3Com 8810 Switch Monitoring Maintenance, Troubleshooting PSU, Description of the LEDs on PSU

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SWITCH MONITORING AND

6 MAINTENANCE

Monitoring the Switch Although the Switch 8800 Family has undergone a comprehensive and strict factory test before delivery, there might be some fault occurring due to improper installation. This chapter describes how to troubleshoot the Switch 8800 Family.

Troubleshooting Console If the system is normal after the Switch is powered on, the booting information Terminal will be displayed on the Console terminal. If the configuration system has failed,

the Console terminal may give illegible output or nothing at all.

1The terminal gives no displays after the Switch is powered on. In this case, you should check if:

■The power system is working normally.

■The fabric is working normally.

■The Console cable has been connected to the Console port on the fabric.

If no problem has been found in the above checking, the symptom is very likely caused by the errors listed below.

■The Console cable is not connected to the right serial port, that is, the port in use is not the one configured on the terminal.

■There are Console terminal parameter errors. (According to the parameter setting requirements, you should set the baud rate to 9600, data bits to 8, parity to None, stop bits to 1, flow control to None, and select VT100 as terminal emulation.)

■The Console cable is not in good condition.

2The terminal gives illegible characters.

This symptom is very likely caused by a Console terminal setting error. In this case, check that you have set the baud rate to 9600, data bits to 8, parity to None, stop bits to 1, flow control to None, and select VT100 as terminal emulation.

Troubleshooting PSU

Table 73 Description of the LEDs on PSU

LED	Description

INPUT	It keeps ON if the power input is normal and the PSU switch is at ON position. It
	keeps OFF if the power input has failed or if there is no power input at all.
OUTPUT	It keeps ON if the power output is normal and OFF in any other cases.
FAIL	It keeps ON if the PSU has failed and OFF in any other cases.

Following are the PSU faults that likely appear and the methods used for problem isolation.

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Contents 3Com Switch 8800 Family United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USAContents System Debugging Conventions About this GuideProtocols that are used to interconnect LANs Lists icon conventions that are used throughout this guideUsing the supported protocols and CLI commands SwitchRelated Documentation8800s Product OverviewPreface 3Com Switch 8810 10-Slot Chassis 3Com Switch 8814 14-Slot Chassis Switch 8807 slots Chassis and Slots SwitchSwitch 8810 slots SwitchStructure FunctionsEach Ethernet port can deliver up to 15.4 W to its PD AC Power SystemSpecifications Switch PoE entry area External PoE Power Rack 3C17509Label Color State Abnormal reason Mbus IntroductionNormal Abnormal Role and function Fan tray panel of the Switch 8800 FamilyPanel Gbps Switch FabricFabric Modules Compact Flash CF slot RS232/485 port specificationsManagement Ports Status LEDs for the management 10Base-T/100Base-TX portConsole port specifications Reset buttonAUX port specifications Status LEDsGbps Switch Fabric LED Status Status LEDs for the 360 Gbps Switch Fabric moduleCF status LED Status LEDs for I/O module720 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 moduleSoftware features of the Switch 8800 Family Software FeaturesSupported software features Lacp Software features of the Switch 8800 Family Product Overview 3C17511 module specifications O modules available to the Switch 8800 FamilyApplication Modules Overview3C17512 2-port 10GBASE-X XFP Module 3C17512 module specificationsPanel and LEDs 3C17511 module panel Port LEDs on the 3C17511 module3C17513 module has two LEDs for each port on its panel Specifications3C17513 12-port 1000BASE-X SFP Module 3C17514 24-port 1000BASE-X SFP Module 3C17514 module specificationsPort LEDs on the 3C17513 module Panel and LEDs 3C17514 module panelPort LEDs on the 3C17516 module 3C17525 1-port 10GBASE-X Advanced Xenpak Module3C17516 module has one LED for each port on its panel 3C17526 4-port 10GBASE-X XFP Module 3C17526 module specificationsPanel and LEDs 3C17525 module panel Port LEDs on the 3C17525 module3C17527 2-port 10GBASE-X XFP Advanced Module 3C17527 module specificationsPanel and LEDs 3C17526 module panel 1000 Mbps optical port LEDs on the 3C17526 module3C17528 module has one LED for each port on its panel 3C17528 48port 10/100/1000 BASE-T RJ-45 ModulePanel and LEDs 3C17530 module panel 3C17530 24-port 1000BASE-X SFP Advanced Module3C17531 24-port 10/100/1000BASE-T Advanced Module 3C17531 module has one LED for each port on its panel 3C17532 module specificationsPanel and LEDs 3C17531 module panel Port LEDs on the 3C17531 modulePanel and LEDs 3C17533 module panel 3C17533 24-port 1000BASE-X SFP IPv6 Module3C17532 module has one LED for each port on their panel 3C17536 module specifications 3C17534 module specifications3C17534 24-port 10/100/1000BASE-T IPv6 Module 3C17536 4-port 10GBASE-X XFP Quad IPv6 Module3C17538 48-port 1000BASE-X SFP IPv6 Module 3C17538 module specificationsPanel and LEDs 3C17536 module panel 1000 Mbps optical port LEDs on the 3C17536 moduleFront panel Technical specifications for the 3C17542Panel and LEDs 3C17538 module panel Port LEDs on the 3C17538 moduleTechnical specifications for the 3CR1754766 Technical specifications for the 3C17546Available cables Status LEDs on the 3C17546Status LEDs on the 3CR1754766 Technical specifications for the 3C17548Transceivers Documents the 3Com Switch 8800 Family transceiversTransceiver Specifications Switch 8800 Available Modules Switch 8800 PortDensities Description Max PortSafety Installation PreparationGeneral Safety RecommendationsInstallation Preparation Mechanical active material Unit Content Limitation on dust content in equipment roomHarmful gas limits in an equipment room Gas Average mg/m3 Max. mg/m3Power Supply Requirements Space Requirements Installation ToolsRequired installation tools MeasureInstallation Flow Switch InstallationConfirming Installation Preparation 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 17UOther grounding environment Connecting Pgnd Wire and Power CordConnecting Pgnd Wire Common 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 cableFan tray is hot swappable Installing Fan TrayInstall mounting ears onto the both sides of the switch 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 modulesConnecting console cable Connecting Interface CablesRJ-45 Signal Direction DB-25 DB-9 IntroductionAUX cable pinouts AUX cableIntroduction to RJ-45 connector Connecting AUX cableConnecting category-5 shielded cable Connecting FiberIntertwinement or bending is allowed Cable Routing RecommendationsCable Management Cable bundling example Cable fixing example Installation checking list Verifying InstallationTie-binding parameters Cable bundle diameter mm Space between bundles mmSwitch Installation Setting up Setting up Configuration EnvironmentSystem Debugging Environment Verifying Installation Before Powering Switch Powering and Booting the SwitchZbbtest System Debugging Description of the LEDs on PSU Switch Monitoring MaintenanceTroubleshooting PSU Description of fan tray LEDs Indicator State descriptionRemoving AC PSU Switch 8807 as example Hardware MaintenanceIndicator Replacing AC PSURemove and install the AC PSU Installing AC PSU Switch 8807 as exampleInstalling the air filter of PSU Removing and cleaning the air filter of PSURemoving and cleaning the air filter of chassis Replacing and Cleaning Air Filter of ChassisInstalling the air filter of the chassis Required toolsRemoving a module Installing a ModuleGently pull the module out of the slot along the guides Replacing the Fan Tray Required toolsRequired cables Software UpgradeRecommended upgrade procedure 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 TftpSoftware Upgrade No response from fabric serial interface Password LossNo configuration saving during I/O module reboot Insufficient Flash memorySwitch Monitoring and Maintenance Diagram of lightning arrester Lightning Protection SwitchIs not well grounded yet Installation Lightning Arrester for Network PortInstallation procedure Use the nylon ties to bundle the cables neatly Installation precautions

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