PS Engineering
PAC45 Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-045-0100
Page 2-13
January 2020
P453
P454
1
NC
1
PA KEY
2
NC
2
COPILOT CVR/Low Level
SPR out (-0103 only)
3
PAX 5 ICS PTT
3
PAX 6 ICS PTT
4
PAX1 ICS PTT
4
NC
5
PAX2 ICS PTT
5
NC
6
PAX3 ICS PTT
6
NC
7
PAX4 ICS PTT
7
TEL MIC AUD
8
NC
8
SWAP
9
PAX 1 MIC KEY
9
ACKNOWLEDGE
10
SERIAL TX3 -
10
COPILOT HP RT
11
SERIAL RX2 -
11
PILOT HP RT
12
SERIAL RX2 +
12
PILOT CVR OUT
13
PAX 1 HP RT
13
UNSW 4 AUD IN
14
PAX 2 HP RT
14
UNSW 3 AUD IN
15
PAX 3 HP RT
15
NC
16
PAX 4 HP RT
16
PAX 5 MIC AUD
17
NC
17
TEL AUD IN
18
NC
18
REMOTE ISO
19
SERIAL TX3+
19
COPILOT HP LOW
20
SERIAL RX3-
20
PILOT HP LOW
21
SERIAL RX3+
21
CVR LOW
22
SERIAL 2 LOW
22
UNSW 4 AUD LOW
23
PAX HP LOW
23
UNSW 3 LOW
24
SERIAL 2 LOW
24
NC
25
PAX HP LOW
25
PAX 5 MIC AUD LOW
26
NC
26
TEL AUD LOW
Table 2-3: PAC45D Pin Assignments
NOTE: Serial TX 3 for Mission Observer Control Head
2.7 Wiring Checkout
After wiring is complete, verify power is ONLY on pin 16 &17 of J451and airframe ground on pin
34. Failure to do so will cause serious internal damage and void PS Engineering's warranty.
PRELIMINARY