Avaya BCM1000 Installation Manual download pdf (Page 191)

Chapter 14 Troubleshooting 165

Installation and Maintenance Guide

If the emergency telephone is connected to the CTM, use the following procedure:

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.

ATA 2 does not function

If the Business Communications Manager ATA 2 does not function. Follow these steps to

troubleshoot the problem.

1 Make sure there is ac power connected to the ATA 2 unit.

2 Make sure that ATA 2 is in the Tones OFF mode. (For Data Applications only.)

3 Correctly configure the ATA 2 telephone port for data communication.

4 Allow sufficient start up time.

5 Assign the prime line.

6 Assign a ringing line if required, for example, auto-answer modems, FAX).

Checking the wiring

Check the following connections:

• ATA 2 to the terminal.

The resistance must be 200 ohms or less for data applications and 1,300 ohms or less for voice

applications.

• Business Communications Manager hardware to ATA 2.

The wiring must be equivalent to 800 m of 0.5 mm wire (2,600 ft. of 24 AWG) or less. Do not

use bridge taps and loading coils between the Business Communications Manager hardware

and Business Communications Manager ATA 2.

• External line to the Business Communications Manager system.

Ensure the external line is correctly connected to the BCM1000 and make sure there is dial

tone.

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Avaya BCM1000 Installation Manual Page 191