Nortel Networks BM450 manual Hardware Troubleshooting, Troubleshooting the BCM450 hardware

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Chapter 3

Hardware Troubleshooting

Use the tasks in this chapter to troubleshoot problems related to the BCM450 hardware components.

Navigation

•Troubleshooting the BCM450 hardware on page 19

•Power on self test on page 27

•Testing basic hardware functionality on page 28

•Monitoring the boot process on page 34

Troubleshooting the BCM450 hardware

Complete the following tasks, in the order shown below, to troubleshoot some of the common problems that you may encounter with the BCM450 hardware:

•Check the power source on page 19

•Check LED indicators on page 19

•Check the wiring connections on page 24

•Verify the keycodes on page 24

•Restart or shut down the system on page 25

Check the power source

Begin troubleshooting the hardware by checking the power source:

•check the connection between the power supply and the main unit

•check the connection from the power supply to the electrical outlet

Check LED indicators

After checking the power source, check the LED indicators. This section describes the operation of the BCM450 system LEDs:

•System status LEDs on page 20

•LAN port LEDs on page 21

•Media bay module LEDs (expansion units only) on page 21

•DTM LEDs on page 22

•BRIM LEDs on page 24

BCM450 Troubleshooting Guide

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Contents BCM450 Troubleshooting Guide Copyright 2008 Nortel Networks, All Rights Reserved Task List BCM450 Troubleshooting GuideNN40160-700 Task ListContents Contents Chapter Advanced TroubleshootingChapter Understanding system messages Chapter Contacting Technical Support Organization IntroductionPurpose AudienceAcronym Description AcronymsIntroduction List of acronymsIntroduction List of acronyms Symbols and conventions used in this guide Related publications Introduction NN40160-700 Navigation Initial TroubleshootingProper installation and routine maintenance Network configurationLogical connections Device configuration informationInitial Troubleshooting Normal behavior on your networkInitial Troubleshooting Initial Troubleshooting NN40160-700 Check LED indicators Hardware TroubleshootingTroubleshooting the BCM450 hardware Check the power sourceSystem status LEDs states and descriptions Hardware TroubleshootingStatus Description LAN port LED locationsMBM LED descriptions Power Status DescriptionStatus Descriptions DTM LED functionsTo verify the keycodes using Element Manager Check the wiring connectionsVerify the keycodes Restart or shut down the system To verify the keycodes using TelsetTo restart the system Reset functionsFunction Description Impact Hardware reset functions Power on self testViewing the Post log file Example Bootloader.log file with no errors Testing basic hardware functionalityTo troubleshoot the main unit To test the main unitTo test the expansion unit To troubleshoot the expansion unit Testing an MBMTroubleshooting the FEM Determining why an MBM does not appear in Element ManagerTo determine why the ATA 2 does not function To check the ATA2 wiring To determine why there is no dial tone at the ATA2Reset to factory settings Reset levels To perform a Level 1 reset configuration reset Monitoring the boot processTo perform a Level 2 reset software reset Hardware Troubleshooting Boot process with failed or missing memory Check the programming of lines and phones Software TroubleshootingVerify the software version Verify the keycodesTrunk/Line data Software TroubleshootingCheck line programming To check line programmingSoftware Troubleshooting Trunk/Line Data main panel Sheet 2 Properties Software Troubleshooting Trunk/Line Data main panel Sheet 3Line must be equipped with disconnect supervision from Properties line settings Sheet 1Trunk mode Dia l modeSignaling Software Troubleshooting Properties line settings Sheet 2Preferences Auto privacy Preferences details fields for lines Sheet 1Answer mode Restrictions RestrictionsRestoring system data To restore data from an archiveAssigned DNs Select Components to Restore panel opens To restore the factory configurationTo view the BCM450 software inventory Obtaining software updatesVerify the software inventory Viewing the inventory of BCM450 softwareTo obtain updates from the Nortel Technical Support Web Software Troubleshooting NN40160-700 Troubleshooting example Advanced TroubleshootingExample 1 Cannot dial out from an analog trunk Advanced Troubleshooting Example 2 Cannot dial out from a SIP or H323 VoIP trunk Advanced Troubleshooting Advanced Troubleshooting Advanced Troubleshooting Advanced Troubleshooting Example 3 IP set is not registering with the BCM450 Troubleshooting example 3b Troubleshooting example 3aAdvanced Troubleshooting Example 5 Cannot dial out from digital trunk Troubleshooting example Advanced Troubleshooting Advanced Troubleshooting Advanced Troubleshooting Advanced Troubleshooting Troubleshooting example Select Configuration Resources Telephony Resources System is not processing calls Recovery treesStart-up profile fails Recovery treesStart-up profile fails Cannot access BCM450 through Element ManagerCannot access BCM450 through Element Manager NN40160-700 BCM450 shuts down unexpectedly Unexpected shutdown BCM450 Troubleshooting GuideRecovery trees NN40160-700 Applications available on BCM450 web Application User Administrator User ApplicationsDownloading Software Downloading software from the BCM450 webpageDownloading Software Applications available on BCM450 web To download software from the BCM450 webpageDownloading Software Downloading software from the Nortel web siteDownloading Software NN40160-700 Service Management Troubleshooting ToolsStatus and Metrics Utilities Command Line InterfaceAccessing the CLI Troubleshooting ToolsAccessing the CLI through the OAM port Accessing the CLI through a serial connectionUsing the Configuration CLI Using the Maintenance CLI To set Release Reasons Alarms, logs, and trapsUnderstanding system messages Reporting for dropped callsUnderstanding system messages Release reasons Partner Bulletins Useful Troubleshooting LinksKnowledge and Solution Engine Using the Knowledge and Solution EngineUseful Troubleshooting Links To use the Knowledge and Solution EngineHow do I back up the database? Frequently Asked QuestionsBackup, restore, and reset operations To perform a backupTo restore data from the BCM450 How do I restore the BCM450 from a previous backup?Frequently Asked Questions Recovering a lost password Password protectionCompleting a warm or cold reset How do I recover a lost password for the BCM450?How do I view Alarms? Can I acknowledge and clear them? Fault managementTo view an alarm How do I capture the logs from the BCM450? To acknowledge an alarmUsing the Element Manager to transfer log files System and status informationUsing the BCM450 Web Page to transfer log files Capturing the current configuration How do I capture the current BCM450 configuration?Viewing specific process states How do I find the BCM450 system health?Viewing the system health How do I show specific process states?Viewing the system ID and serial number Connectivity problemsVerify the current software revision How do find the BCM450 System ID and Serial Number?Can I modify the IP address of the OAM port? What is an Ethernet loop, and how do I avoid creating one?What are the default IP addresses of the BCM450 ports? IP addressesFrequently Asked Questions Frequently Asked Questions NN40160-700 Gathering critical information Contacting Technical SupportGetting Help from the Nortel Web site Getting help over the phone from a Nortel Solutions CenterContacting Technical Support Getting help through a Nortel distributor or reseller Contacting Technical Support NN40160-700