Installing the S4820T System April 2014
Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws.
Contents 1 About this Guide........................................................................................................ 5 Information Symbols and Warnings..................................................................................................... 5 Related Documents...............................................................................................................................6 2 The S4820T Switch............................................................................
5 Power Supplies........................................................................................................29 Important Points to Remember..........................................................................................................29 Installing AC or DC Power Supplies................................................................................................... 30 Replacing an AC or DC Power Supply.................................................................................
About this Guide 1 This guide provides site preparation recommendations, step-by-step procedures for rack mounting and desk mounting, inserting optional modules, and connecting to a power source. After you have completed the hardware installation and powered up the S4820T refer to the FTOS Configuration Guide for the S4820T System for software configuration information. For command line interface (CLI) information, refer to the FTOS Command Line Reference Guide for the S4820T System.
Related Documents This document provides detailed hardware installation and power-up instructions to get new systems up and running and ready for configuration. For more information about the S4820T system, refer to the following documents: Table 1.
2 The S4820T Switch This chapter contains general features, capabilities, and physical configurations that the S4820T supports. This chapter also contains a list of optional parts available for purchase. Introduction The S4820T system is a top-of-rack (ToR) switch/router product for copper connections to 10Gbps servers and 40Gbps optical uplinks to the 40Gbps switching fabric in the core.
Figure 2. S4820T I/O-Side View 1. 3. 10GBase-T Ports USB Port 2. QSFP+ Ports NOTE: The RJ-45 ports on the I/O side are labeled 0-47. When you cable these ports, be sure not to interfere with the airflow from the small vent holes above and below the ports. The S4820T switch runs the Dell Networking operating system (FTOS), providing switching, bridging, and routing functionality for transmitting data, storage, and server traffic.
Other optional components are: • Additional power supply unit • Additional fan module • Additional mounting brackets (if installing in a four-post rack or cabinet) Features The S4820T offers the following: • Forty-eight 1/10Gbps RJ-45 ports • Four fixed 40Gbps QSFP+ ports for 40Gbps transceivers • One universal serial bus (USB Type-A) port for additional file storage • On-board high-performance central processing unit (CPU) system with large memory, P2020/128 MB NOR Flash/2GB DDR III RAM.
refer to the FTOS Command Line Reference Guide for the S4820T System and the FTOS Configuration Guide for the S4820T System. LED Displays As shown in the following figures, the S4820T includes LED displays on the front and back of the chassis. The tables provide a detailed description of each LED’s meaning. Figure 3. Port LEDs 1. 3. 5. 7. Diag LED (Green) Stack LED (Blue/Green) FAN LED (Green/Red) Link LED (Green/Yellow) 2. 4. 6. 8.
Feature LED Color/Display Comment DIAG LED • • Off –— Normal operating Solid green –— System Booting or Diagnostics PSU side FAN LED • Solid green –— Fan powered and running at the expected rpm Solid red –— Fan failed PSU side • STACK LED • • • LOCATOR LED • • PSU side Solid blue –— Switch in stacking master mode Solid green –— Switch in stacking slave mode Off –— Switch in stand-alone mode Blinking blue –— Locator function is enabled Solid blue –— Locator function is disabled PSU side NOTE
Feature Activity LED LED Color/Display • Solid amber –— Link on 100M or 10M speeds • • Off –— No Link Blinking green –— Transmit/Receive is active Orderable S4820T Components You can order the S4820T system in several different configurations. You can also order optional modules and optics separately. You can order the following supported hardware components.
Site Preparations 3 The S4820T is suitable for installation as part of a common bond network (CBN). You can install the system in: • network telecommunication facilities • data centers • other locations where the National Electric Code (NEC) applies For S4820T specifications, refer to Technical Specifications. NOTE: Install the S4820T system into a rack or cabinet before installing any optional components. Site Selection Install Dell Networking equipment in restricted access areas.
Rack Mounting When you prepare your equipment rack, ensure that the rack is earth ground. Ground the equipment rack to the same ground point the power service in your area uses. The ground path must be permanent. Grounding Use the S4820T in a common bond network (CBN). Connect the grounding cables as described in Attaching the Ground Cable. Fans and Airflow The S4820T fans support two airflow options. Be sure to order the fans suitable to support your site’s ventilation.
CAUTION: Always disconnect the power cable before you service the power supply slots. CAUTION: Use the power supply cord as the main disconnect device on the AC system. Ensure that the socket-outlet is located/installed near the equipment and is easily accessible. Storing Components If you do not install your S4820T and components immediately, Dell Networking recommends properly storing the system and all optional components until you are ready to install them.
Install the Hardware 4 Always handle the S4820T and its components with care. Avoid dropping the system or its field replaceable units (FRUs). Dell Networking recommends completing the installation procedures in the order presented in this document. Before installing the switch, verify that you meet these guidelines: • You have enough clearance to the front of the switch so you can read the light emitting diodes (LEDs).
• Warranty and Support Information • Software License Agreement 1. Place the container on a clean, flat surface and cut all straps securing the container. 2. Open the container or remove the container top. 3. Carefully remove all components from the container and place it on a secure and clean surface. 4. Remove all packing material. 5. Inspect the switch and accessories for damage.
• Reverse air flow — To ensure cool air intake and to avoid hot air blow out from the I/O panel, ensure you have the necessary clearance. • Reliable earthing — Maintain reliable earthing of rack-mounted equipment. Pay particular attention to the supply connections other than the direct connections to the branch circuit; for example, the use of the power strips. • Do not mount the equipment with the Utility panel facing in the downward position. NOTE: These instructions are a condensed reference.
Installing ReadyRails — Tool-less Method Use this installation method for four-post square hole or unthreaded round hole. 1. With the ReadyRails flange ears facing outward, place one rail between the left and right vertical posts. Align and seat the rear flange rail pegs in the rear vertical post flange. In the following figure, item 3 and its extraction shows how the pegs appear in both the square and unthreaded round holes. Figure 4. Tool-less Configuration 2.
Installing ReadyRails — Two-Post Flush-Mount Configuration For this configuration, remove the castings from the front of each ReadyRails assembly.
NOTE: Retain the castings for future rack requirements. It is not necessary to remove the rear flange castings. 1. Remove the castings from the front of each ReadyRails assembly, as shown in item 1 in the following figure. Remove the two screws from each front flange ear (on the switch side of the rail) with a Torx driver. 2. Attach one rail to the front post flange with two user-supplied screws, as shown in item 2 in the figure. Figure 5. Two-post Flush-mount Configuration 3.
Installing ReadyRails — Two-Post Center-Mount Configuration 1. Slide the plunger bracket rearward until it clicks into place and secure the bracket to the front post flange with two user-supplied screws, as shown in item 1 in the following figure. Figure 6. Two-post Center-mount Configuration 2. Slide the back bracket towards the post and secure it to the post flange with two user-supplied screws, as shown in item 2 in the figure. 3. Repeat this procedure for the second rail.
NOTE: Retain the castings for future rack requirements. 1. Remove the flange ear castings from each end of the ReadyRails assemblies. Remove the two screws from each flange ear, and remove each casting with a Torx driver, as shown in item 1 in the figure. 2. For each rail, attach the front and rear flanges to the post flanges with two user-supplied screws at each end, as shown in items 2 and 3 in the following figure. Figure 7.
Attaching Switch Rails to the Switch and Mounting the Chassis You can mount the switch in 1U front-rack or 1U two-post (flush and center) configurations. Before you mount the chassis, configure the rails and attach them to the switch.
NOTE: The rack installation ears are not a suitable grounding point. CAUTION: Grounding conductors must be made of copper. Do not use aluminum conductors. NOTE: Coat the one-hole lug with an anti-oxidant compound prior to crimping. Bring any unplated mating surfaces to a shiny finish, and coat with an anti-oxidant prior to mating. Plated mating surfaces must be clean and free from contamination. To connect the ground cable to the S4820T system, follow these steps: 1.
Important Points to Remember • The unit number with the split ports must be the default (stack-unit 0). To verify the unit number, use the show system brief command. If the unit ID is different than 0, renumber it to 0 before you split the ports by using the stack-unit id renumber 0 command in EXEC mode. • The quad port must be in a default configuration before you can split it into four 10G SFP+ ports.
Power Supplies 5 The S4820T supports two hot-swappable power supplies units (PSUs) with integrated fans that provide cooling for the system. Power supply 0 (PSU0) is on the left side of the chassis; power supply 1 (PSU1) is on the right side of the chassis. Figure 9. S4820T with One AC PSU 1. PSU0 2. PSU1 The S4820T supports AC and DC power supplies with two air-flow directions (I/O to Utility and Utility to I/O). The S4820T does not support mixing PSU types.
DC PSU and an AC-R PSU with a DC-R PSU. The fan airflow direction for both the PSUs must be the same. • To view the log messages, use the show logging command. For more information, refer to the System Logs chapters of the FTOS Command Line Reference Guide for the S4820T System and FTOS Configuration Guide for the S4820T System. WARNING: Although the switch can run on one PSU, Dell Networking highly recommends using two PSUs for full redundancy and proper cooling.
NOTE: The system powers up as soon as the cables are connected between the power supply and the power source. Replacing an AC or DC Power Supply NOTE: The PSU slides into the slot smoothly. Do not force a PSU into a slot as this action may damage the PSU or the S4820T chassis. NOTE: If a PSU fails, you must completely replace it. There are no field serviceable components in the PSU. To request a hardware replacement, refer to Technical Support.
Figure 10. DC Power Connector and Wiring Block 1. Screws 2. Wiring Block 3. Power Connector To connect a S4820T DC PSU to the site’s DC power source, follow these steps: 1. Strip 1/2” of insulation from each of the power connector’s wires (red and black), as shown in the figure. 2. Insert each of the power connector’s bare wire lengths into the wiring block. Insert red into one hole and black into the other hole, as shown in the figure. 3.
NOTE: To remove the power connector from an S4820T DC PSU, squeeze together the levers on both sides of the connector. Doing so disengages the power connector’s clamps. While continuing to squeeze, pull the power connector from the DC PSU socket.
6 Install Fans The S4820T comes from the factory with one power supply unit (PSU) and two fan modules installed in the chassis, as shown in the following figure. The fan modules and the integrated fan-power supply are hot-swappable. Figure 11. S4820T Fan Modules 1. 3. Fan Module 1 Grab Handles 2. Fan Module 2 NOTE: To run the system, both slots must have operating fan units.
Installing a Fan Module To install a fan module, follow these steps: 1. Remove the fan module from the shipping box. 2. Use the grab handle to slide the module into the switch fan slot. 3. Tighten the securing screws on the sides of the fan module. To view the log messages, use the show logging command. For more information, refer to the System Logs chapters of the FTOS Command Line Reference Guide for the S4820T System and FTOS Configuration Guide for the S4820T System.
Supply Power and Power Up the System 7 Supply power to the S4820T after the chassis is mounted in a rack or cabinet. Dell Networking recommends re-inspecting your system prior to powering up. Verify that: • The equipment is properly secured to the rack. • The equipment rack is properly mounted and grounded. • The ambient temperature around the unit (which may be higher than the room temperature) is within the limits specified for the S4820T. • There is sufficient airflow around the unit.
8 Connecting the Stacking Ports (Optional) Before you make your stacking port connections, rack-mount the systems or insert them into a cabinet. NOTE: You can stack up to six S4820T switches. You cannot stack the S4820T system with other SSeries systems. 1. Insert one end of the cable into a configured port. 2. Insert the other end of the cable into a similarly configured port of the adjacent system.
• You place all the ports in a stack-group in stacking mode. NOTE: You cannot use the remaining ports in a group as data ports. You can connect the systems while they are powered down or up. Stacking ports are bi-directional. The S4820T supports stacking in either a ring or a cascade topology, as shown in the following figure.
You can use any of the RJ-45 or QSFP+ ports for stacking, provided you configure ports as stacking ports. To connect two S4820T systems in a ring, as shown in the figure, start with the S4820T at the bottom of the stack and follow these steps: NOTE: The port numbers in the following procedure are examples only. 1. Insert one end of the first cable into stack port 60 in chassis 1 (bottom). 2. Insert the other end of the same cable into stack port 52 on chassis 2 (top). 3.
You can use any of the RJ-45 or QSFP+ ports for stacking, provided you configure ports as stacking ports. To connect three S4820T systems in a ring, as shown in the figure, start with the S4820T at the bottom of the stack and follow these steps: NOTE: The port numbers in the following procedure are examples only. 1. Insert one end of the first cable into stack port 60 of chassis 1 (bottom). 2. Insert the other end of the cable into stack port 52 of chassis 2 (center). 3.
come on-line. When setting up a new set of switches in a stack, you can easily force the identification of the management unit and unit IDs by methodically supplying power to the units in your preferred sequence. • When you add a new unit to a stack, the unit is gracefully added as Unit last (the lowest unused number) with the current configuration. Attaching a new unit may cause each unit in the stack to reload. The resulting configuration file in each unit includes the awareness of the new unit.
Console Ports 9 You can access the S4820T directly through the console port at the input/output (I/O) side of the system. Accessing the RJ-45 Console Port (RS-232) The RS-232/RJ-45 console port is labeled on the PSU-side of the S8420T chassis (the I/O side), as shown in the following figure. Figure 12. Console Port 1. RJ-45 Console Port (top) and External Ethernet Management Port (bottom) NOTE: Before starting this procedure, have a terminal emulation program already installed on your PC.
Default Configuration A version of FTOS is preloaded onto the S4820T; however, the system is not configured when you power up for the first time (except for the default host name, which is FTOS). You must configure the system using the CLI.
Technical Specifications 10 Operate the system at an ambient temperature not higher than 113°C. CAUTION: Lithium Battery Caution: There is a danger of explosion if the battery is incorrectly replaced. NOTE: Replace the battery only with same or equivalent type. Dispose of the batteries according to the manufacturer's instructions. Table 6. S4820T Chassis Physical Design Parameter Specifications Height 1.71 inches (43.5 mm) Width 17.09 inches (434 mm) Depth 18.
Parameter Specifications Reliability MTBF 355,178 hours NOTE: The table below represents the DC PSU’s capabilities and does not represent S4820T operation. The power supply operates within all specified limits over the following input voltage range. Table 9. DC Input Specification Parameter Specifications Min/max input voltage range −40.5V /−48V/ −60V Maximum power consumption Typical power consumption 800 Watts 338 Watts Input power at full load −40.
• Dell Networking (PVST+) • MTU (12,000 bytes) Technical Specifications 49
Agency Compliance 11 Network Equipment Building Systems (NEBS) Compliance • Use shielded cables for ports 0 - 47. You must ground the shields at both ends. • Use only reverse airflow configurations in a NEBS-compliant installation. • Fit the power supplies and fan modules with filter kits. You must replace the fan filters regularly. • Use this equipment with an external, second-level 6kV lightning surge protective device (SPD) at the AC input of the building.
Canadian Department of Communication Statement European Union EMC Directive Conformance Statement This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility. Dell Networking cannot accept responsibility for any failure to satisfy the protection requirements resulting from a nonrecommended modification of this product, including the fitting of non-Dell option cards.
WARNING: Use the AC power cords with Dell Networking equipment only. Do not use Dell Networking AC power cords with any unauthorized hardware. This is 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.
• EN 60825-1 Safety of Laser Products — Part 1: Equipment Classification Requirements and User’s Guide • EN 60825-2 Safety of Laser Products — Part 2: Safety of Optical Fibre Communication Systems • FDA Regulation 21CFR 1040.10 and 1040.
Figure 13. The European WEEE symbol In accordance with the European WEEE Directive, electrical and electronic equipment (EEE) is to be collected separately and to be reused, recycled, or recovered at end of life. Users of EEE with the WEEE marking per Annex IV of the WEEE Directive, as shown above, must not dispose of end of life EEE as unsorted municipal waste, but use the collection framework available to customers for the return, Specifications | 47 recycling and recovery of WEEE.
12 Technical Support This chapter contains the following sections: • The iSupport Website • Accessing iSupport Services • Requesting a Hardware Replacement • Contacting the Technical Assistance Center The iSupport Website iSupport provides a range of documents and tools to assist you with effectively using Dell Networking equipment and mitigating the impact of network outages.
set the storage buffer in your terminal program to high.) • Output from the show logging eventlog [unit] command, where unit is the stack ID of the member unit that experienced the failure (This report is included as a section in the output of the show tech-support [nonpaged] command.
Requesting a Hardware Replacement To request replacement hardware, follow these steps: 1. Determine the part number and serial number of the component. To list the numbers for all components installed in the chassis, use the show inventory command. 2. Request a RMA number from Tech Support by opening a support case. Open a support case by: a. Using the Create Service Request form on the iSupport page (refer to Contacting the Technical Assistance Center). b.
