3.6.1 g
Multi Party Conference:
1.
Check that both exchange lines are functioning correctly (i.e. try tests 1 and 2 for each
line).
2.
Ensure that operations are carried out as in the functional test. Pressing ADD ON before
seizing the second line will reseize the first line. Refer to the operating instructions if
necessary.
3.
It is not possible to dial after a multi party conference has been established.
INTERCOM TESTS
3.6.20
1.
2.
3.
4.
3.6.21
1.
2.
3.
4.
3.6.22
1.
2.
3.6.23
1.
2.
ICM:
If the ICM LED doesn’t light, change the station.
If there is no dial tone, change the
board.
If there still is no dial tone change the ETSB board.
Change ESTB board.
Talk Back:
Check that station B is not in do-not-disturb (When in DND mode the LED is on).
Change
board.
Change ETSB board.
Change ESTB board.
Talk Back:
Check that station B is not in DND mode.
LED on).
Change station B.
Talk Back:
Change ESTB board for station B.
Change
board or EXPB-B/D, if equipped.
3.6.24
1.
Talk Back:
Check that station B microphone is turned on
LED flashing means the microphone is
off).
2.
3.
Change
board or EXPB-B/D, if equipped.
Check microphone connection in station B.
is polarity sensitive
4.
Change station B.
3.6.25
1.
Microphone Off:
Change station B.
3.6.26
1.
2.
Signal Call:
Change ESTB board for station B.
Change ETSB board.
3.6.27
1.
2.
Answering:
Replace ESTB boards for station B and station A.
Replace station B.
3.6.28
1.
Disconnection:
Check that the switchhook is not fouled by wires in station B. Check station B is not on
monitor (i.e. MON lamp off).
176
ISSUE 1