 cm) deep. The chassis height of 35 in. (89 cm) enables stacked installation of two M40 routers in a single floor-to-ceiling rack. The two front- or center-mounting ears (one on each side) enable installation into either a front-mount or a center-mount rack.
Packet Forwarding Engine Figure 2: Rear View of Chassis Front rack-mounting ear Center rack-mounting ear Upper impeller assembly Fan tray Routing Engine housing LS-120 drive Power supply A Power supply B 1001 ESD point Packet Forwarding Engine The Packet Forwarding Engine is a multicomponent system that uses application-specific integrated circuits (ASICs) to perform Layer 2 and Layer 3 packet switching, route lookups, and packet forwarding.
Packet Forwarding Engine Backplane The backplane is a panel that forms the back of the FPC card cage (see Figure 3). The SCB and all the FPCs install into the backplane from the front of the chassis. The backplane contains a temperature sensor and is cooled by three fans operating in unison. It also contains an EEPROM that stores the serial number and revision level of the backplane.
Packet Forwarding Engine A regular PIC is hot-removable and hot-insertable in the sense that its absence does not disrupt routing functions; however, you must completely remove its host FPC from the chassis before removing the PIC, which affects all PICs on the FPC. For replacement instructions, see “Replace a PIC” on page 167.
Packet Forwarding Engine The PICs that install on both types of FPC are also hot-removable and hot-insertable. For more information, see “Physical Interface Cards (PICs)” on page 10. Figure 4: FPC Installed in Slot FPC7 STATUS RX TX 7 1059 LINE Y RX ACTIVIT FPC Components Each FPC contains the following components: FPC card carrier—Houses the other FPC components. I/O Manager ASIC—Parses Layer 2 and Layer 3 data and performs encapsulation and segmentation.
Packet Forwarding Engine System Control Board (SCB) The System Control Board (SCB) performs route lookup, filtering, and switching on incoming data packets, then directs outbound packets to the appropriate FPC for transmission to the network. It occupies the center slot of the card cage, installing into the backplane from the front of the chassis (see Figure 1). The SCB is hot-pluggable, as described in “Field-Replaceable Units (FRUs)” on page 4.
Packet Forwarding Engine 19.44-MHz stratum 3 reference clock—Generates clock signal for SONET/SDH PICs. I2C controller—Monitors the status of router components. Debug port—Connects the SCB to a laptop or other monitoring device through an RS-232 (EIA-232) serial cable. It uses a DB-25 connector. Four LEDs—Indicate SCB status. There are two green ones labeled ACTIVE and RUN, and two amber ones labeled STAT1 and STAT2. Table 4 describes the LED states.
Routing Engine Table 4: States for SCB LEDs Label Color State Description ACTIVE Green Flashing (pulsed with out-time proportional to traffic) I/O interrupts are occurring. RUN Green Blinking SCB processor is running. Normally, the blinking is faint and becomes bright only when the SCB is processing many exceptions. STAT1 Amber Flashing Internal diagnostics are running. STAT2 Routing Engine The Routing Engine is an Intel-based PCI platform that runs JUNOS Internet software.
Routing Engine LED—Indicates disk activity for the internal IDE interface. It does not necessarily indicate routing-related activity. The LEDs that report Routing Engine status are on the craft interface rather than the Routing Engine faceplate. See “Routing Engine LEDs and Interface Ports” on page 19. Reset button—Reboots the Routing Engine when pressed. Extractor clips—Control the locking system that secures the Routing Engine in the chassis.
Craft Interface Craft Interface The craft interface provides status and troubleshooting information at a glance and has buttons for deactivating alarms and preparing FPCs for removal. The craft interface is located on the front of the chassis below the FPC card cage, as shown in Figure 1. It includes the elements shown in Figure 7.
Craft Interface FPC LEDs and Offline Button Each of the eight FPC slots in the router has two LEDs and an offline button located directly below it on the craft interface, as shown in Figure 7. The green LED labeled OK and red LED labeled FAIL indicate FPC status, as described in Table 5. The offline button, labeled with the FPC slot number (for example, 4), prepares the FPC for removal from the router when pressed. Press and hold the button for about 5 seconds, until the FAIL LED lights.
Craft Interface Table 6 describes the alarm LEDs and alarm cutoff button in more detail. Table 6: Alarm LEDs and Alarm Cutoff Button Shape State Description Red Color On steadily Critical alarm LED—Indicates a critical condition that can cause the router to stop functioning. Possible causes include component removal, failure, or overheating.
Power Supplies The interface ports with the indicated label function as follows: MANAGEMENT ETHERNET—Connects the Routing Engine through an Ethernet connection to a management LAN (or any other device that plugs into an Ethernet connection) for out-of-band management. The port uses an autosensing RJ-45 connector to support both 10- and 100-Mbps connections. CONSOLE—Connects the Routing Engine to a system console through an RS-232 (EIA-232) serial cable.
Power Supplies For information about the cables required for each type of power supply, see “Power System Requirements and Specifications” on page 44. See the following sections for further information about the power supplies: AC Power Supply on page 21 DC Power Supply on page 22 Power Supply LEDs on page 22 AC Power Supply An AC-powered router has two load-sharing AC power supplies, located at the bottom rear of the chassis, as shown in Figure 2.
Power Supplies DC Power Supply A DC-powered router has two load-sharing DC power supplies, located at the bottom rear of the chassis, as shown in Figure 2. Each power supply has an internal circuit breaker. Figure 9 shows the power supply and Table 9 lists electrical specifications. For information about the LEDs on the power supply, see “Power Supply LEDs” on page 22.
Cooling System Cooling System The cooling system consists of separate subsystems (sets of fans and impellers) that draw room air into the chassis to keep its internal temperature below a maximum acceptable level. When the temperature is below the maximum, the fans and impellers function at less than full speed.
Cable Management System Airflow through the Chassis Figure 10 shows airflow through the chassis and the location of the cooling subsystems.
Chapter 3 JUNOS Internet Software Overview The JUNOS Internet software is especially designed for the large production networks typically supported by Internet Service Providers (ISPs). It incorporates Internet Protocol (IP) routing software and software for management of interfaces, networks, and the router chassis. The JUNOS Internet software runs on the Routing Engine.
Routing Engine Software Components Routing Engine Software Components The Routing Engine software consists of several software processes that control router functions and a kernel that coordinates communication among the processes, as described in the following sections: Routing Protocol Process on page 26 Interface Process on page 29 SNMP and MIB II Processes on page 29 Management Process on page 29 Routing Engine Kernel on page 29 Routing Protocol Process The JUNOS software routing protocol pr
Routing Engine Software Components IS-IS—Intermediate System-to-Intermediate System is an interior gateway protocol (IGP) for IP networks that uses the shortest-path-first algorithm (SPF algorithm, also called the Dijkstra algorithm) to determine routes. OSPF—Open Shortest Path First, Version 2, is an IGP developed for IP networks by the Internet Engineering Task Force (IETF). OSPF is a link-state protocol that makes routing decisions based on the SPF algorithm.
Routing Engine Software Components Routing and Forwarding Tables The primary function of the JUNOS routing protocol process is maintaining routing tables and using the information in them to determine active routes to network destinations. It copies information about the active routes into the Routing Engine’s forwarding table, which the JUNOS kernel copies to the Packet Forwarding Engine.
Routing Engine Software Components Routing policy enables you to control (filter) which routes are imported into the routing table and which routes are exported from the routing table. Routing policy also allows you to set the information associated with a route as it is being imported into or exported from the routing table.
Tools for Accessing and Configuring the Software Tools for Accessing and Configuring the Software The JUNOS CLI is the primary tool for accessing and controlling the JUNOS Internet software. You use it when accessing the router from the console or through a remote network connection. (For information about connecting a console or other management device to the router, see “Routing Engine LEDs and Interface Ports” on page 19.
Chapter 4 System Architecture Overview The router architecture consists of two major components: Packet Forwarding Engine—Performs Layer 2 and Layer 3 packet switching, route lookups, and packet forwarding. Routing Engine—Provides Layer 3 routing services and network management. The Packet Forwarding Engine and the Routing Engine perform independently but communicate constantly through a 100-Mbps internal link.
Packet Forwarding Engine Architecture Packet Forwarding Engine Architecture The Packet Forwarding Engine performs Layer 2 and Layer 3 packet switching. It can forward up to 40 million packets per second for all packet sizes, which exceeds the line speed of eight OC-48/STM-16 lines. The aggregate throughput for the router is 40 gigabits per second (Gbps) simplex or 2.5 Gbps per FPC installed in the system. The Packet Forwarding Engine is implemented in application-specific integrated circuits (ASICs).
Routing Engine Architecture Data Flow through the Packet Forwarding Engine Use of ASICs promotes efficient movement of data packets through the system. Packets flow through the Packet Forwarding Engine in the following sequence (see Figure 12): 1. Packets arrive at an incoming PIC interface. 2. The PIC passes the packets to the FPC, where the I/O Manager ASIC processes the packet headers, divides the packets into 64-byte data cells, and passes the cells to the backplane. 3.
Routing Engine Architecture Figure 13: Routing Engine Architecture JUNOS System management processes Routing protocols Control functions Kernel System processes Operating system 1164 Intel-based PCI platform Routing Engine Functions The Routing Engine handles all routing protocol processes, as well as the software processes that control the router’s interfaces, the chassis components, system management, and user access to the router.
Routing Engine Architecture Storage and change management—Configuration files, system images, and microcode can be held and maintained in primary and secondary storage systems, permitting local or remote upgrades. Monitoring efficiency and flexibility—The router supports functions such as alarm handling and packet counting on every port, without degrading packet-forwarding performance. The Routing Engine constructs and maintains one or more routing tables.
Routing Engine Architecture 36 M40 Internet Router Hardware Guide
Part 2 Initial Installation Prepare the Site on page 39 Regulatory Compliance and Safety Information on page 55 Prepare to Install the Router on page 89 Install the Router and Configure Software on page 97 37
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Chapter 5 Prepare the Site This chapter describes how to prepare your site so that you can install a router, discussing the following topics: Rack Requirements on page 39 Clearance Requirements for Airflow and Hardware Maintenance on page 42 Site Environmental Requirements on page 43 Fire Safety Requirements on page 43 Power System Requirements and Specifications on page 44 Site Electrical Wiring and Cable Guidelines on page 49 Fiber-Optic and Network Cable Guidelines on page 49 Routing Engi
Rack Requirements Figure 15: Typical Center-Mount Rack 19 in. (48.3 cm) Mounting rails 7 ft (2.13 m) 1011 Floor bolts Rack Size and Strength The router is designed for installation in a rack that complies with either the following standards: A 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association (http://www.eia.org).
Rack Requirements The rack rails must be spaced widely enough to accommodate the router chassis’s external dimensions: 35 in. (89 cm) high, 23.5 in. (60 cm) deep, and 17.5 in. (44.5 cm) wide. The outer edges of the front- and center-mounting ears extend the width to 19 in. (48.3 cm). The spacing of rails and adjacent racks must also allow for the clearances around the router and rack that are specified in “Clearance Requirements for Airflow and Hardware Maintenance” on page 42.
Clearance Requirements for Airflow and Hardware Maintenance Clearance Requirements for Airflow and Hardware Maintenance When planning the installation site, you need to allow sufficient clearance around the rack (see Figure 16): For the cooling system to function properly, the airflow around the chassis must be unrestricted. Allowing at least 6 in. (15.2 cm) of clearance between each side of the chassis and adjacent racks or equipment is recommended.
Site Environmental Requirements Site Environmental Requirements Table 17 specifies the environmental conditions required for normal router operation. In addition, the site should be as dust-free as possible. Dust can clog the air filter, reducing cooling system efficiency. Check the air filter under the cable management system and the covers on all cooling subsystems frequently, cleaning them as necessary. For more information, see “Maintain and Replace Cooling System Components” on page 153.
Power System Requirements and Specifications Fire Suppression Equipment Type C fire extinguishers, which use noncorrosive fire retardants such as carbon dioxide (CO2) and Halotron™, are most effective for suppressing electrical fires. Type C fire extinguishers displace the oxygen from the point of combustion to eliminate the fire.
Power System Requirements and Specifications Power Supply Load Sharing, Redundancy, and Replacement When two power supplies are installed, they are redundant, sharing the electrical load equally if both supplies are operational. If one power supply stops functioning for any reason, the remaining power supply instantly begins providing all the power the router needs for normal functioning, and can provide full power indefinitely.
Power System Requirements and Specifications Table 12 lists specifications for AC power cords and Figure 18 shows the types of plugs used in different regions.
Power System Requirements and Specifications Table 13 summarizes the specifications for the cables that you must supply for connecting to the power supply terminal studs and grounding studs. Table 13: DC Power and Grounding Cable Specifications Cable Type Quantity and Specification Maximum Equal Length Power cables Four 6-AWG (13.3 mm2) wire cables None Grounding cable 2 One 6-AWG (13.3 mm ) high-strand-count wire cable None For field-wiring connections, use copper conductors only.
Power System Requirements and Specifications For complete instructions, see “Connect Power to a DC-Powered Router” on page 123. Do not substitute a metric nut driver or wrench for the 7/16-in. nut driver or wrench needed to tighten and loosen the nuts on the terminal studs. A tool that does not fit the nuts exactly can damage them. If a 7/16-in. tool is not available, use pliers or an adjustable wrench. System Power Requirements Table 14 lists the power requirements for the individual hardware components.
Site Electrical Wiring and Cable Guidelines Site Electrical Wiring and Cable Guidelines When planning the electrical wiring and cabling at your site, consider the factors discussed in the following sections. Distance Limitations for Signaling Improperly installed wires can emit radio interference. In addition, the potential for damage from lightning strikes increases if wires exceed recommended distances, or if wires pass between buildings.
Fiber-Optic and Network Cable Guidelines Multimode and Single-Mode Fiber Multimode fiber is large enough in diameter to allow rays of light to reflect internally (bounce off the walls of the fiber). Interfaces with multimode optics typically use LEDs as light sources. LEDs are not coherent sources, however. They spray varying wavelengths of light into the multimode fiber, which reflects the light at different angles. Light rays travel in jagged lines through a multimode fiber, causing signal dispersion.
Fiber-Optic and Network Cable Guidelines When chromatic dispersion is at the maximum allowed, its effect can be considered as a power penalty in the power budget. The optical power budget must allow for the sum of component attenuation, power penalties (including those from dispersion), and a safety margin for unexpected losses. For more information calculating the power budget, see “Power Budget Calculation” on page 51.
Fiber-Optic and Network Cable Guidelines Table 16 lists the estimated amount of loss for factors that cause link loss. Table 16: Estimating Link Loss Link-Loss Factor Estimated Link-Loss Value Higher-order mode losses Single-mode—None Multimode—0.5 dB Modal and chromatic dispersion Single-mode—None Multimode—None, if product of bandwidth and distance is less than 500 MHz–km Connector 0.5 dB Splice 0.5 dB Fiber attenuation Single-mode—0.
Routing Engine Interface Cable and Wire Specifications Attenuate to Prevent Saturation at SONET/SDH PICs SONET/SDH interfaces in the different reach classes—short reach (SR), intermediate reach (IR), and long reach (LR)—generate different output power levels and tolerate different input power levels. Interfaces that have a longer reach can transmit enough power to saturate the receivers on PICs that have a shorter reach.
Site Preparation Checklist Site Preparation Checklist The checklist in Table 18 summarizes the tasks you need to perform when preparing a site for router installation. Table 18: Site Preparation Checklist Item or Task Verify that environmental factors such as temperature and humidity do not exceed router tolerances. Measure distance between external power sources and router installation site. Select the type of rack. Plan rack location, including required space clearances.
Chapter 6 Regulatory Compliance and Safety Information To install and use the router safely, follow proper safety procedures.
Definition of Safety Warning Levels This symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken.
Safety Guidelines and Warnings Safety Guidelines and Warnings This section provides the safety guidelines and warnings for installing, operating, and maintaining the router: General Safety Guidelines and Warnings on page 57 Electrical Safety Guidelines and Warnings on page 60 Installation Safety Guidelines and Warnings on page 71 Laser and LED Safety Guidelines and Warnings on page 76 Maintenance and Operational Safety Guidelines and Warnings on page 79 General Safety Guidelines and Warnings The
Safety Guidelines and Warnings Avoid spilling liquid onto the router chassis or onto any router component. Such an action could cause electrical shock or damage the router. Avoid touching uninsulated electrical wires or terminals that have not been disconnected from their power source. Such an action could cause electrical shock.
Safety Guidelines and Warnings Restricted Access Area Warning The router is intended for installation in restricted access areas. A restricted access area is an area to which access can be gained only by service personnel through the use of a special tool, lock and key, or other means of security, and which is controlled by the authority responsible for the location. Waarschuwing Dit toestel is bedoeld voor installatie op plaatsen met beperkte toegang.
Safety Guidelines and Warnings Electrical Safety Guidelines and Warnings When working on equipment powered by electricity, follow the guidelines described in the following sections: General Electrical Safety Guidelines on page 60 AC Power Electrical Safety Guidelines on page 61 DC Power Electrical Safety Guidelines on page 61 Copper Conductors Warning on page 63 DC Power Disconnection Warning on page 64 DC Power Grounding Requirements and Warning on page 65 DC Power Wiring Sequence Warning on
Safety Guidelines and Warnings Carefully look for possible hazards in your work area, such as moist floors, ungrounded power extension cords, and missing safety grounds. Operate the router within marked electrical ratings and product usage instructions. For the router and peripheral equipment to function safely and correctly, use the cables and connectors specified for the attached peripheral equipment, and make certain they are in good condition.
Safety Guidelines and Warnings You must connect only to a DC power source for which the output complies with the safety extra low-voltage (SELV) requirements of UL 1950, CSA C22.2 No. 950-95, EN 60950, and IEC 60950 to a DC-input terminal block. A DC-powered router that is equipped with a DC terminal block is intended only for installation in a restricted access location.
Safety Guidelines and Warnings Copper Conductors Warning Use copper conductors only. Waarschuwing Gebruik alleen koperen geleiders. Varoitus Käytä vain kuparijohtimia. Attention Utilisez uniquement des conducteurs en cuivre. Warnung Verwenden Sie ausschließlich Kupferleiter. Avvertenza Usate unicamente dei conduttori di rame. Advarsel Bruk bare kobberledninger. Aviso Utilize apenas fios condutores de cobre. ¡Advertencia! Emplee sólo conductores de cobre. Varning! Använd endast ledare av koppar.
Safety Guidelines and Warnings DC Power Disconnection Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position.
Safety Guidelines and Warnings DC Power Grounding Requirements and Warning An insulated grounding conductor that is identical in size to the grounded and ungrounded branch circuit supply conductors, but is identifiable by green and yellow stripes, is installed as part of the branch circuit that supplies the unit. The grounding conductor is a separately derived system at the supply transformer or motor generator set. For further information, see “DC Power and Grounding Cable Specifications” on page 46.
Safety Guidelines and Warnings DC Power Wiring Sequence Warning Wire the DC power supply using the appropriate lugs. When connecting power, the proper wiring sequence is ground to ground, +RTN to +RTN, then -48 V to -48 V. When disconnecting power, the proper wiring sequence is -48 V to -48 V, +RTN to +RTN, then ground to ground. Note that the ground wire should always be connected first and disconnected last.
Safety Guidelines and Warnings DC Power Wiring Terminations Warning When stranded wiring is required, use approved wiring terminations, such as closed-loop or spade-type with upturned lugs. These terminations should be the appropriate size for the wires and should clamp both the insulation and conductor.
Safety Guidelines and Warnings Grounded Equipment Warning The router is intended to be grounded. Ensure that the router is connected to earth ground during normal use. Waarschuwing Deze apparatuur hoort geaard te worden Zorg dat de host-computer tijdens normaal gebruik met aarde is verbonden. Varoitus Tämä laitteisto on tarkoitettu maadoitettavaksi. Varmista, että isäntälaite on yhdistetty maahan normaalikäytön aikana. Attention Cet équipement doit être relié à la terre.
Safety Guidelines and Warnings Multiple Power Supplies Disconnection Warning The router has more than one power supply connection. All connections must be removed completely to remove power from the unit completely. Waarschuwing Deze eenheid heeft meer dan één stroomtoevoerverbinding; alle verbindingen moeten volledig worden verwijderd om de stroom van deze eenheid volledig te verwijderen. Varoitus Tässä laitteessa on useampia virtalähdekytkentöjä.
Safety Guidelines and Warnings Power Disconnection Warning Before working on the router or near power supplies, unplug the power cord from an AC router; switch off the power at the circuit breaker on a DC router. Waarschuwing Voordat u aan een frame of in de nabijheid van voedingen werkt, dient u bij wisselstroom toestellen de stekker van het netsnoer uit het stopcontact te halen; voor gelijkstroom toestellen dient u de stroom uit te schakelen bij de stroomverbreker.
Safety Guidelines and Warnings TN and IT Power Warning The router is designed to work with TN, IT power systems. Waarschuwing Het apparaat is ontworpen om te functioneren met TN, IT energiesystemen. Varoitus Koje on suunniteltu toimimaan TN-, IT-sähkövoimajärjestelmien yhteydessä. Attention Ce dispositif a été conçu pour fonctionner avec des systèmes d'alimentation TN. Warnung Das Gerät ist für die Verwendung mit TN-, IT-Stromsystemen ausgelegt.
Safety Guidelines and Warnings Chassis Lifting Guidelines A fully configured router weighs about 280 lb (127 kg). Observe the following guidelines for lifting and moving the router: Before moving the router, read the guidelines in “Prepare the Site” on page 39 to verify that the intended site meets the specified power, environmental, and clearance requirements. Do not attempt to lift a fully configured router by yourself. Using a mechanical lift to maneuver the router into a rack is recommended.
Safety Guidelines and Warnings Rack-Mounting Requirements and Warnings Ensure that the equipment rack into which the router is installed is evenly and securely supported, to avoid the hazardous condition that could result from uneven mechanical loading. To prevent bodily injury when mounting or servicing the router in a rack, take the following precautions to ensure that the system remains stable.
Safety Guidelines and Warnings Attention Pour éviter toute blessure corporelle pendant les opérations de montage ou de réparation de cette unité en casier, il convient de prendre des précautions spéciales afin de maintenir la stabilité du système. Les directives ci-dessous sont destinées à assurer la protection du personnel : Le rack sur lequel est monté le Juniper Networks router doit être fixé à la structure du bâtiment.
Safety Guidelines and Warnings Advarsel Unngå fysiske skader under montering eller reparasjonsarbeid på denne enheten når den befinner seg i et kabinett. Vær nøye med at systemet er stabilt. Følgende retningslinjer er gitt for å verne om sikkerheten: Juniper Networks router må installeres i et stativ som er forankret til bygningsstrukturen. Denne enheten bør monteres nederst i kabinettet hvis dette er den eneste enheten i kabinettet.
Safety Guidelines and Warnings Varning! För att undvika kroppsskada när du installerar eller utför underhållsarbete på denna enhet på en ställning måste du vidta särskilda försiktighetsåtgärder för att försäkra dig om att systemet står stadigt. Följande riktlinjer ges för att trygga din säkerhet: Juniper Networks router måste installeras i en ställning som är förankrad i byggnadens struktur. Om denna enhet är den enda enheten på ställningen skall den installeras längst ned på ställningen.
Safety Guidelines and Warnings Laser Beam Warning on page 78 Radiation From Open Port Apertures Warning on page 79 General Laser Safety Guidelines When working around PICs, observe the following safety guidelines to prevent eye injury: Do not look into unterminated ports or at fibers that connect to unknown sources. Do not examine unterminated optical ports with optical instruments. Avoid direct exposure to the beam. Unterminated optical connectors can emit invisible laser radiation.
Safety Guidelines and Warnings Class 1 LED Product Warning Class 1 LED product. Waarschuwing Klasse 1 LED-product. Varoitus Luokan 1 valodiodituote. Attention Alarme de produit LED Class I. Warnung Class 1 LED-Produktwarnung. Avvertenza Avvertenza prodotto LED di Classe 1. Advarsel LED-produkt i klasse 1. Aviso Produto de classe 1 com LED. ¡Advertencia! Aviso sobre producto LED de Clase 1. Varning! Lysdiodprodukt av klass 1.
Safety Guidelines and Warnings Radiation From Open Port Apertures Warning Because invisible radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to radiation and do not stare into open apertures. Waarschuwing Aangezien onzichtbare straling vanuit de opening van de poort kan komen als er geen fiberkabel aangesloten is, dient blootstelling aan straling en het kijken in open openingen vermeden te worden.
Safety Guidelines and Warnings Battery Handling Warning Replacing the battery incorrectly might result in an explosion. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. Waarschuwing Er is ontploffingsgevaar als de batterij verkeerd vervangen wordt. Vervang de batterij slechts met hetzelfde of een equivalent type dat door de fabrikant aanbevolen is.
Safety Guidelines and Warnings Jewelry Removal Warning Before working on equipment that is connected to power lines, remove jewelry, including rings, necklaces, and watches. Metal objects heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Waarschuwing Alvorens aan apparatuur te werken die met elektrische leidingen is verbonden, sieraden (inclusief ringen, kettingen en horloges) verwijderen.
Safety Guidelines and Warnings Lightning Activity Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Waarschuwing Tijdens onweer dat gepaard gaat met bliksem, dient u niet aan het systeem te werken of kabels aan te sluiten of te ontkoppelen. Varoitus Älä työskentele järjestelmän parissa äläkä yhdistä tai irrota kaapeleita ukkosilmalla. Attention Ne pas travailler sur le système ni brancher ou débrancher les câbles pendant un orage.
Safety Guidelines and Warnings Operating Temperature Warning To prevent the router from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 104°F (40°C). To prevent airflow restriction, allow at least 6 inches (15.2 cm) of clearance around the ventilation openings.
Agency Approvals Product Disposal Warning Disposal of this product must be handled according to all national laws and regulations. Waarschuwing Dit produkt dient volgens alle landelijke wetten en voorschriften te worden afgedankt. Varoitus Tämän tuotteen lopullisesta hävittämisestä tulee huolehtia kaikkia valtakunnallisia lakeja ja säännöksiä noudattaen. Attention La mise au rebut définitive de ce produit doit être effectuée conformément à toutes les lois et réglementations en vigueur.
Agency Approvals EMC AS/NZS 3548 Class A (Australia/New Zealand) BSMI Class A (Taiwan) EN 55022 Class A Emissions (Europe) FCC Part 15 Class A (USA) VCCI Class A (Japan) Immunity EN 61000-3-2 Power Line Harmonics EN 61000-4-2 ESD EN 61000-4-3 Radiated Immunity EN 61000-4-4 EFT EN 61000-4-5 Surge EN 61000-4-6 Low Frequency Common Immunity EN 1000-4-11 Voltage Dips and Sags NEBS (designed to meet these standards) GR-63-Core: NEBS, Physical Protection
Compliance Statements for EMC Requirements Compliance Statements for EMC Requirements Canada This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. European Community This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Japan The preceding translates as: This is a Class A product.
Compliance Statements for EMC Requirements Regulatory Compliance and Safety Information 87
Compliance Statements for EMC Requirements 88 M40 Internet Router Hardware Guide
Chapter 7 Prepare to Install the Router This chapter explains how to unpack the router and verify the parts received. Before beginning, prepare the installation site as described in “Prepare the Site” on page 39 and review the safety information in “Regulatory Compliance and Safety Information” on page 55.
General Safety Guidelines and Warnings General Safety Guidelines and Warnings This manual uses the following three levels of safety warnings. Pay careful attention to them as you install the router: You might find this information helpful in a particular situation, or might otherwise overlook it. You need to observe the specified guidelines to avoid minor injury or discomfort to you, or severe damage to the router. You are in a dangerous situation that could cause bodily injury.
Prevent Electrostatic Discharge Damage Avoid spilling liquid onto the router chassis or onto any router component. Such an action could cause electrical shock or damage the router. Avoid touching uninsulated electrical wires or terminals that have not been disconnected from their power source. Such an action could cause electrical shock. For a complete list of safety guidelines and warnings, see “Regulatory Compliance and Safety Information” on page 55.
Unpack the Router Figure 21: Place a Board Component into an Electrostatic Bag CAUTION ELECTROSTATIC SENSITIVE DEVICES 1051 DO NOT OPEN OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION Unpack the Router The router is shipped in a wooden crate and bolted to the pallet that forms the bottom of the crate. The crate also contains an accessory box, the handle used during manual router installation, and the M40 Internet Router Installation Quick Start poster.
Unpack the Router Figure 22: Contents of the Shipping Crate This end up Carton flaps Accessory box Shipping carton Chassis Shipping bracket bolts chassis to pallet Pallet 7. Verify the chassis components received against the packing list included with the router. A generic parts inventory appears in Table 19. If any part is missing, contact a customer service representative. 8. Use a 9/16-in.
Rack-Mounting Brackets Component Quantity Shipped Routing Engine 1 Power supply with integrated fan 2 Rack-Mounting Brackets Front rack-mounting ears are built into the chassis sides, as shown in Figure 23. If requested, a center rack-mounting kit can be shipped with the router (see Figure 24). You attach center rack-mounting ears along the middle of either side of the chassis with the screws provided.
Rack-Mounting Brackets Figure 24: Optional C-Bracket Shelf, Center-Mounting Ears, and Screws Mounting ears Screws 1016 C-bracket Side handles can also be requested (see Figure 25), to make it easier to lift the chassis into the rack. They are recommended if a mechanical lift is not used.
Rack-Mounting Brackets 96 M40 Internet Router Hardware Guide
Chapter 8 Install the Router and Configure Software Before installing the router, prepare the site as described in “Prepare the Site” on page 39 and unpack the router from the shipping crate as described in “Unpack the Router” on page 92. You can install the router into a rack either with or without the help of a mechanical lift. Because a fully configured router weighs approximately 280 lb (127 kg), using a mechanical lift is recommended.
Install the Router Using a Mechanical Lift Wire cutters Pliers Install the Router Using a Mechanical Lift Using a mechanical lift to maneuver the router into the rack is recommended because of the router’s size and weight. The lift must be able to accommodate the router’s weight—approximately 280 lb (127 kg) fully configured—and must fit between the support posts of the rack. If you are installing two routers in one rack, install the lower one first.
Install the Router without Using a Mechanical Lift 5. Align the bottom hole in both front- or center-mounting ears with a hole in each rack rail, making sure the chassis is level. 6. Install one of the mounting screws provided (in the accessory box shipped with the router) into each of the two aligned holes. 7. Moving up each post or ear, install a screw in every mounting hole. 8.
Install the Router without Using a Mechanical Lift Remove Components from the Chassis To make the router light enough to install without a mechanical lift, you must remove most of the components. The procedures in this section apply only to initial installation and assume that you have not yet connected power to the router. If power is connected, completely disconnect it before continuing. See “Disconnect AC Power from the Router” on page 140 or “Disconnect DC Power from the Router” on page 147.
Install the Router without Using a Mechanical Lift Remove the Power Supplies The router has two power supplies (either AC or DC) located at the bottom rear of the chassis (see Figure 2). Each power supply weighs approximately 20 lb (9 kg). To remove the power supplies, follow this procedure (see Figure 26, which shows an AC power supply): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2.
Install the Router without Using a Mechanical Lift Remove the Routing Engine Housing The Routing Engine resides in a metal housing in the rear of the chassis, below the fan tray (see Figure 2). The Routing Engine housing weighs approximately 17 lb (8 kg) and is about 16 in. (40.64 cm) deep. To remove the Routing Engine housing, follow this procedure (see Figure 27): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2.
Install the Router without Using a Mechanical Lift 3. Grasp the handle at the top of the assembly, and slide it about halfway out of the chassis. 4. Move one of your hands underneath the assembly to support it, and slide it completely out of the chassis. 1021 Figure 28: Remove the Upper Impeller Assembly Remove the Fan Tray The fan tray is located at the rear of the chassis, beneath the upper impeller assembly (see Figure 2). On some M40 routers, the tray is covered by a protective screen.
Install the Router without Using a Mechanical Lift Remove the Cable Management System The cable management system is located at the top front of the chassis, above the card cage (see Figure 1). It weighs only about 1 lb (0.5 kg), but you might want to remove it so that it does not interfere with your hand hold as you lift the chassis. To remove the cable management system, follow this procedure: 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2.
Install the Router without Using a Mechanical Lift Remove the FPCs The router can have up to eight FPCs mounted vertically in the FPC card cage at the front of the chassis (see Figure 1). An FPC that houses four PICs weighs about 3 lb (1.5 kg). To help you work systematically, the following procedure directs you to remove FPCs starting at the left side of the card cage and working toward the right. You can remove FPCs in any order, however.
Install the Router without Using a Mechanical Lift c. Grasp both sides of the card carrier and slide the FPC about halfway out of the card cage. d. Place one hand under the FPC to support it, slide it completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag prepared in Step 1. Do not stack FPCs on top of one another (or any other components) after removal. Place each one individually in an electrostatic bag or on its own antistatic mat on a flat, stable surface. 5.
Install the Router without Using a Mechanical Lift 5. Grasp both sides of the SCB and slide it about halfway out of the chassis. 6. Place one hand under the SCB to support it, slide it completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag prepared in Step 1. Figure 33: Remove the SCB Extractor clip 1052 Thumbscrew Remove the Air Filter The air filter is located below the craft interface at the front of the chassis (see Figure 1).
Install the Router without Using a Mechanical Lift Figure 34: Remove the Air Filter 1039 Craft interface display Remove the Lower Impeller Assembly The lower impeller assembly is located just above the air intake on the front of the chassis, behind the craft interface (see Figure 1). The assembly weighs approximately 9 lb (4 kg). To remove the lower impeller assembly, follow this procedure (see Figure 35): 1.
Install the Router without Using a Mechanical Lift Install the Chassis into the Rack After you have removed components as described in “Remove Components from the Chassis” on page 100, the chassis is light enough for a team of installers to lift into the rack. Lifting the empty chassis and mounting it into a rack requires three people to lift and a fourth person to secure the mounting screws. The empty chassis weighs approximately 180 lb (82 kg).
Install the Router without Using a Mechanical Lift 4. Prepare to lift the router: A person stands on either side of the chassis. Each grasps the side edge of the FPC card cage with one hand, and either grasps the lifting handle with the other hand or places the other hand under the chassis near the rear. A third person stands behind the chassis and lifts from under it with both hands. 5. Lift the chassis and position it in the rack. If the C-bracket is installed, rest the router on it.
Install the Router without Using a Mechanical Lift 8. Verify that all the mounting screws on one side of the rack are aligned with the mounting screws on the opposite side and that the router is level. 9. Proceed to the instructions in “Reinstall Components into the Chassis” on page 111. Reinstall Components into the Chassis After you have mounted the chassis in the rack as described in “Install the Chassis into the Rack” on page 109, reinstall the router components into the chassis.
Install the Router without Using a Mechanical Lift 3. Slide the assembly all the way into the chassis. 4. Using a Phillips screwdriver, tighten the three captive screws at the bottom edge of the assembly to seat it firmly in the chassis. Figure 37: Reinstall the Lower Impeller Assembly 1062 Screws Reinstall the Air Filter The air filter is located below the craft interface at the front of the chassis (see Figure 1). To reinstall it, follow this procedure (see Figure 38): 1.
Install the Router without Using a Mechanical Lift Reinstall the SCB The SCB is located at the center of the card cage, at the front of the chassis (see Figure 1). To reinstall it, follow this procedure (see Figure 39): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Grasp the front of the SCB with both hands and align the rear of the card carrier with the slide guides in the card cage. 3.
Install the Router without Using a Mechanical Lift Reinstall the FPCs The FPCs install into the card cage at the front of the chassis, as shown in Figure 1. To help you work systematically, the following procedure directs you to reinstall FPCs starting at the left side of the card cage and working toward the right. You can install FPCs in any order, however. Be sure there is a blank panel over every empty slot.
Install the Router without Using a Mechanical Lift Figure 40: Reinstall an FPC Extractor clip Thumbscrew FPC 1060 LEDs and offline button Reinstall the Cable Management System The cable management system is located at the top front of the chassis, above the card cage (see Figure 1). If you removed it in “Remove the Cable Management System” on page 104, follow this procedure to reinstall it: 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2.
Install the Router without Using a Mechanical Lift Figure 42: Reinstall the Cable Management System Cover 1076 Captive screws Reinstall the Fan Tray The fan tray is located at the rear of the chassis, beneath the upper impeller assembly (see Figure 2). On some M40 routers, the tray is covered by a protective screen, which should already be in place on the tray. To reinstall the tray, follow this procedure (see Figure 43): 1.
Install the Router without Using a Mechanical Lift Reinstall the Upper Impeller Assembly The upper impeller assembly is located at the top rear of the chassis, above the fan tray (see Figure 2). To reinstall it, follow this procedure (see Figure 44): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Grasp the handle at the top of the assembly and slide the assembly all the way into the chassis. 3.
Install the Router without Using a Mechanical Lift 1055 Figure 45: Reinstall the Routing Engine Housing Reinstall the Power Supplies The router has two power supplies (either AC or DC) located at the bottom rear of the chassis (see Figure 2). To reinstall the power supplies, follow this procedure (see Figure 46, which shows an AC power supply): 118 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2.
Connect the Router to Management and Alarm Devices Figure 46: Reinstall a Power Supply Extractor/inserter Captive screw 1035 Safety interlock lever Connect the Router to Management and Alarm Devices After you have installed the router into the rack, connect the Routing Engine to one or more external devices for management and service operations. Figure 47 shows the location of the Routing Engine interface ports and alarm relay contacts on the craft interface.
Connect the Router to Management and Alarm Devices Connect to a Network for Out-of-Band Management Connect the Routing Engine to a network for out-of-band management through the MANAGEMENT ETHERNET port on the craft interface. One cable with RJ-45/RJ-45 connectors is provided with the router, as detailed in “Routing Engine Interface Cable and Wire Specifications” on page 53. Follow this procedure: 1.
Connect PIC Cables Connect to an External Alarm-Reporting Device You can connect the router to external alarm-reporting devices through the relay contacts on the craft interface next to the LEDs labeled RED ALARM and YELLOW ALARM (see Figure 47). A system condition that triggers the red or yellow alarm LED on the craft interface also activates the corresponding alarm relay contact. The alarm relay contacts accept wire of any gauge between 28-AWG and 14-AWG (0.09 and 2.09 mm2) wire, which is not provided.
Provide Power to the Router 4. Carefully thread the cable through the hooks in the cable management system at the upper front of the chassis (see Figure 1), to prevent the cable from dislodging or developing stress points. Secure the cable so that it is not supporting its own weight as it hangs to the floor. Place excess cable out of the way in a neatly coiled loop in the cable management system. Placing fasteners on the loop helps to maintain its shape.
Provide Power to the Router Connect Power to an AC-Powered Router You connect power to an AC-powered router by plugging the power cord supplied with each power supply into the appliance inlet on the power supply faceplate and into an AC power source receptacle. To connect the AC power cords, follow this procedure: 1. Verify that the switch on each power supply faceplate is in the OFF (O) position. 2.
Provide Power to the Router 3. Verify that the power switch is in the OFF (0) position (see Figure 51). Power switch 1128a Figure 51: DC Power Switch in the Off Position 4. Attach the grounding cable to a proper earth ground for both external DC power sources, if it is not already. 5. Remove the nuts and locking washers that are preinstalled on the grounding studs at the lower right corner of the power supply faceplate. Slide the grounding cable lug onto the studs and replace the washers and nuts.
Provide Power to the Router Figure 52: Attach Cables to the DC Power Supply . Locking washers Cable lug Terminal studs Input Return 1131 Nuts Grounding studs 8. Secure the power cable lugs to the terminal studs, first with a washer, then with a nut (the washers and nuts are provided with the router). Using a 7/16-in. nut driver or wrench, tighten the nuts. Do not substitute a metric nut driver or wrench. A tool that does not fit the nuts exactly can damage them. If a 7/16-in.
Provide Power to the Router 3. Turn on the power to the management device that is connected to the Routing Engine through the craft interface port labeled CONSOLE, AUXILIARY, or MANAGEMENT ETHERNET. For more information on connecting management devices, see “Connect the Router to Management and Alarm Devices” on page 119. 4. Press the power switch on one power supply to the ON ( | ) position. Verify that the green LED labeled OK on the power supply faceplate eventually lights steadily.
Configure the JUNOS Internet Software Configure the JUNOS Internet Software The router is shipped with the JUNOS Internet software preinstalled and ready to be configured when the router is powered on. There are three copies of the software: one on a nonrotating flash disk in the Routing Engine, one on a rotating hard disk in the Routing Engine, and one on an LS-120 disk that ships with the router.
Configure the JUNOS Internet Software 7. Configure the IP address and prefix length for the router’s Ethernet interface. [edit] root@# set interfaces fxp0 unit 0 family inet address address/prefix-length 8. Configure the IP address of a backup router, which is used only while the routing protocol is not running. [edit] root@# set system backup-router address 9. Configure the IP address of a DNS server. [edit] root@# set system name-server address 10.
Configure the JUNOS Internet Software 11. Optionally, display the configuration to verify that it is correct. [edit] root@# show system { host-name host-name; domain-name domain-name; backup-router address; root-authentication { authentication-method (password | public-key); } name-server { address; } } interfaces { fxp0 { unit 0 { family inet { address address/prefix-length; } } } } 12. Commit the configuration to activate it on the router. [edit] root@# commit 13.
Configure the JUNOS Internet Software 130 M40 Internet Router Hardware Guide
Part 3 Hardware Maintenance and Replacement Procedures Hardware Maintenance Overview on page 133 Maintain and Replace the Power Supplies on page 135 Maintain and Replace Cooling System Components on page 153 Maintain and Replace Packet Forwarding Engine Components on page 161 Maintain and Replace Routing Engine Components on page 173 Maintain and Replace Cables and Connectors on page 181 131
132 M40 Internet Router Hardware Guide
Chapter 9 Hardware Maintenance Overview This chapter discusses the following procedures for maintaining the router: Routine Maintenance Procedures on page 133 Replacing FRUs on page 133 For information about returning a part to Juniper Networks for repair or replacement, see “Return the Router or Its Components” on page 215.
Replacing FRUs 134 M40 Internet Router Hardware Guide
Chapter 10 Maintain and Replace the Power Supplies This chapter discusses the following topics related to maintaining and replacing the power supplies: Tools and Parts Required on page 135 Maintain the Power Supplies on page 135 Replace an AC Power Supply on page 136 Disconnect and Connect AC Power on page 140 Replace a DC Power Supply on page 141 Disconnect and Connect DC Power on page 147 Tools and Parts Required To replace DC or AC power supplies, you need the following tools and parts: Ph
Replace an AC Power Supply Issue the following CLI command to check the status of the power supplies. As shown in the sample output, the value OK in the Status column indicates that the power supply is operating normally: user@host> show chassis environment Class Item Power Power Supply A Power Supply B . . .
Replace an AC Power Supply Remove an AC Power Supply The AC power supplies are located at the bottom rear of the chassis (see Figure 2). Each AC power supply weighs approximately 20 lb (9 kg). Do not leave a power supply slot empty for more than a short time while the router is operational. The power supply must remain in the chassis for proper airflow. To remove an AC power supply, follow this procedure (see Figure 53): 1.
Replace an AC Power Supply Figure 53: Remove an AC Power Supply Captive screw Extractor/inserter 1018 Safety interlock lever Install an AC Power Supply To install an AC power supply, follow this procedure: 138 1. Verify that the switch on the power supply faceplate is in the OFF (O) position. 2. Locate the power cord shipped with the router, which should be appropriate for your geographical location (see “AC Power Cord Specifications” on page 45). 3.
Replace an AC Power Supply 10. Insert the appliance coupler end of the power cord into the appliance inlet on the power supply faceplate and insert the plug into an AC power source receptacle. Verify that the power cord does not block access to router components or drape where people could trip on it. 11. Press the power switch on the power supply to the ON ( | ) position. Verify that the green LED labeled OK on the power supply faceplate eventually lights steadily.
Disconnect and Connect AC Power Disconnect and Connect AC Power The power cord that plugs into the appliance inlet on the faceplate of each AC power supply provides direct connection to the external power source. See the following sections: Disconnect AC Power from the Router on page 140 Connect AC Power to the Router on page 140 Disconnect AC Power from the Router To disconnect AC power from the router, follow this procedure: 1.
Replace a DC Power Supply 4. Press the power switch on the faceplate of one power supply to the ON ( | ) position. The green OK LED on the power supply faceplate blinks rapidly for a short time, then lights steadily. After a power supply is turned on, it can take up to 60 seconds for status indicators—such as LEDs on the power supply, show chassis commands, and messages on the craft interface LCD—to indicate that the power supply is functioning normally.
Replace a DC Power Supply Remove a DC Power Supply The DC power supplies are located at the bottom rear of the chassis (see Figure 2). Each DC power supply weighs approximately 20 lb (9 kg). Do not leave a power supply slot empty for more than a short time while the router is operational. The power supply must remain in the chassis for proper airflow. To remove a DC power supply, follow this procedure: 1. Turn off the power flowing from the DC power source to the power supply.
Replace a DC Power Supply 4. Using a Phillips screwdriver, loosen the screws securing the protective shield over the power terminal studs and remove the shield. See Figure 56. Figure 56: Remove the Protective Shield from the Terminal Studs . Protective shield 1130 Washer 5. Using a 7/16-in. nut driver or wrench, loosen the nuts that secure the power cable lugs to the terminal studs. Remove the nuts, washers, and lug from each set of terminal studs. See Figure 57.
Replace a DC Power Supply 9. While holding the safety interlock lever up, turn the extractor/inserter counterclockwise until the power supply disengages from the backplane. See Figure 58. 10. Grasp the handle on the power supply faceplate and pull firmly to slide the unit about halfway out of the chassis. 11. Place one hand under the power supply to support it, then slide it completely out of the chassis.
Replace a DC Power Supply 9. Using a Phillips screwdriver, tighten (but do not overtighten) the thumbscrew at each upper corner of the power supply faceplate. 1132 Figure 59: Install a DC Power Supply 10. Slide the grounding cable lug onto the grounding studs at the lower right corner of the power supply faceplate. Secure the lug, first with locking washers, then with nuts. Using a 7/16-in. nut driver or wrench, tighten the nuts. Do not substitute a metric nut driver or wrench.
Replace a DC Power Supply 12. Slide the power cable lugs onto the terminal studs on the power supply faceplate (see Figure 61): Connect the positive (+) source cable lug to the return terminal, which is labeled RTN. Connect the negative (–) source cable lug to the input terminal, which is labeled –48V. Run the power cables to the left on the left power supply, and to the right on the right power supply.
Disconnect and Connect DC Power 15. Reinstall the protective shield covering the terminal studs. 16. Press the power switch on the power supply to the ON ( | ) position. Verify that the green LED labeled OK on the power supply faceplate eventually lights steadily. After a power supply is turned on, it can take up to 60 seconds for status indicators—such as LEDs on the power supply, show chassis commands, and messages on the craft interface LCD—to indicate that the power supply is functioning normally.
Disconnect and Connect DC Power 3. Flip the power switch on both power supplies to the OFF (O) position. See Figure 62. Figure 62: Flip the Power Switch on a DC Power Supply to the OFF Position . 1128 Power switch 4. Using a Phillips screwdriver, loosen and remove the screws securing the protective shield over the terminal studs on one power supply. Remove the shield. 5. Using a 7/16-in.
Disconnect and Connect DC Power 8. If not immediately attaching replacement cables, replace the protective shield over the terminal studs and tighten the screws that secure it to the box. 9. Verify that the removed cables are not touching or blocking access to any router components. 10. Repeats Steps 4 through 9 for the other power supply. Connect DC Power to the Router Connect DC power to the router by attaching power cables from external DC power sources to the terminal studs on the power supplies.
Disconnect and Connect DC Power Figure 64: Power Switch on a DC Power Supply in the OFF Position . 5. 1128a Power switch If the protective shield is installed over the power supply terminals, use a Phillips screwdriver to loosen and remove the screws that secure the shield to the power supply (see Figure 65). Figure 65: Remove the Protective Shield from the Terminal Studs . Protective shield 1130 Washer 6.
Disconnect and Connect DC Power Figure 66: Attach Cables to a DC Power Supply . Locking washers Cable lug Terminal studs Input Return 1131 Nuts Grounding studs 7. Secure the cable lugs to the terminal studs, first with locking washers, then nuts. 8. Verify that the DC power source wiring from the source DC breaker to the power supply is correct. 9. Reinstall the protective shield covering the terminal studs. 10. Repeat Steps 4 through 9 for the other power supply. 11.
Disconnect and Connect DC Power 13. Press the power switch on other power supply to the ON ( | ) position and confirm that the OK LED lights as described in Step 4. If the LED is not lit after 60 seconds, repeat the power supply installation procedures described in “Install a DC Power Supply” on page 144 and the previous steps in this procedure. 14. On the management device, monitor the startup process to verify that the system has booted properly.
Chapter 11 Maintain and Replace Cooling System Components his chapter describes how to maintain and replace cooling system components: Tools and Parts Required on page 153 Maintain and Replace the Air Filter on page 154 Maintain and Replace the Fan Tray on page 155 Maintain the Impeller Assemblies on page 157 Replace the Lower Impeller Assembly on page 158 Replace the Upper Impeller Assembly on page 159 Tools and Parts Required You need the following tools and parts to replace cooling system co
Maintain and Replace the Air Filter Maintain and Replace the Air Filter Check the air filter regularly for dust and debris, replacing it as necessary. The air filter is hot-removable and hot-insertable, as described in “Field-Replaceable Units (FRUs)” on page 4. Take note of the following caution, however. Do not operate the router for more than a few minutes when the air filter has been removed.
Maintain and Replace the Fan Tray Install the Air Filter To install the air filter, follow this procedure (see Figure 68): 1. Attach an ESD wrist strap to your bare wrist, and connect the wrist strap to one of the two ESD points on the chassis. 2. Grasp the sides of the air filter and push it firmly over the air intake, inserting its metal prongs into the chassis.
Maintain and Replace the Fan Tray Remove the Fan Tray The fan tray is located at the rear of the chassis, beneath the upper impeller assembly (see Figure 2). On some M40 routers, the tray is covered by a protective screen. You do not need to remove the screen before removing the fan tray from the chassis. The fan tray weighs approximately 5 lb (2 kg). To remove the fan tray, follow this procedure (see Figure 69): 1.
Maintain the Impeller Assemblies 1053 Figure 70: Install the Fan Tray Maintain the Impeller Assemblies The router has two non-interchangeable impeller assemblies. The lower impeller is located behind the craft interface at the front the chassis (see Figure 1), and the upper assembly is located above the fan tray at the rear of the chassis (see Figure 2). They work together to cool the Packet Forwarding Engine components. During normal operation, the impellers run at less than full speed.
Replace the Lower Impeller Assembly Replace the Lower Impeller Assembly The lower impeller assembly is located behind the craft interface at the front the chassis (see Figure 1) and works together with the upper assembly to cool the Packet Forwarding Engine components. It is hot-removable and hot-insertable.
Replace the Upper Impeller Assembly Install the Lower Impeller Assembly The lower impeller assembly is located behind the craft interface at the front the chassis (see Figure 1). To install it, follow this procedure (see Figure 72): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Grasp the sides of the assembly, and align the rear with the slide guides in the chassis. 3.
Replace the Upper Impeller Assembly 3. Grasp the handle at the top of the assembly, and slide it about halfway out of the chassis. 4. Move one of your hands underneath the assembly to support it, and slide it completely out of the chassis. 1021 Figure 73: Remove the Upper Impeller Assembly Install the Upper Impeller Assembly To install the upper impeller assembly, follow this procedure (see Figure 74): 1.
Chapter 12 Maintain and Replace Packet Forwarding Engine Components This chapter discusses the following topics about maintaining and replacing Packet Forwarding Engine components: Tools and Parts Required on page 161 Maintain FPCs and PICs on page 162 Replace an FPC or Quad-wide PIC on page 163 Replace a PIC on page 167 Maintain the SCB on page 169 Replace the SCB on page 169 Tools and Parts Required You need the following the tools and parts to replace Packet Forwarding Engine components: P
Maintain FPCs and PICs Maintain FPCs and PICs The router can have up to eight Flexible PIC Concentrators (FPCs) mounted vertically in the FPC card cage at the front of the chassis (see Figure 1). To maintain FPCs and the Physical Interface Cards (PICs) housed in them, perform the following procedures on a regular basis: Check the LCD on the craft interface and the LEDs on the craft interface directly below each FPC slot. The green LED labeled OK lights steadily when an FPC is functioning normally.
Replace an FPC or Quad-wide PIC For further description of the output from the commands, see the JUNOS Internet Software Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management. Replace an FPC or Quad-wide PIC FPCs and quad-wide PICs are hot-removable and hot-insertable, as described in “Field-Replaceable Units (FRUs)” on page 4.
Replace an FPC or Quad-wide PIC Figure 75: Remove an FPC Extractor clip Thumbscrew FPC 1060a LEDs and offline button 5. Disconnect the cables from the PICs on the FPC. If a PIC uses fiber-optic cable, immediately cover each transceiver and the end of each cable with a rubber safety cap. Carefully thread each disconnected cable through the hooks in the cable management system, to prevent the cables from developing stress points.
Replace an FPC or Quad-wide PIC 10. If you are removing or replacing PICs on the FPC, see “Replace a PIC” on page 167. 11. If you are not immediately reinstalling an FPC into the slot, cover the slot with a blank panel so that cooling air can circulate properly through the FPC card cage. Install an FPC or Quad-wide PIC To install an FPC or quad-wide PIC, follow this procedure (for brevity, the instructions refer to FPCs only): 1.
Replace an FPC or Quad-wide PIC 9. Insert the appropriate cables into the cable connector ports on each PIC on the FPC. Secure the cables so that they are not supporting their own weight. Place excess cable out of the way in a neatly coiled loop, using the cable management system. Placing fasteners on a loop helps to maintain its shape. Do not let cable hang free from the connector. Do not allow fastened loops of cable to dangle from the ladder rack, because this stresses the cable at the fastening point.
Replace a PIC Replace a PIC PICs are housed in the FPCs installed in the front of the router, as shown in Figure 4. Quad-wide PICs, such as the OC-48/STM-16 SONET/SDH PIC, occupy an entire FPC slot and are hot-removable and hot-insertable, as described in “Field-Replaceable Units (FRUs)” on page 4. For replacement instructions, see “Replace an FPC or Quad-wide PIC” on page 163.
Replace a PIC g003121 Figure 77: Remove a PIC Install a PIC To install a PIC, follow this procedure (see Figure 78): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Place the FPC into which you are installing the PIC on an antistatic foam mat, component side up and with its faceplate facing you.
Maintain the SCB 1007 Figure 78: Install a PIC Maintain the SCB The System Control Board (SCB) occupies the center slot of the card cage, installing into the backplane from the front of the chassis (see Figure 1). To maintain the SCB, follow these guidelines: Check the LEDs on the SCB faceplate. The green LEDs labeled ACTIVE and RUN blink periodically when it is functioning normally. For more information, see “SCB Components” on page 13.
Replace the SCB To replace the SCB, perform the following procedures: Remove the SCB on page 170 Install the SCB on page 171 Remove the SCB The SCB is located at the center of the card cage, at the front of the chassis (see Figure 1). It weighs approximately 1 lb (0.5 kg). To remove the SCB, follow this procedure (see Figure 79): 1. Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the SCB. 2.
Replace the SCB Install the SCB To install the SCB, follow this procedure (see Figure 80): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Verify that the ends of the extractor clips are pointing outward toward the ends of the SCB. 3. Grasp the front of the SCB with both hands and align the rear of the card carrier with the slide guides in the card cage. 4. Slide the SCB all the way into the card cage until it contacts the backplane. 5.
Replace the SCB 172 M40 Internet Router Hardware Guide
Chapter 13 Maintain and Replace Routing Engine Components This chapter discusses the following topics about maintaining and replacing Routing Engine components: Tools and Parts Required on page 173 Maintain the Routing Engine on page 174 Replace the Routing Engine Housing on page 174 Replace the Routing Engine on page 176 Replace the LS-120 Drive on page 180 Tools and Parts Required To replace Routing Engine components, you need the following the tools and parts: Phillips (+) screwdrivers, numb
Maintain the Routing Engine Maintain the Routing Engine To maintain the Routing Engine, perform the following procedures on a regular basis: Check the LCD and the Routing Engine LEDs on the craft interface. The LCD reports Routing Engine status during normal operation and describes the cause of failures when they occur. The green LED labeled OK lights steadily when the Routing Engine is functioning normally. For more information about the LEDs and LCD, see “Craft Interface” on page 17.
Replace the Routing Engine Housing Remove the Routing Engine Housing To remove the Routing Engine housing, use the following procedure (see Figure 81): 1. On the console or other management device connected to the Routing Engine, enter CLI operational mode and issue the following command.
Replace the Routing Engine 3. Align the rear of the unit with the slide guides in the chassis. 4. Slide the unit completely into the chassis. 5. Using a Phillips screwdriver, tighten the screws along the left and right edges of the Routing Engine housing (six in all). 1055 Figure 82: Install the Routing Engine Housing Replace the Routing Engine The Routing Engine is hot-pluggable, as described in “Field-Replaceable Units (FRUs)” on page 4.
Replace the Routing Engine Remove the Routing Engine The Routing Engine is housed in the Routing Engine housing. It weighs approximately 1.5 lb (0.7 kg). To remove the Routing Engine, follow this procedure: 1. Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the Routing Engine. 2. Attach an ESD wrist strap to your bare wrist and connect the wrist strap to one of the two ESD points on the chassis. 3.
Replace the Routing Engine Figure 83: Remove the Routing Engine RST IDE JUNOS PC CARD LABEL THIS WAY 1004 PC CARD Install the Routing Engine To install the Routing Engine in the Routing Engine housing, follow this procedure (see Figure 82): 1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Verify that the extractor clip at each end of the Routing Engine is flipped toward the outer edge of the unit.
Replace the Routing Engine 5. Press the extractor clip at each end of the Routing Engine inward to seat the unit firmly in the chassis. 6. If screws are installed in the extractor clips, use a Phillips screwdriver to tighten them. 7. Return the Routing Engine housing to the chassis. For instructions, see “Install the Routing Engine Housing” on page 175. 8.
Replace the LS-120 Drive Replace the LS-120 Drive To replace the LS-120 drive, use the following procedure (see Figure 85). You can perform this procedure without powering down the router. 1. Remove the Routing Engine housing from the chassis, if it is not already. For instructions, see “Remove the Routing Engine Housing” on page 175. 2. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 3.
Chapter 14 Maintain and Replace Cables and Connectors This chapter describes how to maintain and replace cables and connectors: Tools and Parts Required on page 181 Cable Specifications on page 182 Maintain PIC Cables on page 182 Replace PIC Cables on page 183 Replace Power Supply Cables on page 185 Replace Cables and Wire Connecting to Routing Engine Interface Ports on page 186 Tools and Parts Required To replace network and power cords, cables, and wiring, you need the following tools and par
Cable Specifications Cable Specifications See the following sections for specifications for the indicated type of cable. For information about the cable used by the PICs supported on the M40 router, see the M20 and M40 Internet Routers PIC Guide.
Replace PIC Cables Replace PIC Cables Removing and installing PIC cables does not affect router function, except that the PIC does not receive or transmit data while the cable is disconnected. To replace a PIC cable, perform the following procedures: Remove a PIC Cable on page 183 Install a PIC Cable on page 184 Remove a PIC Cable To remove a PIC cable, follow this procedure: 1.
Replace PIC Cables Install a PIC Cable 1. Have ready a length of the type of cable used by the PIC, as specified in the M20 and M40 Internet Routers PIC Guide. Figure 86 depicts the connector on fiber-optic cable. Figure 86: PIC Fiber-Optic Cable Connector 2. Remove the rubber safety plug from the PIC cable connector port. Do not look directly into the ends of fiber-optic cables or the transceivers on the faceplate of a PIC that connects to fiber-optic cable.
Replace Power Supply Cables 1034 Figure 87: Connect Fiber-Optic Cable to a PIC Replace Power Supply Cables For instructions for replacing AC or DC power cables, see “Disconnect and Connect AC Power” on page 140 and “Disconnect and Connect DC Power” on page 147.
Replace Cables and Wire Connecting to Routing Engine Interface Ports Replace Cables and Wire Connecting to Routing Engine Interface Ports To replace the cables and wires that connect external management devices to the craft interface (see Figure 88), perform the procedures described in the following sections: Replace the Management Ethernet Cable on page 186 Replace the Console or Auxiliary Cable on page 187 Replace Alarm Relay Wire on page 188 Figure 88: Routing Engine Interface Ports on the Craft
Replace Cables and Wire Connecting to Routing Engine Interface Ports 1063 Figure 89: Management Port Ethernet Connector Replace the Console or Auxiliary Cable The cable that plugs into the port labeled CONSOLE on the craft interface connects the Routing Engine to a system console. The cable that plugs into the port labeled AUXILIARY connects the Routing Engine to a laptop, modem, or other auxiliary device (see Figure 88). Both ports accept an RS-232 (EIA-232) serial cable with DB-9/DB-9 connectors.
Replace Cables and Wire Connecting to Routing Engine Interface Ports Replace Alarm Relay Wire The alarm relay contacts located on the craft interface to the left of the red and yellow alarm LEDS connect to external alarm devices that report conditions that trigger a red or yellow alarm (see Figure 88). The alarm relay contacts accept wire of any gauge between 28-AWG and 14-AWG (0.09 and 2.09 mm2 ), which is not provided.
Part 4 Troubleshooting Troubleshooting Overview on page 191 Troubleshoot the Power Supplies on page 195 Troubleshoot the Cooling System on page 197 Troubleshoot the Packet Forwarding Engine Components on page 201 189
190 M40 Internet Router Hardware Guide
Chapter 15 Troubleshooting Overview This chapter provides an overview of the resources you can use while troubleshooting problems with the router: Command-Line Interface on page 191 LEDs on page 192 Hardware and Interface Alarm Messages on page 192 Juniper Networks Technical Assistance Center on page 194 For information about troubleshooting problems with specific hardware components—including the cooling system, power supplies, and the Packet Forwarding Engine—see the subsequent chapters in this do
LEDs LEDs The LEDs described in the following sections indicate the basic status of hardware components: LEDs on the Craft Interface on page 192 LEDs on Hardware Components on page 192 LEDs on the Craft Interface The craft interface hosts LEDs and an LCD that provide status and troubleshooting information at a glance. It is located on the front of the chassis below the FPC card cage (see Figure 1).
Hardware and Interface Alarm Messages user@host> show chassis alarms There are two classes of alarm messages: Chassis alarms—Indicate a problem with a chassis component such as the cooling system or power supplies, as described in Table 22. The text in the column labeled “LCD Message” appears in the LCD. The text in the column labeled “CLI Message” appears in the output from the show chassis alarms command.
Juniper Networks Technical Assistance Center Table 23: SONET Interface Alarm Messages LCD Message CLI Message interface-name so-x/x/x LOL interface-name so-x/x/x - SONET loss of light interface-name so-x/x/x PLL interface-name so-x/x/x - SONET PLL lock interface-name so-x/x/x LOF interface-name so-x/x/x - SONET loss of frame interface-name so-x/x/x LOS interface-name so-x/x/x - SONET loss of signal interface-name so-x/x/x SEF interface-name so-x/x/x - SONET severely errored frame interface-name
Chapter 16 Troubleshoot the Power Supplies When a power supply is functioning correctly, the green LED labeled OK is lit steadily and the red LED labeled FAIL is not lit.
All LEDs on One Supply are Off or LED States are not Correct Perform the following steps to diagnose and correct the problem: 1. Check the red alarm LED on the craft interface: If it is lit, issue the following CLI command for more information about the source of an alarm condition: user@host> show chassis alarms For a list of messages that can appear, see “Hardware and Interface Alarm Messages” on page 192.
Chapter 17 Troubleshoot the Cooling System The router’s cooling system comprises two separate subsystems: Upper and lower impeller assemblies—Cool the Packet Forwarding Engine components (backplane, SCB, FPCs, and PICs). The lower impeller assembly is located behind the craft interface at the front the chassis (see Figure 1), and the upper assembly is located above the fan tray at the rear of the chassis (see Figure 2). Each assembly houses two impellers for redundancy.
Troubleshoot the Fan Tray and Impeller Assemblies Troubleshoot the Fan Tray and Impeller Assemblies To troubleshoot the fan tray and impeller assemblies, follow these guidelines: If the red alarm LED on the craft interface lights, check the LCD on the craft interface for the source of the problem. The display reports the number of alarm conditions and the source of each alarm. For a list of messages, see “Hardware and Interface Alarm Messages” on page 192.
Troubleshoot the Power Supply Fans Troubleshoot the Power Supply Fans Two LEDs on each power supply faceplate report power supply status: a green LED labeled OK and a red LED labeled FAIL. In addition, a fail condition triggers the red alarm LED on the craft interface. Issue the following CLI command to check the status of the power supplies and their fans.
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Chapter 18 Troubleshoot the Packet Forwarding Engine Components This chapter discusses the following topics related to troubleshooting components of the Packet Forwarding Engine: Troubleshoot FPCs on page 201 Troubleshoot PICs on page 202 Troubleshoot the SCB on page 202 Troubleshoot FPCs As soon as an FPC is seated on an operating router, the Routing Engine downloads the FPC software to it. The FPC then runs diagnostics and enables the PICs that it houses.
Troubleshoot PICs For more detailed output, add the detail option. The following example also specifies a slot number (0), which is optional: user@host> show chassis fpc detail 0 Slot 0 information: State Logical slot 0 Temperature 28 Total CPU DRAM 8 Total SRAM 1 Total SDRAM 128 Total notification SDRAM 24 I/O Manager ASIC information Start time: Uptime: Online degrees C / 82 degrees F MB MB MB MB Version 1.
Troubleshoot the SCB If the green RUN LED on the SCB is not blinking, the SCB processor is not functioning normally. The SCB might not be connected properly to the backplane. Try tightening the screws at the top and bottom of the SCB card carrier. If that does not work, try reinstalling the SCB. When the Routing Engine is removed, the SCB enters a warm shutdown mode and continues forwarding data for a limited time using a frozen forwarding table.
Troubleshoot the SCB 204 M40 Internet Router Hardware Guide
Part 5 Appendixes Cable Connectors and Pinouts on page 207 Fiber-Optic Connector Cleaning on page 213 Return the Router or Its Components on page 215 Glossary on page 223 205
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Appendix A Cable Connectors and Pinouts This chapter contains tables that list the pinouts for the following cable connectors on the router: RJ-45 Connector Pinouts for the Ethernet Management Port on page 207 DB-9 Connector Pinouts for the Routing Engine Console and Auxiliary Ports on page 208 E1 and T1 RJ-48 Cable Pinouts on page 208 Fast Ethernet 12-port Cable Pinouts on page 211 RJ-45 Connector Pinouts for the Ethernet Management Port The port on the craft interface labeled MANAGEMENT ETHERNET
Cable Connectors and Pinouts DB-9 Connector Pinouts for the Routing Engine Console and Auxiliary Ports The ports on the craft interface labeled AUXILIARY and CONSOLE are DB-9 receptacles that accept RS-232 (EIA-232) cable. The AUXILIARY port connects the Routing Engine to a laptop, modem, or other auxiliary unit, and the CONSOLE port connects it to a management console. The ports are configured as data terminal equipment (DTE). For more information, see “Routing Engine LEDs and Interface Ports” on page 19.
Cable Connectors and Pinouts Table 26: RJ-48 Connector to RJ-48 Connector (Straight) Pinout RJ-48 Pin (on T1/E1 PIC) (Data numbering form) RJ-48 Pin (Data numbering form) Signal 1 1 RX, Ring, – 2 2 RX, Tip, + 4 4 TX, Ring, – 5 5 TX, Tip, + 3 3 Shield/Return/Ground 6 6 Shield/Return/Ground 7 No connect No connect 8 No connect No connect 9 No connect No connect 10 No connect No connect 11 No connect No connect 12 No connect No connect 13 No connect No connect 14 No
Cable Connectors and Pinouts Table 28: RJ-48 Connector to DB-15 Connector (Straight) Pinout RJ-48 Pin (on T1/E1 PIC) (Data numbering form) DB-15 Pin (Data numbering form) Signal 1 11 RX/Ring/– <––>RX/Ring/– 2 3 RX/Tip/+ <––>RX/Tip/+ 4 9 TX/Ring/– <––>TX/Ring/– 5 1 TX/Tip/+ <––>TX/Tip/+ 3 4 Shield/Return/Ground 6 2 Shield/Return/Ground 7 No connect No connect 8 No connect No connect 9 No connect No connect 10 No connect No connect 11 No connect No connect 12 No connect
Cable Connectors and Pinouts Fast Ethernet 12-port Cable Pinouts The Fast Ethernet 12-port PIC has one VHDCI connector port on its faceplate (see Figure 91), which accepts the RJ-21 cable supplied with the PIC (see Figure 92). Figure 91: Fast Ethernet 12-port PIC Ethernet 10 /100 BASE -TX 1801 STATUS 1480 Figure 92: VHDCI to RJ-21 Cable Table 30 describes the RJ-21 cable pinouts. RJ-21 pin numbers 25 and 50 do not appear in the table because they are ground connectors.
Cable Connectors and Pinouts 212 Ethernet Port Numbers RJ-21 Pin Assignment 9 20 45 19 44 10 22 47 21 46 11 24 49 23 48 M40 Internet Router Hardware Guide
Appendix B Fiber-Optic Connector Cleaning For proper performance of PICs that use SC fiber-optic cable, you must clean the fiber-optic transceivers before inserting SC cable. Because of the high sensitivity of fiber-optic PIC receivers, you must keep the PIC connectors clean and free of dust. Small micro-deposits of oil and dust in the canal of the SC connector could cause loss of light, reducing signal power and possibly causing intermittent problems with the optical connection.
Fiber-Optic Connector Cleaning To clean the fiber-optic cable SC connection, use only an approved alcohol-free fiber-optic cable cleaning kit such as the Opptex Cletop-S Fiber Cleaner. Follow the directions for the cleaning kit you use. Figure 95 shows a cable cleaning kit.
Appendix C Return the Router or Its Components This chapter discusses the following topics related to returning parts for repair or replacement: Return Procedure on page 215 Locate Component Serial Numbers on page 216 Pack the Router for Shipment on page 220 Pack Components for Shipment on page 221 Return Procedure When you need to return a component, follow this procedure: 1. Determine the part number and serial number of the component.
Return the Router or Its Components Locate Component Serial Numbers Your request for an RMA must include the component part and serial numbers. Issue the CLI show chassis hardware command to list the numbers for all components installed in the chassis: user@host> show chassis hardware Hardware inventory: Item Version Chassis Backplane REV 06 Power Supply A Rev Power Supply B Rev A1 Maxicab REV 05 Minicab REV 02 Display REV 07 Routing Engine ...
Return the Router or Its Components FPC Serial Number ID Label The serial number ID label on an FPC is located near the rear on the left side when the FPC is vertical, as it is when installed in the router (see Figure 97). Figure 97: FPC Serial Number ID Label STATUS RX 1603 TX LINE Y RX ACTIVIT Serial number ID label PIC Serial Number ID Label The serial number ID label on a PIC is located on the left side when the PIC is vertical, as it is when installed in the router (see Figure 98).
Return the Router or Its Components Power Supply Serial Number ID Label The serial number ID label on a power supply is located on the top (see Figure 99). Figure 99: Power Supply Serial Number ID Label 1605 Serial number ID label Routing Engine Serial Number Label The location of the serial number label depends on the type of Routing Engine (see Figure 100 and Figure 101). Some Routing Engines might have more than one serial number.
Return the Router or Its Components 1576 Figure 101: Routing Engine 600 Serial Number ID Label *1 2 3 4 5 6 7 8 9 1 0 1 2 * Serial number ID label SCB Serial Number ID Label The serial number ID label on an SCB is located at the center front of the board panel (see Figure 102). Figure 102: Serial Number Label on the System Control Board 1602 Serial number ID label 4.
Return the Router or Its Components Pack the Router for Shipment To pack the router for shipment, follow this procedure: 1. Retrieve the crate with bottom pallet and packing materials in which the router was originally shipped. 2. On the console or other management device connected to the Routing Engine, enter CLI operational mode and issue the following command to shut down the router software.
Return the Router or Its Components Pack Components for Shipment To pack and ship individual router components, follow these guidelines: Protect the component with enough packing material to prevent movement inside the carton. Use the original shipping materials if they are available. Place individual boards in electrostatic bags. Do not stack any of the Packet Forwarding Engine components.
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Appendix D Glossary A AAL ATM adaptation layer. A series of protocols enabling various types of traffic, including voice, data, image, and video, to run over an ATM network. ADM Add/drop multiplexer. SONET functionality that allows lower-level signals to be dropped from a high-speed optical connection. ANSI American National Standards Institute. The United States’ representative to the ISO. ARP Address Resolution Protocol. Protocol for mapping IP addresses to MAC addresses. AS Autonomous system.
Glossary BITS Border Gateway Protocol broadcast bundle C CE device CFM channel service unit CIDR class of service CLEC CLEI CLI community confederation constrained path See BGP. Operation of sending network traffic from one network node to all other network nodes. Collection of software that makes up a JUNOS software release. Customer edge device. Router or switch in the customer's network that is connected to a service provider's provider edge (PE) router and participates in a Layer 3 VPN.
Glossary CSU/DSU customer edge device D daemon Channel service unit/data service unit. Channel service unit connects a digital phone line to a multiplexer or other digital signal device. Data service unit connects a DTE to a digital phone line. See CE device. Background process that performs operations on behalf of the system software and hardware. Daemons normally start when the system software is booted, and they run as long as the software is running.
Glossary DSU Data service unit. A device used to connect a DTE to a digital phone line. Converts digital data from a router to voltages and encoding required by the phone line. See also CSU/DSU. DTE Data Terminal Equipment. RS-232-C interface that a computer uses to exchange information with a serial device. DVMRP Distance Vector Multicast Routing Protocol.
Glossary H HDLC hold time host subsystem I High-level data link control. An International Telecommunication Union (ITU) standard for a bit-oriented data link layer protocol on which most other bit-oriented protocols are based. Maximum number of seconds allowed to elapse between the time a BGP system receives successive keepalive or update messages from a peer. Provides routing and system-management functions of the router. Consists of a Routing Engine and an adjacent Control Board (CB).
Glossary J jitter K L kernel forwarding table label-switched path (LSP) label switching label-switching router link link-state PDU (LSP) M See forwarding table. Sequence of routers that cooperatively perform MPLS operations for a packet stream. The first router in an LSP is called the ingress router, and the last router in the path is called the egress router. An LSP is a point-to-point, half-duplex connection from the ingress router to the egress router.
Glossary N neighbor NET Network Time Protocol NIC NSAP n-selector NTP O Network entity title. Network address defined by the ISO network architecture and used in CLNS-based networks. See NTP. Network Information Center. Internet authority responsible for assigning Internet-related numbers, such as IP addresses and autonomous system numbers. See also IANA. Network service access point. Connection to a network that is identified by a network address. Last byte of a nonclient peer address.
Glossary PIM Protocol Independent Multicast. A protocol-independent multicast routing protocol. PIM Sparse Mode routes to multicast groups that might span wide-area and interdomain internets. PIM Dense Mode is a flood-and-prune protocol. PLP Packet Loss Priority. policing PPP Point-to-Point Protocol. Link-layer protocol that provides multiprotocol encapsulation. It is used for link-layer and network-layer configuration. preference Desirability of a route to become the active route.
Glossary RFI Radio frequency interference. Interference from high-frequency electromagnetic waves emanating from electronic devices. RIP Routing Information Protocol. Distance-vector interior gateway protocol that makes routing decisions based on hop count. routing domain See AS.
Glossary SSH SSRAM STM Secure shell. Software that provides a secured method of logging in to a remote network system. Synchronous Static Random Access Memory. Synchronous Transport Module. CCITT specification for SONET at 155.52 Mbps. STS Synchronous Transport Signal. Synchronous Transport Signal level 1. Basic building block signal of SONET, operating at 51.84 Mbps. Faster SONET rates are defined as STS-n, where n is a multiple of 51.84 Mbps. See also SONET.
Glossary virtual path identifier See VPI. Virtual Router Redundancy Protocol See VRRP. VPI VRRP W wavelength-division multiplexing WDM weighted round-robin WRR virtual path identifier. 8-bit field in the header of an ATM cell that indicates the virtual path the cell takes. See also VCI. Virtual Router Redundancy Protocol. On Fast Ethernet and Gigabit Ethernet interfaces, allows you to configure virtual default routers. See WDM. Wavelength-division multiplexing.
Glossary 234 M40 Internet Router Hardware Guide
Part 6 Index Index on page 237 235
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Index Index A AC power cord connection instructions during initial installation..............................123 for maintenance..........................................140 disconnection instructions..................................140 specifications .......................................................45 AC power supply description (hardware and function).....................21 grounding.............................................................
Index C cable auxiliary or console port on craft interface connecting during initial installation ........... 120 replacing for maintenance .......................... 187 tools required.............................................. 181 DC power and grounding connecting during initial installation ........... 123 connecting for maintenance ....................... 149 disconnecting.............................................. 147 tools required..............................................
Index LEDs alarm (red and yellow) ..................................18 FPC ...............................................................18 routine inspection of ..........................................133 Routing Engine ports See auxiliary port on craft interface, console port on craft interface, Ethernet port on craft interface crate See shipping crate D data flow, through Packet Forwarding Engine .............33 DB-9 cable connector pinouts (auxiliary and console ports) ............................
Index serial number..................................................... 217 status, checking ................................................. 162 tools required..................................................... 161 troubleshooting .................................................. 201 weight .................................................................. 99 front-mount rack See rack FRUs See field-replaceable units G grounding (electrical) specifications.............................
Index general guidelines .........................................79 impeller assemblies ....................................157 PIC ..............................................................162 Routing Engine ...........................................174 SCB .............................................................169 packing hardware components for shipment ...........221 router for shipment.....................................220 removal See removal instructions return router or components.....
Index P Packet Forwarding Engine architectural components..................................... 32 ASICs, diagram of ................................................ 32 components ........................................................... 9 cooling subsystem See lower impeller assembly, upper impeller assembly data flow through................................................. 33 packing crate See shipping crate Physical Interface Card See PIC PIC ASIC on ...................................................
Index FPC during initial installation..............................105 for maintenance or replacement.................163 lower impeller assembly during initial installation..............................108 for maintenance or replacement.................158 LS-120 drive .......................................................180 PIC quad-wide ...................................................163 regular ........................................................167 Routing Engine..............................
Index shipping crate repacking the router........................................... 220 unpacking the router............................................ 92 shock (earthquake), tested level .................................. 43 show chassis alarms command ................................. 192 show chassis environment command for fan tray......................................................... 155 for impeller assemblies ...................................... 157 for power supplies.........................
Index W warnings electrical...............................................................60 general .................................................................57 installation ...........................................................71 laser and LED .......................................................76 levels defined .......................................................55 maintenance and operational...............................79 weight fully configured router..............................
Index 246 M40 Internet Router Hardware Guide
