ACCESS/A – A740 INSTALLATION MANUAL
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A740 Interconnect Patch Bay
RX Connector J2001 through J2004 DC37S
Mating Cable Connector: DC37P (37 Pin Male)
J2001J
2004
Connector Pin Assignments
RX Connector
Low
High
Connection
Notes
20
1
ICS Node
ICS Tie Line Between Units
21
2
Can be used for additional
Shield grounds, if required.
Sum Line need NOT brought out to
these pins, but routed to an A770
eyebrow unit ONLY! Tied to ground at
A740.
22
3
Direct Input
Unswitched Direct Input
4
Shield Ground
Airframe ground
23
5
Music R Audio (supports
BRIDGE OUTPUT!)
Switch #4 Pin 23 is common
Right-hand-most RX switch.
24
6
Music L Audio (supports
BRIDGE OUTPUT!)
Switch #4 Pin 24 is common
Right-hand-most RX switch.
25
7
NAV 6 RX Audio
Switch #3
26
8
NAV 5 RX Audio
Switch #3
27
9
NAV 4 RX Audio
Switch #2
28
10
NAV 3 RX Audio
Switch #2
29
11
NAV 2 RX Audio
Switch #1
30
12
NAV 1 RX Audio
Switch #1 Left-hand-most RX switch
31
13
COM 7 RX Audio
Not Used If PA Enabled.
Right-hand-most TX switch.
32
14
COM 6 RX Audio
33
15
COM 5 RX Audio
34
16
COM 4 RX Audio
35
17
COM 3 RX Audio
36
18
COM 2 RX Audio
37
19
COM 1 RX Audio
Left-hand-most TX switch
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