
LBI-39055
❏Send operator headset mic audio to the LINE B output by typing the following command:
<F2> 2001 <Enter>
❏Speak into the headset's mic and verify the audio signal is now present on the LINE B balanced output. Maximum signal level is approximately 6
❏Turn the operator headset
<F2> 6330 <Enter>
<F2> 2000 <Enter>
❏Verify mic audio is no longer on the LINE B balanced output.
Successful completion of this tests verifies basic operation of the following:
∙operator headset mic input circuitry
∙Line A and B output circuitry
∙PC and Logic Board's ability to control the cross- point audio matrix switches on the Audio Matrix Board
4.Test Audio PA Board #2 (if installed)
If a second Audio PA Board is installed in the Audio
Tower, the following procedure can be used to test it:
❏
❏
❏Repeat steps 1, 2 and 3.
❏
❏
5.Completion
❏Remove all test connections and reconnect the
LINE A and LINE B modular jacks on the Audio PA Board (#1).
HIGH-LEVEL TESTS
The following
Control Data Link
The C3 Maestro console and the CIM within the CEC/IMC periodically poll each other over the control data link. If this link is not operating correctly the console will display a "Com Error: link down @xxxxx bps" error message on the PC's video display monitor. This link must be up (operating) before any dispatch operation can occur. For troubleshooting information, refer to the CEC/IMC Digital Audio Switch Installation,
Upon restoration of a failed
Audio Links
After determining the control data link is operating by the lack of an error message, audio link operation can be tested. To test, program a module with a test group and then place a call to and from a test radio set the same group. Also test the operation of all unselect speakers. Verify the console can sendand receive audio. If necessary, refer to the C3 Maestro console operator's manual. Refer to
If the console is is equipped with a Call Director, test Call Director patch operation by patching a radio to a telephone line. See the operator's manual for details.
Ericsson GE Mobile Communications Inc.
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