PS Engineering
PAC45A Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-045-0100
Appendix C
January 2020
Appendix C – Intercom Interconnect Wiring
Pilot Mic Audio Hi
Pilot Mic Lo
Pilot Phones Jack
P451
P452
Copilot Mic Audio Hi
Copilot Mic PTT
Copilot Mic Lo
PAX 1 Mic Audio Hi
PAX 1 Mic Lo
PAX 2 Mic Audio Hi
PAX 2 Mic Lo
27
44
PAX 3 Mic Audio Hi
PAX 3 Mic Lo
28
45
PAX 4 Mic Audio Hi
PAX 4 Mic Lo
29
46
18
37
11
PIL PHN (R)
PIL PHN (L)
PIL PHN Low
Copilot Phones Jack
17
36
10
COPIL PHN (L)
COPIL PHN (R)
COPIL PHN Low
PAX 1 (OBSVR 1) Phones Jack
30
47
13
PAX /OBS 1PHN (L)
PAX /OBS1 PHN (R)
PAX/OBS1 PHN Low
PAX 2 Phones Jack
31
48
14
PAX 2 PHN (L)
PAX 2 PHN (R)
PAX 2 PHN Low
PAX 3 Phones Jack
32
49
15
PAX 3 PHN (L)
PAX 3 PHN (R)
PAX 3 PHN Low
PAX 4 Phones Jack
33
50
16
PAX 4 PHN (L)
PAX 4 PHN (R)
PAX 4 PHN Low
Mic Audio Hi
Add'l Mic PTT
Mic Lo
23
6
40
P451
P453
P454
PAX 1 ICS-PTT
PAX 4 ICS-PTT
PAX 2 ICS-PTT
PAX 3 ICS-PTT
4
5
6
7
PAX 5 ICS-PTT
3
Swap
8
PAX 5 Mic Audio Hi
PAX 5 Mic Lo
16
25
Remote ISO
18
Pilot Mic PTT
8
7
17
34
+28V ACRFT POWER
POWER GROUND
Pilot ICS PTT
9
Copilot ICS PTT
10
+28VDC Dimmer
14
15
Public Address
Music (Left)
Music (Right)
Music Lo
15
14
34
Music
Jack
19
P453
9
PAX 1 Mic PTT
9
Remote ACK
Add'l TX position Mic or
Passenger 6 Mic
See 2.4.3.2
PAX 5 Phones Jack
PAX 5 PHN (L)
PAX 5 PHN (R)
PAX 5 PHN Low
PAX 6 Phones Jack
PAX 6 PHN (L)
PAX 6 PHN (R)
PAX 6 PHN Low
1
PAX 6 ICS-PTT
3
PA AUD OUT
PA AUD LOW
PA KEY
26
43
24
41
25
42
PRELIMINARY