Ericsson LBI-39055A, Руководство по обслуживанию

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LBI-39055
24
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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:
❏
Power-down the Audio Tower and swap the #1
board with the #2 board.
❏
Power-up the Audio Tower.
❏
Repeat steps 1, 2 and 3.
❏
Power-down the Audio Tower and swap the #1
board with the #2 board.
❏
Power-up the Audio Tower.
5. Completion
❏
Remove all test connections and reconnect the
RJ-11 modular plugs from the CEC/IMC to the
LINE A
and
LINE B
modular jacks on the Audio
PA Board (#1).
HIGH-LEVEL TESTS
The following high-level tests verify basic operational
status of control data and audio interfaces between the C3
Maestro console and the CEC/IMC. The procedures assume
all equipment has been interconnected and set-up in
accordance with the previous instructions presented in this
manual.
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, Set-Up and
Troubleshooting
maintenance manual, LBI-38938. The
console-to-CIM link up/down status can also be viewed via
the CEC/IMC Manager's (MOM PC's) "
SYSTEM
DISPLAY
" screen.
Upon restoration of a failed console-to-CIM control
data link a "
Communications error condition cleared
"
message is displayed.
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 send and receive audio. If necessary, refer to the C3
Maestro console operator's manual. Refer to LBI-38938 for
troubleshooting information.
If the console 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 Inc.
Private Radio Systems
Mountain View Road
Lynchburg, Virginia 24502
1-800-528-7711 (Outside U.S.A., 804-528-7711)
Printed in U.S.A.