3Com 8814, 8810 Hardware Maintenance, Replacing AC PSU, Removing AC PSU Switch 8807 as example

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Hardware Maintenance

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Table 75 Description of I/O module LEDs

Indicator

State description

RUN

ALM

2~6 (Switch 8807) 0~3, 6~9 (Switch 8810) 0~5, 8~13 (Switch 8814)

ON indicates I/O module failure.

OFF indicates that the I/O module has failed or it is not in position at all.

Blinking indicates that the I/O module is working normally.

OFF indicates that there is no I/O module alarm or the I/O module is not in position at all.

ON indicates that there is I/O module alarm.

On Switch 8807, I/O module 0 through I/O module 4 respectively correspond to slots 2 through 6.

On Switch 8810, I/O module 0 through I/O module 7 respectively correspond to slots 0 through 3 and 6 through 9.

On Switch 8814, I/O module 0 through I/O module 11 respectively correspond to Slots 0 through 5 and 8 through 13.

Hardware

Maintenance

Replacing AC PSU

c

CAUTION: The PSU of the Switch 8800 Family is hot-swappable.

When installing or replacing a PSU while power is being supplied, you must take care in the operation procedures and safety with electricity. Do not touch any naked wires, terminals or any parts of the product marked with a dangerous voltage label to avoid bodily injury.

Removing AC PSU (Switch 8807 as example)

Step 1: Put the power switch on the PSU from the ON position into the OFF position.

Step 2: Pull right the clamp holding the power cord connector and unplug the power cord.

Step 3: Unscrew the captive screws on the both sides of the PSU panel with a flathead screwdriver.

Step 4: Hold the handle of the PSU and pull the PSU gently out of the chassis along the guides.

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Contents 3Com Switch 8800 Family United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USAContents System Debugging Lists icon conventions that are used throughout this guide About this GuideConventions Protocols that are used to interconnect LANsDocumentation SwitchUsing the supported protocols and CLI commands RelatedPreface Product Overview8800s 3Com Switch 8810 10-Slot Chassis 3Com Switch 8814 14-Slot Chassis Switch 8807 slots Chassis and Slots SwitchSwitch 8810 slots SwitchStructure FunctionsSpecifications Switch AC Power SystemEach Ethernet port can deliver up to 15.4 W to its PD PoE entry area External PoE Power Rack 3C17509Normal Abnormal Mbus IntroductionLabel Color State Abnormal reason Role and function Fan tray panel of the Switch 8800 FamilyFabric Modules Gbps Switch FabricPanel Status LEDs for the management 10Base-T/100Base-TX port RS232/485 port specificationsCompact Flash CF slot Management PortsStatus LEDs Reset buttonConsole port specifications AUX port specificationsStatus LEDs for I/O module Status LEDs for the 360 Gbps Switch Fabric moduleGbps Switch Fabric LED Status CF status LED720 Gbps Switch Fabric specifications Gbps Switch Fabric Technical specificationsAUX port Status LEDs for the 720 Gbps Switch Fabric module Technical specifications of the Switch 8800 Family Status LEDs for the 720 Gbps Switch Fabric moduleSupported software features Software FeaturesSoftware features of the Switch 8800 Family Lacp Software features of the Switch 8800 Family Product Overview Overview O modules available to the Switch 8800 Family3C17511 module specifications Application ModulesPort LEDs on the 3C17511 module 3C17512 module specifications3C17512 2-port 10GBASE-X XFP Module Panel and LEDs 3C17511 module panel3C17513 12-port 1000BASE-X SFP Module Specifications3C17513 module has two LEDs for each port on its panel Panel and LEDs 3C17514 module panel 3C17514 module specifications3C17514 24-port 1000BASE-X SFP Module Port LEDs on the 3C17513 module3C17516 module has one LED for each port on its panel 3C17525 1-port 10GBASE-X Advanced Xenpak ModulePort LEDs on the 3C17516 module Port LEDs on the 3C17525 module 3C17526 module specifications3C17526 4-port 10GBASE-X XFP Module Panel and LEDs 3C17525 module panel1000 Mbps optical port LEDs on the 3C17526 module 3C17527 module specifications3C17527 2-port 10GBASE-X XFP Advanced Module Panel and LEDs 3C17526 module panel3C17528 module has one LED for each port on its panel 3C17528 48port 10/100/1000 BASE-T RJ-45 Module3C17531 24-port 10/100/1000BASE-T Advanced Module 3C17530 24-port 1000BASE-X SFP Advanced ModulePanel and LEDs 3C17530 module panel Port LEDs on the 3C17531 module 3C17532 module specifications3C17531 module has one LED for each port on its panel Panel and LEDs 3C17531 module panel3C17532 module has one LED for each port on their panel 3C17533 24-port 1000BASE-X SFP IPv6 ModulePanel and LEDs 3C17533 module panel 3C17536 4-port 10GBASE-X XFP Quad IPv6 Module 3C17534 module specifications3C17536 module specifications 3C17534 24-port 10/100/1000BASE-T IPv6 Module1000 Mbps optical port LEDs on the 3C17536 module 3C17538 module specifications3C17538 48-port 1000BASE-X SFP IPv6 Module Panel and LEDs 3C17536 module panelPort LEDs on the 3C17538 module Technical specifications for the 3C17542Front panel Panel and LEDs 3C17538 module panelStatus LEDs on the 3C17546 Technical specifications for the 3C17546Technical specifications for the 3CR1754766 Available cablesStatus LEDs on the 3CR1754766 Technical specifications for the 3C17548Transceiver Specifications Documents the 3Com Switch 8800 Family transceiversTransceivers Description Max Port Switch 8800 PortSwitch 8800 Available Modules DensitiesRecommendations Installation PreparationSafety General SafetyInstallation Preparation Gas Average mg/m3 Max. mg/m3 Limitation on dust content in equipment roomMechanical active material Unit Content Harmful gas limits in an equipment roomMeasure Installation ToolsPower Supply Requirements Space Requirements Required installation toolsConfirming Installation Preparation Switch InstallationInstallation Flow One Switch 8807 chassis in a cabinet Mounting the Switch User-Supplied CabinetOne Switch 8807 chassis in a cabinet Switch 8807 11U Two Switch 8807 chassis in a cabinetTwo Switch 8807 chassis in a cabinet Switch 8807 11U One Switch 8810 chassis in a cabinetOne Switch 8810 chassis in a cabinet Switch 8810 14U One Switch 8814 chassis in a cabinetCabinet One Switch 8814 chassis in a cabinet Switch 8814 17UConnecting Pgnd Wire Common grounding environment Connecting Pgnd Wire and Power CordOther grounding environment Ground the switch when ground bar is available Ground the switch via AC PE wire Connecting AC Power CordConnect AC power cord to the Switch Grounding PoE chassis Connecting PoE power cableInstall mounting ears onto the both sides of the switch Installing Fan TrayFan tray is hot swappable Contact take the fan tray out from the packing bag Lightning Protection BoxFasten the screw on top of the PoE lightning protection box Installing I/O modulesIntroduction Connecting Interface CablesConnecting console cable RJ-45 Signal Direction DB-25 DB-9AUX cable pinouts AUX cableConnecting Fiber Connecting AUX cableIntroduction to RJ-45 connector Connecting category-5 shielded cableCable Management Cable Routing RecommendationsIntertwinement or bending is allowed Cable bundling example Cable fixing example Cable bundle diameter mm Space between bundles mm Verifying InstallationInstallation checking list Tie-binding parametersSwitch Installation Environment Setting up Configuration EnvironmentSetting up System DebuggingVerifying Installation Before Powering Switch Powering and Booting the SwitchZbbtest System Debugging Troubleshooting PSU Switch Monitoring MaintenanceDescription of the LEDs on PSU Description of fan tray LEDs Indicator State descriptionReplacing AC PSU Hardware MaintenanceRemoving AC PSU Switch 8807 as example IndicatorRemove and install the AC PSU Installing AC PSU Switch 8807 as exampleInstalling the air filter of PSU Removing and cleaning the air filter of PSURequired tools Replacing and Cleaning Air Filter of ChassisRemoving and cleaning the air filter of chassis Installing the air filter of the chassisReplacing the Fan Tray Required tools Installing a ModuleRemoving a module Gently pull the module out of the slot along the guidesRecommended upgrade procedure Software UpgradeRequired cables Press Ctrl+B as prompted and the system will display Boot menuMain Menu Upgrading software through console port XModemSerial Submenu A Windows 98 operating system environment, you can performSend File dialog box Upgrading software through management Ethernet port TftpFiles using Tftp and to 0x0 if using FTP Upgrading software through management Ethernet port FTP Loading using FTP Load host program Remote and local loading using TftpInsufficient Flash memory Password LossSoftware Upgrade No response from fabric serial interface No configuration saving during I/O module rebootSwitch Monitoring and Maintenance Diagram of lightning arrester Lightning Protection SwitchInstallation procedure Installation Lightning Arrester for Network PortIs not well grounded yet Use the nylon ties to bundle the cables neatly Installation precautions
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8810, 8814, 8807 specifications

The 3Com 8814, 8810, and 8807 are renowned products from the networking giant 3Com, which played a significant role in the evolution of networking technology in the early 1990s. These devices were instrumental during a time when organizations were transitioning from traditional communication systems to more sophisticated networking solutions.

The 3Com 8814 is a multi-port networking hub designed for small to medium-sized businesses. One of its main features includes a 10Base-T Ethernet capability, allowing for fast and reliable connectivity among various devices within a local area network (LAN). The 8814 supports up to 14 connections, providing scalability for growing businesses. The hub’s ease of use is notable; it features a plug-and-play design, which aids in quick setup without requiring extensive configuration. This plug-and-play functionality, alongside its robust physical and electrical performance, made the 8814 an appealing choice for organizations looking to enhance their networking infrastructure without significant investment.

Moving on to the 3Com 8810, this device is labeled as an intelligent network switch and ushered in advancements in network management and performance. A critical element of the 8810 is its ability to support both 10/100Base-T Ethernet connections, effectively allowing mixed-speed environments. Its built-in management features, enabled by 3Com's networking technologies, offered users the ability to monitor traffic flow, manage bandwidth allocation, and configure network settings through a user-friendly interface. This switch also incorporated advanced features like VLAN support, increasing security and segmentation within networks, which proved invaluable for sophisticated networking environments.

Lastly, the 3Com 8807 represents a more versatile and high-performance switch option suited for larger networks. This model features a stackable design that allows for a broader range of scalability and redundancy. It supports both fast Ethernet and Gigabit Ethernet, ensuring that organizations can expand their network speeds as needed. The 8807 includes features for enhanced fault tolerance and link aggregation, which bolsters reliability and performance under heavy traffic loads. Its integration with 3Com's Network Management Software provided administrators with unprecedented control over their networks, empowering them to optimize performance and troubleshoot issues effectively.

Overall, the 3Com 8814, 8810, and 8807 exemplified the company's commitment to innovation in networking technology, providing businesses with the tools necessary to develop efficient, scalable, and reliable network infrastructures. Each of these devices played a crucial role in shaping the landscape of networking, emphasizing ease of use, management capabilities, and performance.
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