7.
Electrical Hazard: Only qualified personnel should perform installation procedures. Riesgo Electrico: Solamente personal calificado debe realizar procedimientos de instalacion. Elektrischer Gefahrenhinweis: Installationen sollten nur durch ausgebildetes und qualifiziertes Personal vorgenommen werden. Notice Enterasys Networks reserves the right to make changes in specifications and other information contained in this document and its web site without prior notice.
Regulatory Compliance Information Federal Communications Commission (FCC) Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to Part 15 of the FCC rules.
Electromagnetic Compatibility (EMC) This product complies with the following: 47 CFR Parts 2 and 15, CSA C108.8, 89/336/EEC, EN 55022, EN 61000‐3‐2, EN 61000‐3‐3, EN 55024, AS/NZS CISPR 22, VCCI V‐3. Compatibilidad Electromágnetica (EMC) Este producto de Enterasys cumple con lo siguiente: 47 CFR Partes 2 y 15, CSA C108.8, 89/336/EEC, EN 55022, EN 55024, EN 61000‐3‐2, EN 61000‐3‐3, AS/NZS CISPR 22, VCCI V‐3.
VCCI Notice This is a class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions. BSMI EMC Statement — Taiwan 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.
Declaration of Conformity Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: European Representative Address: Conformance to Directive(s)/Product Standards: Equipment Type/Environment: 89/336/EEC 73/23/EEC Enterasys Networks, Inc. 50 Minuteman Road Andover, MA 01810 USA Enterasys Networks, Ltd.
Enterasys Networks, Inc. Firmware License Agreement BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT, CAREFULLY READ THIS LICENSE AGREEMENT. This document is an agreement (“Agreement”) between the end user (“You”) and Enterasys Networks, Inc.
3. APPLICABLE LAW. This Agreement shall be interpreted and governed under the laws and in the state and federal courts of the Commonwealth of Massachusetts without regard to its conflicts of laws provisions. You accept the personal jurisdiction and venue of the Commonwealth of Massachusetts courts.
8. AUDIT RIGHTS. You hereby acknowledge that the intellectual property rights associated with the Program are of critical value to Enterasys and, accordingly, You hereby agree to maintain complete books, records and accounts showing (i) license fees due and paid, and (ii) the use, copying and deployment of the Program.
Contents About This Guide Who Should Use This Guide ...............................................................................................................xiii How to Use This Guide ...................................................................................................................... xiv Related Documents ........................................................................................................................... xiv Conventions Used in This Guide ......................
Rack Mounting the Switch ................................................................................................................3-9 Guidelines for Rackmount Installation .........................................................................................3-9 Attaching Brackets and Installing in Rack ...................................................................................3-9 Connecting High-Speed Stacking Cables .........................................................................
Figures 1-1 1-2 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 4-1 4-2 4-3 A-1 C3G124-24P Stackable Switch..............................................................................................1-2 C3G124-48P Stackable Switch..............................................................................................1-4 Mini-GBIC with MT-RJ Connector..........................................................................................
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About This Guide This guide provides an overview, installation and troubleshooting instructions, and specifications for the Enterasys® SecureStack C3G124‐24P and C3G124‐48P stackable PoE Gigabit Ethernet switches. For information about the Command Line Interface (CLI) set of commands used to configure and manage the C3G124‐24P or C3G124‐48P, refer to the Enterasys Networks® SecureStack C3 Configuration Guide.
How to Use This Guide How to Use This Guide Read through this guide completely to familiarize yourself with its contents and gain an understanding of the features and capabilities of the stackable Ethernet switch. A general knowledge of data communications networks is helpful when setting up the switch. This guide provides information about the following: For... Refer to...
Conventions Used in This Guide Conventions Used in This Guide The following conventions are used in this guide: Note: Calls the reader’s attention to any item of information that may be of special importance. Caution: Contains information essential to avoid damage to the equipment. Precaución: Contiene información esencial para prevenir dañar el equipo. Achtung: Verweißt auf wichtige Informationen zum Schutz gegen Beschädigungen.
Getting Help Getting Help For additional support related to the product or this document, contact Enterasys Networks using one of the following methods: World Wide Web www.enterasys.com/services/support/ Phone 1-800-872-8440 (toll-free in U.S. and Canada) or 1-978-684-1000 For the Enterasys Networks Support toll-free number in your country: www.enterasys.com/services/support/contact/ Internet mail support@enterasys.com To expedite your message, type [C-SERIES] in the subject line.
1 Introduction This chapter introduces the C3G124‐24P and C3G124‐48P PoE Gigabit Ethernet stackable switches. For information about... Refer to page... Overview 1-1 PoE (Power over Ethernet) Support 1-5 Connectivity 1-6 Management 1-7 Standards Compatibility 1-7 LANVIEW Diagnostic LEDs 1-8 Overview The C3G124‐24P and C3G124‐48P are stackable switches that can be adapted and scaled to help meet your network requirements.
Overview • Four SFP slots that provide you with the option of installing Small Form Pluggable (SFP) Mini‐GBICs for 1000BASE‐SX/LX fiber‐optic connections and 1000BASE‐T copper connections. Note: The Mini-GBIC ports cannot be active simultaneously with their corresponding 10/100/1000BASE-T ports. For example, if SFP port 24 establishes a link first on the C3G124-24P, the 10/100/1000BASE-T built-in RJ45 port 24 is not available and vice-versa.
Overview C3G124-48P Stackable Switch The C3G124‐48P (Figure 1‐2) has several types of front panel port connections, which include: • Forty‐eight RJ45 ports (10/100/1000 Mbps, 1000BASE‐T copper ports) that also support PoE for connections to network 803.2af compliant PDs (powered devices). • Four SFP slots for optional Small Form Pluggable (SFP) Mini‐GBICs for 1000BASE‐SX/ LX fiber‐optic connections and 1000BASE‐T copper connections.
Overview Figure 1-2 C3G124-48P Stackable Switch C3G124-48P 1 2 3 4 5 DB9 RS232 console port connector System status LEDs Forty-eight RJ45, 10/100/1000 Mbps, PoE ports RJ45 port status LEDS Four slots for SFP interface modules (Mini-GBICs) 6 7 8 9 10 Mini-GBIC port status LEDs Two ports for stack connections Password Reset switch AC power input connector RPS connector for SecureStack PoE redundant power supply connection High-Speed Stack Connections The switches have rear‐panel connectors for high‐sp
PoE (Power over Ethernet) Support PoE (Power over Ethernet) Support The switch is 802.3af compliant, which means it can provide power over Ethernet cable connections from its 48, RJ45 front panel connectors to PDs in the network. Power over Ethernet (PoE) refers to the ability to provide 48 Vdc power to a powered device using the same Ethernet cabling that provides data. Modern Ethernet implementations employ differential signals over twisted pair cables.
Connectivity Connectivity The switch connects to Ethernet networks or workstations through the fixed front panel RJ45 connectors and four uplink ports that support optional Mini‐GBICs. At the time of this printing, the Mini‐GBICs supported and available from Enterasys are described in Table 1‐2 below. These Mini‐GBICs meet or exceed the IEEE 802.3z‐1998 standard.
Management Management Management of the switch can be either in‐band or out‐of‐band. In‐band remote management is possible using Telnet, Enterasys Networks’ NetSight® management application, or the WebView application. Out‐of‐band management is provided through the RJ45 COM (Communication) port on the front panel using a VT100 terminal or a VT100 terminal emulator.
LANVIEW Diagnostic LEDs LANVIEW Diagnostic LEDs LANVIEW diagnostic LEDs serve as an important troubleshooting aid by providing an easy way to observe the status of individual ports and overall network operations. Refer to “Using LANVIEW” on page 4‐1 for more information.
2 Network Requirements Before installing the switch, review the requirements and specifications in this chapter concerning the following: Note: All RJ45 connectors support PoE connections from network PDs (Powered Devices). For information about... Refer to page... 10BASE-TX Network 2-2 100BASE-TX Network 2-2 1000BASE-FX Network 2-2 1000BASE-T Network 2-2 Note: The network installation must meet the requirements described in this chapter to ensure satisfactory performance of this equipment.
10BASE-TX Network 10BASE-TX Network When connecting a 10BASE‐TX segment to one of the RJ45 fixed ports on both the C3G124‐24P and the C3G124‐48P, ensure that the network meets the Ethernet network requirements of the IEEE 802.3‐2002 standard for 10BASE‐TX. Refer to the Cabling Guide for details. Note: If a port is to operate at 100 or 1000 Mbps, Category 5 cabling must be used. Category 3 cabling does not meet the 100 or 1000 Mbps specifications.
3 Hardware Installation Electrical Hazard: Only qualified personnel should perform installation procedures. Riesgo Electrico: Solamente personal calificado debe realizar procedimientos de instalacion. Elektrischer Gefahrenhinweis: Installationen sollten nur durch ausgebildetes und qualifiziertes Personal vorgenommen werden. Important Notice Read the Release Notes shipped with the switch to check for any exceptions to the supported features and operation documented in this guide.
Considerations Prior to Installation Considerations Prior to Installation When installing the switch, note the following: • Before starting the installation procedure, notify the network administrator of the installation. • Follow the installation procedures in the order as presented in this guide. • Do not connect the switch to the network until you have established the correct IP address. Required Tools A Phillips screwdriver is required to install the switch into a rack.
Installing Optional Mini-GBICs Installing Optional Mini-GBICs This section describes how to install Mini‐GBICs in any of the SFP port slots. It is recommended that the options be installed first in a new installation. Warning: Do not use optical instruments to view laser output. The use of optical instruments to view laser output increases eye hazard. Advertencia: No utilizar instrumentos opticos para ver el laser.
Installing Optional Mini-GBICs Installing a Mini-GBIC To install a Mini‐GBIC that has an MT‐RJ connector, refer to Figure 3‐1, or for a Mini‐GBIC with an LC connector, refer to Figure 3‐2, and proceed as follows: 1. Hold the Mini‐GBIC with the top side positioned as shown, and the 7‐pin edge connector facing the port slot. 2. Carefully align the Mini‐GBIC with the port slot. 3. Push the Mini‐GBIC into the port slot until the Mini‐GBIC “clicks” and locks into place.
Installing Optional Mini-GBICs Figure 3-2 Mini-GBIC with LC Connector 1 Mini-GBIC (MGBIC-LC01, -LC03, or -LC09) 2 Mini-GBIC, top side 3 7-pin edge connector (insertion side) 4 Port slot 5 Protective dust cover 6 Release tab Removing a Mini-GBIC Caution: Do NOT remove a Mini-GBIC from a slot without releasing the locking tab located at the front of the Mini-GBIC. This can damage the Mini-GBIC. The Mini-GBIC and its host device are sensitive to static discharges.
Installing the Switch on a Flat Surface 1. Attach your antistatic wrist strap (refer to the instructions in your antistatic wrist strap package) before removing the Mini‐GBIC. 2. Remove the cables connected to the Mini‐GBIC. 3. Locate the release tab under the front end of the Mini‐GBIC. For the type of Mini‐GBIC shown in Figure 3‐1, push in on the release tab as far as it will go to release the Mini‐GBIC from the port slot.
Installing the Switch on a Flat Surface Figure 3-3 Chassis Bottom, Rubber Feet Placement Á À Â Â Â Â 1 Bottom of chassis as seen when chassis is 3 Rubber feet with adhesive backing resting on its back (four) 2 Locations to install the rubber feet (four locations) 4. Remove the protective strip from the back of one rubber foot and position it on a marked location and press firmly into place. Repeat this procedure to install the remaining three rubber feet. 5.
Installing the Switch on a Flat Surface Guidelines for Flat Surface Installation Locate the switch within 152 cm (5 ft) of its power source and on a surface as shown in Figure 3‐4. If an optional redundant power system is going to be installed and connected to the 14‐pin Redundant Power Supply input connector on the rear of the switch, refer to the installation guide shipped with the redundant power system. Caution: To ensure proper ventilation and prevent overheating, leave a minimum clearance space of 5.
Rack Mounting the Switch Rack Mounting the Switch To install the switch in a 19‐inch rack, you need: • Two rackmount brackets and mounting screws shipped with the switch. • Four user‐supplied screws to attach the switch to a standard 19‐inch rack. Guidelines for Rackmount Installation The installation site must be within reach of the network cabling and meet the requirements listed below: • Appropriate grounded power receptacles must be located within 152 cm (5 ft) of the location.
Rack Mounting the Switch Figure 3-5 Attaching the Rackmount Brackets 1 Rackmount brackets 2. With the mounting brackets attached, position the switch between the vertical frame members of the 19‐inch rack as shown in Figure 3‐6. Then fasten the switch securely to the frame using four mounting screws (user supplied). Figure 3-6 Fastening the Switch to the Rack 1 Rails of 19-inch rack 3.
Connecting High-Speed Stacking Cables Connecting High-Speed Stacking Cables The stack of switches can be connected in a ring or daisy chain topology. In a ring topology all the switches are connected. The only difference in the cable connections in a daisy chain topology is that one cable is not installed. Up to 8 switches can be stacked together using high‐speed stacking cables. You can add switches and reach up to a maximum of 384 Ethernet ports per stack.
Configuring Switches in a Stack Figure 3-7 High-Speed Stacking Cable Connections Redundant Power Supply STACK UP AC LINE 100-240 VAC 50-60 Hz 0.8 A MAX STACK DOWN MAC ADDRESS Â À Â SERIAL NO. Ã Redundant Power Supply STACK UP AC LINE 100-240 VAC 50-60 Hz 0.8 A MAX STACK DOWN MAC ADDRESS Â À Â Á SERIAL NO. À Redundant Power Supply STACK UP AC LINE 100-240 VAC 50-60 Hz 0.8 A MAX STACK DOWN MAC ADDRESS Â À Â SERIAL NO.
Configuring Switches in a Stack Once installed in a stack, the switches behave and perform as a single switch. As such, you can start with a single switch and add more switches as your network expands. You can also mix different products in the family in a single stack to provide a desired combination of port types and functions to match the requirements of individual applications. In all cases, a stack of switches performs as one large product, and is managed as a single network entity.
Configuring Switches in a Stack Recommended Procedures to Install New and Existing Stacks Important The following procedures assume that all switches have a clean configuration from manufacturing. When adding a new switch to an already running stack, it is also assumed that the new switch is using the same firmware image version as other switches in the stack.
Connecting AC and PoE Power 2. 3. Use one of the following methods to complete the stack cable connections: – If the running stack uses a daisy chain topology, make the stack cable connections from the bottom of the stack to the new switch (that is, STACK DOWN port from the bottom switch of the running stack to the STACK UP port on the new switch). – If the running stack uses a ring stack topology, break the ring and make the stack cable connections to the new switch to close the ring.
Connecting AC and PoE Power Figure 3-8 Connecting AC Power and RPS ST AC K UP ST AC K DO WN 10AC LIN 0-2 50 40 E 0.8 -60 VAC Hz A MA X MAC ADD RES S SER IAL Á Re NO. du nd an t Po we r Su pp ly  À 1 AC power cord 3. 2 AC power connector 3 Connector for external redundant power supply Observe the power CPU LED (not shown) located on the front panel.
Connecting AC and PoE Power PoE Redundant Power System If you are connecting an optional PoE redundant power supply (C2RPS‐POE), refer to the installation instructions supplied with the SecureStack C2RPS‐POE. The switch is connected to a C2RPS‐POE using a C2RPS‐POE cable. Caution: The C2RPS-POE power supply does not support non-PoE compliant SecureStack switches.
Connecting to Console Port for Local Management Connecting to Console Port for Local Management This section describes how to install an RS232 DTE interface cable to a PC, a VT series terminal, or a modem to a C3G124‐24P or C3G124‐48P for out‐of‐band sessions using CLI commands.
Connecting to Console Port for Local Management Figure 3-9 DB9 Male Console Port Pinout Assignments  5 Á À 1 9 1 2 3 Pin 2, Received Data (input) Pin 3, Transmitted Data (output) Pin 5, Signal Ground All other pins not connected. 6 Connecting to an IBM or Compatible Device To connect an IBM PC or compatible device, running the VT terminal emulation, to a switch Console port (Figure 3‐10), proceed as follows: 1.
Connecting to Console Port for Local Management Figure 3-10 Connecting an IBM PC or Compatible 1 DB9 female cable connector 2 Serial interface cable 3 DB9 male Console port connector 4 DB9 female connector 5 PC with VT emulation application Connecting to a VT Series Terminal To connect a VT Series terminal to a switch Console port (Figure 3‐11), use a UTP serial interface cable terminated with a DB9 female connector and a DB25 female connector and proceed as follows: 1.
Connecting to Console Port for Local Management Figure 3-11 Connecting a VT Series Terminal 1 DB9 female cable connector 2 Serial interface cable 3 DB9 male Console port connector 4 DB25 female connector 5 PC with VT emulation application Connecting to a Modem To connect a modem to a switch modem port (Figure 3‐12), use a UTP cable terminated with a DB9 female connector and a DB25 male connector, and proceed as follows: 1.
Connecting to the Network Figure 3-12 Connecting to a Modem 1 DB9 female cable connector 2 Serial interface cable 3 DB9 male Console port 4 DB25 male connector 5 Local modem 6 Remote modem 7 PC with VT emulation application Connecting to the Network The following procedures cover the cable connections from the network or other devices to the switch RJ45 ports or any installed optional Mini‐GBIC.
Connecting to the Network Figure 3-13 Connecting a UTP Cable Segment to RJ45 Port  1 1 2 3 4 5 6 7 8 9 2 10 11 12 À Á 11 12 1 RJ45 connector 3. 2 Port 8 3 Port 8 Link/Activity LED Verify that a link exists by checking that the Link/Activity LED is ON (solid green or blinking green). Note: If the cable is connected to one of the PoE RJ45 front panel ports, solid green or blinking green also indicates that PoE power is available. If the LED is solid amber or blinking amber PoE power failed.
Connecting to the Network Figure 3-14 Four-Wire Crossover Cable RJ45 Pinouts for 10/100BASE-TX À Á RX+ 1 1 RX+ RX 2 2 RX TX+ 3 3 TX+ TX 6 6 TX Ã Â 1 RJ45 switch port 2 Other device port Figure 3-15 3 RJ45-to-RJ45 crossover cable 4 RX+/RX- and TX+/TX-connections These connections must share a common color pair.
Connecting to the Network Figure 3-16 Eight-Wire Crossover Cable RJ45 Pinouts for 10/100/1000BASE-TX À Á TX1+ 1 1 TX2+ RX1- 2 2 RX2- TX2+ 3 3 TX1+ TX3+ 4 4 TX4+ RX3- 5 5 RX4- RX2- 6 6 RX1- TX4+ 7 7 TX3+ RX4- 8 8 RX3- Â 1 RJ45 device port 2 Other device port 3680 28 3 RJ45-to-RJ45 crossover cable Figure 3-17 Eight-Wire Straight-Through Cable RJ45 Pinouts for 10/100/ 1000BASE-TX À Á TX1+ 1 1 TX2+ RX1- 2 2 RX2- TX2+ 3 3 TX1+ TX3+ 4 4 TX4+ RX3- 5 5 R
Connecting to the Network Connecting Fiber-Optic Cables to MT-RJ Ports Warning: Do not use optical instruments to view laser output. The use of optical instruments to view laser output increases eye hazard. Advertencia: No utilizar instrumentos opticos para ver el laser. El uso de instrumentos opticos para ver el laser incrementa el riesgo de perdida de la vision. Warnhinweis: Benutzen sie keinesfalls optische Hilfmittel, um die Funktion des Lasers zu überprüfen, es könnte ihr Augenlicht gefährden.
Connecting to the Network 2. Insert the MT‐RJ cable connector into the MT‐RJ connector until it clicks into place. Note: To remove the MT-RJ cable connector, press on its release tab and pull out the cable connector. Figure 3-18 Cable Connection to MT-RJ Multimode Fiber-Optic Connectors 1 Mini-GBIC MT-RJ port connector 2 MT-RJ cable connector 3 Release tab 4 Link/Activity LED 3. Plug the other end of the cable into the appropriate port on the other device.
Connecting to the Network If a link has not been established, refer to Chapter 4 for LED troubleshooting details. If a problem persists, refer to “Getting Help” on page xvi for details on contacting Enterasys Networks for support. 5. Repeat steps 1 through 4, above, until all connections have been made. Connecting Fiber-Optic Cables to LC Ports Warning: Do not use optical instruments to view laser output. The use of optical instruments to view laser output increases eye hazard.
Connecting to the Network 1. Remove the protective covers (not shown) from the front panel LC fiber‐optic port (port 46 in this example) and from the connectors on each end of the cable. Note: Leave the protective covers in place when the connectors are not in use to prevent contamination. 2. Insert the LC cable connector into the Mini‐GBIC LC connector until it clicks into place. Note: To remove the LC cable connector, press on its release tab and pull it out of Mini-GBIC LC connector.
Completing the Installation a. Verify that the device at the other end of the segment is ON and connected to the segment. b. If there are separate fiber‐optic connections on the other device, check the crossover of the cables. Swap the cable connections if necessary. c. Check that the fiber‐optic connection meets the dB loss and cable specifications outlined in the Cabling Guide for multimode cabling. To obtain this document, refer to “Related Documents” on page xiv. d.
4 Troubleshooting This chapter provides information concerning the following: For information about... Refer to page... Using LANVIEW 4-1 Troubleshooting Checklist 4-7 Using the Reset Switch 4-8 This device contains a battery that is not considered a user replaceable part. If the battery needs to be replaced, contact customer service for repair. Caution: There is a risk of explosion if the battery is replaced with an incorrect type. A used battery may be safely disposed in a municipal waste stream.
Using LANVIEW Figure 4-1 C3G124-24P LANVIEW LEDs C3G124-24P 1 2 3 4 CPU LED STACK DOWN LED STACK UP LED RPS LED for redundant power source status 5 Manager LED 6 Link/Activity/PoE LED for 10/100/1000 Mbps, RJ45 port 1 7 Link/Activity/PoE LEDs for 10/100/1000 Mbps RJ45 ports 21 through 24 8 Link/Activity LEDs for 1-Gbps Mini-GBIC ports 21 through 241 1. These Mini-GBIC ports will only establish a link when the RJ45 port equivalent is not linked on a C3G124-24P.
Using LANVIEW Figure 4-2 C3G124-48P LANVIEW LEDs 6 7 C3G124-48P 1 2 3 4 CPU LED STACK DOWN LED STACK UP LED RPS LED for redundant power-source status 5 Manager LED 6 Link/Activity LEDs for 10/100/1000 Mbps RJ45 ports 1 through 48 7 Link/Activity LEDs for 1-Gbps Mini-GBIC ports 45 through 481 1. These Mini-GBIC ports will only establish a link when the RJ45 port equivalent is not linked on a C3G124-48P. (For example, when Mini-GBIC port 45 is linked, RJ45 port 45 is deactivated.
Using LANVIEW Table 4-1 LANVIEW LED Diagnostic Indications LED Color State Recommended Action CPU Off Power disconnected. If the LED remains off after connecting AC power or DC power from an RPS, check the following: 1. Make sure there is power at the power source (AC source and RPS if applicable). 2. Replace the power cord with a known good one or check the continuity of the power cord. 3. If the switch still does not power up, the system may have a fatal error.
Using LANVIEW Table 4-1 LANVIEW LED Diagnostic Indications (continued) LED Color State Recommended Action UP Off No valid connection to switch stack down connector. 1. Make sure the switch connected to the stack down connector is powered on. 2. Replace cable with a known good one. 3. If the problem still exists, contact Enterasys Networks for technical support. Green Solid. Valid connection to switch stack down connector. None. Blinking.
Using LANVIEW Table 4-1 LANVIEW LED Diagnostic Indications (continued) LED Color State Recommended Action Link/ Activity Off 1. No link. None. 2. No activity or port in standby. None. 3. The port is deactivated because the Mini-GBIC port with the same port number is linked. None. Solid. Port is linked, but the interface is not receiving any traffic. PoE power is available. None. Blinking. Port is linked and traffic is being received or transmitted by the interface. PoE power is available.
Troubleshooting Checklist Troubleshooting Checklist If the device is not working properly, refer to Table 4‐2 for a checklist of problems, possible causes, and recommended actions to resolve the problem. Table 4-2 Troubleshooting Checklist Problem Possible Cause Recommended Action All LEDs are OFF. Loss of power. Ensure that the switch was installed properly according to the installation instructions in Chapter 3.
Using the Reset Switch Table 4-2 Troubleshooting Checklist (continued) Problem Possible Cause Recommended Action Port(s) goes into standby for no apparent reason. Loop condition detected. Verify that Spanning Tree is enabled. Refer to the SecureStack C3 Configuration Guide for the instructions to set the type of STA. Review the network design and delete unnecessary loops. If the problem continues, contact Enterasys Networks for technical support.
Using the Reset Switch To reset the switch password, refer to Figure 4‐3 and proceed as follows: Note: Notify the system manager before changing the password. 1. Press‐and‐hold the Reset switch while the switch device is operational. This change of the login password to the default password will be indicated through CLI only. 2. Logon to device management. You can now logon to the switch through the Console port and assign a new password using the command line interface (CLI). 3.
Using the Reset Switch 4-10 Troubleshooting
A Specifications This appendix provides information about the following: For information about... Refer to page... Switch Specifications A-1 Mini-GBIC Input/Output Specifications A-3 Gigabit Ethernet Specifications A-4 Console Port Pinout Assignments A-7 Regulatory Compliance A-7 Enterasys Networks reserves the right to change the specifications at any time without notice.
Switch Specifications Table A-1 C3G124-24P and C3G124-48P Specifications (continued) Item Specification C3G124-48P RJ45 ports 1 through 48 Forty-eight, 10BASE-T/100BASE-TX/1000BASE-T compliant ports with auto-sensing and auto-negotiation via RJ45 connectors. These ports also support 802.3af PoE connections. SFP ports 45 through 48 Four slots that support optional Mini-GBICs for 1000BASE-FX fiber-optic connections and 1000BASE-T copper connections.
Mini-GBIC Input/Output Specifications Table A-1 C3G124-24P and C3G124-48P Specifications (continued) Item Specification AC Input Specifications Input Voltage 100–125 Vac or 200–240 Vac with automatic power sensing AC Volt Amps C3G124-24P 539 VA C3G124-48P 583 VA Input Current C3G124-24P 4.9A at 110V, 2.5A at 220V C3G124-48P 5.3A at 110V, 2.
Gigabit Ethernet Specifications Table A-2 Mini-GBIC Input/Output Port Specifications (continued) Item Specification MGBIC-02 Provides one RJ45 copper connection that is compliant with the 1000BASE-T standard RJ45 connector. Gigabit Ethernet Specifications The following specifications for the Mini‐GBICs shown in Table A‐3 through Table A‐10 meet or exceed the IEEE 802.3z‐1998 standard. MGBIC-LC01/MGBIC-MT01 Specifications (1000BASE-SX) Table A-3 Item 62.
Gigabit Ethernet Specifications MGBIC-LC03 Specifications (1000BASE-SX) Table A-5 MGBIC-LC03 Optical Specifications Item 62.5/125 µm MMF 50/125 µm MMF Transmit Power (minimum) -9.5 dBm -9.5 dBm Transmit Power (maximum) -3 dBm -3 dBm Receive Sensitivity -20 dBm -20 dBm 10.5 dB 10.5 dB 1 Link Power Budget (Multimode Only) 1. The maximum drive distance (up to 2 km) depends on the quality of the installed multimode fiber-optic cable segment.
Gigabit Ethernet Specifications MGBIC-08 Specifications (1000BASE-ELX) Table A-9 MGBIC-08 Optical Specifications Item Transmit Power (minimum) -0 dBm, min. +2 dBm, typical Receive Sensitivity -24 dBm, min. -26 dBm, typical Maximum Input Power -3 dBm 1 Link Power Budget (Full Duplex Only) 23 dB +5 dBm, max. 28 dB, typical 1. The maximum drive distance (up to 70 km) depends on the quality of the installed single-mode fiber-optic cable segment.
Console Port Pinout Assignments Console Port Pinout Assignments The Console port is a DB9 serial communications port for local access to Local Management. Refer to Figure A‐1 for the Console port pin assignments. Figure A-1 Console Port Pinout Assignments  5 Á À 1 2 Pin 2, Received Data (input) Pin 3, Transmitted Data (output) 9 6 1 3 Pin 5, Signal Ground All other pins not connected.
Regulatory Compliance A-8 Specifications
Index Numerics H 1000BASE-FX network connections requirements for 2-2 1000BASE-T requirements for 2-2 100BASE-T requirements 2-2 10BASE-T connection 3-22 requirements 2-2 High-speed stack connections introduction to 1-4 High-speed stacking cables installation of 3-11 A AC input specifications specifications AC input A-3 AC power connecting to 3-15 C C3G124-24P stackable switch introduction to 1-1 C3G124-48P stackable switch introduction to 1-3 Cable Fiber Budget A-3 Cable specifications 1000BASE-FX net
P PD (Powered Device) introduction to 1-5 PDC (Powered Device Classification) introduction to 1-5 list of 1-5 Pinout assignments console port A-7 UTP 4-wire crossover cable 3-24 UTP 4-wire straight-through cable 3-24 UTP 8-wire crossover cable 3-25 UTP 8-wire straight-through cable 3-25 PoE (Power over Ethernet) introduction to 1-5 PoE power connecting to 3-17 Power connection AC 3-15 R Rackmount installation guidelines for 3-9 Receive/Transmit LEDs viewing of 4-2 Redundant Power Supply capability introduc
