ACCESS/A – A740 INSTALLATION MANUAL
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A740 Interconnect Patch Bay
TX Connector J4001 through J4004 DA15S
Mating Cable Connector: DA15P (15 Pin Male)
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J4001
J4004
Connector Pin Assignments
Alerting Connector
Low
High
Connection
Notes
1
Possible
alerting connections
2
Alert 1 (in)
Active when grounded. Accepts
+28VDC.
3
Alert 2 (in)
Active when grounded. Accepts
+28VDC.
4
Alert 3 (in)
Active when grounded. Accepts
+28VDC.
5
Alert 4 (in)
Active when grounded. Accepts
+28VDC.
7
Alert 5 (in)
Active when grounded. Accepts
+28VDC.
6
Alert 6 (in)
Active when grounded. Accepts
+28VDC.
Tied to pin 2 on J1012 (Tape Plug) for
common ICS call connections.
8
Shield Ground (Chassis) if Required
Airframe ground
Possible
audio connections
9
1
Aux Audio #1
see notes below.
10
2
Aux Audio #2
see notes below
11
3
Aux Audio #3
see notes below
12
4
Aux Audio #4
see notes below
13
5
Aux Audio #5
see notes below
14
6
Do not use for audio, due to line
connected to J1012, this is a
signaling connection ONLY.
15
7
Aux Audio #6
see notes below
