To Troubleshoot The Emergency Telephone On The System; To Troubleshoot The Emergency Telephone Connected To A Ctm; To Troubleshoot The Ata2; Bcm System Does Not Function - Nortel BCM200 Installation And Maintenance Manual

BCM system does not function

The BCM system can experience a complete failure for any of the following reasons:
• Power supply failure
• Incorrect power supply connections
• AC power failure

Emergency telephone does not function

If the emergency telephone is connected to the system, refer to
telephone on the system" on page
If the emergency telephone is connected to the CTM, refer to
telephone connected to a CTM" on page

To troubleshoot the emergency telephone on the system

1 Check the Power LED on the ASM8 to check that the ASM8 is receiving power.
2 Check that the emergency telephone has dial tone.
3 Check the external line and emergency telephone connections.
4
To avoid damage to the emergency telephone, connect the telephone directly to the external
line and check for dial tone.
5
Replace the MSC.

To troubleshoot the emergency telephone connected to a CTM

1
Check that the system has a CTM installed.
2 Check that there is no dial tone at the emergency telephone.
3 Replace the CTM.

ATA2 does not function

If the BCM ATA2 does not function, use these procedures to troubleshoot the problem.

To troubleshoot the ATA2

1
Make sure there is AC power connected to the ATA2 unit.
2 Make sure that the ATA2 is in the tones off mode (for data applications only).
3 Correctly configure the ATA2 telephone port for data communication.
4
Allow sufficient start-up time.
Chapter 19 System monitoring and troubleshooting
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229.
BCM200/400 4.0 Installation and Maintenance Guide
"To troubleshoot the emergency
"To troubleshoot the emergency
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