Nortel BCM50 Troubleshooting Manual

Also see for BCM50: Configuration guide Installation and maintenance guide Keycode Installation Guide Integration guide Installation and configuration guide

Contents

Chapter 3 Hardware Troubleshooting 29BCM50 Troubleshooting GuideTo test the expansion unitUse the following test to ensure the expansion unit is operating properly:1 Make sure that the BCM50 system is fully booted.2 Check the power and status LEDs on the MBM that is inserted in the expansion unit. BothLEDs must be solid green. If either LED is not solid green, a problem exists with the MBM orthe expansion unit.3 If the expansion unit has an MBM that supports extensions, go to an extension that isconnected to the MBM.4 Check for a dial tone.5 Use this extension to make a call to another extension on the system.6 If the expansion unit has an MBM that supports lines, go to an extension that has access to oneof the lines on the MBM.7 Select the line or line pool to which the line belongs.8 Check for a dial tone.9 Make a call using the line or line pool.To troubleshoot the expansion unit1 Check that the correct feature for the expansion unit is included in your installed keycode.2 Check that the expansion port is connected to the proper connector.3 Check the wiring to the MBM. Make sure that the cables are properly seated and are connectedto the correct ports with proper LED indications.4 Check that the switches on the MBM are all set to on.If the MBM is a GASM or GATM, all the switches on the right are not on.To check the MBM switches, you must remove the MBM from the expansion unit. For imoreinformation, see the BCM50 Installation and Maintenance Guide.5 Perform a firmware download to ensure that the correct version is loaded on the ASM/GASMor GATM unit.6 Use Element Manager or Telset Admin to check the programming for the lines or extensionsconnected to the MBM.7 Reboot the system to ensure that the BCM50 main unit functions correctly.8 If the programming is incorrect, use the Backup and Restore Utility to load a recent backup ofsystem programming. If a recent backup is not available, correct the programming usingElement Manager or the Telephone Administration feature.