PS Engineering
PAC24 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-240-0008 Appendix A Rev. 8, June 2003
Appendix B Single Interconnect Wiring
a
7
Pass. 1 Mic Jack
Pass. Mic Lo
Pass. Mic Hi
Copilot PhonesJack
22
Pass. 2 Mic Jack
Pass. Mic Lo
Pass. Mic Hi
Pass. 2 Phones Jack
23
Pass. 3 Mic Jack
Pass. Mic Lo
Pass. Mic Hi
Pass. 3 Phones Jack
Ent. Audio
Ent. Audio Lo
See Note 3
1. All wiring must conform to MIL 22750 or 27500.
2. All shields should be grounded at audio panel only,
other end remains floating.
3. All phone and mic jacks must be floating from ground.
4. Speaker low must be connected as shown,
and not to other audio low.
5. To have 3 passengers in addition to copilot, connect to jacks.
OR : For expansion unit, use part number 11606 or 11606R only.
6. Pins V, Y, 21 and 24 are not used in single systems.
7. Pins M, W, and 11 are use in cases where a
Push-to-talk intercom is desired.
8. PA Mute is TTL Level logic low when transmit PTT is active.
9. For music distribution information, see Section 4.13
10. All wiring must be #24 AWG or larger, unless otherwise noted.
11. Power and Ground to be #18 AWG or larger.
For best results, power and ground wires should be twisted
together for greater noise immunity.
12. See Section 2.3.2 for details on pins selected through DIP.
See Note 11
L
ADF Receiver
ADF Audio Lo
ADF Audio Hi
12
Mkr Receiver
Mkr Audio In Lo
Mkr Audio In Hi
Com 3 Mic Key
Com 3 Lo
Com 3 Mic Audio Hi
Com 3 Audio Hi
S
5
J
Communications
Transceiver #3
14
10
N
13
P
Com 2 Mic Audio Hi
16
E
H
Com 2 Lo
Com 2 Mic Key
Com 2 Audio Hi
Com 1 Mic Audio Hi
T
3
C
11-33 VDC
3A
Airframe Ground
Lights Lo
14 V Lights Hi/28V Swap
28 Volt Lights Hi/14V swap
2
25
A
U
17
18
Unswitched Audio #2
Unswitched Audio Lo
Unswitched Input #2 Hi
Unswitched Audio #1
Unswitched Audio Lo
Unswitched Input #1 Hi
DME Receiver
DME Audio Lo
DME Audio Hi
VHF Nav 2
Nav 2 Audio Lo
Nav 2 Audio Hi
VHF Nav 1
NAV 1 Audio Lo
Nav 1 Audio Hi
Communications
Transceiver #2
Communications
Transceiver #1
Com 1 Lo
Com 1 Mic Key
Com 1 Audio Hi
Com 4 Mic Key
Com 4 Lo
Com 4 Mic Audio Hi
Com 4 Audio Hi
15
F
9
Communications
Transceiver #4
Com 5 Mic Key
Com 5 Lo
Com 5 Mic Audio Hi
Com 5 Audio Hi
R
6
K
Communications
Transceiver #5
See Note 4
Pilot PTT
19
Z
Pilot Phones Lo
Pilot Phones
D
Speaker Lo
Speaker Hi
4
1
Pilot Mic Lo
Pilot Mic PTT
Pilot Mic Audio Hi
Copilot PTT
X
20
Copilot Phones Lo
Copilot Phones
b
Copilot Mic Lo
Copilot Mic PTT
Copilot Mic Audio Hi
See Note 7
PA Mute Trigger
Pass. 4 Phones Jack
c
8
Ext Speaker Hi
Ext Speaker Lo
B
Playback/ CVR
See Note 12
Expansion power out
Expansion Input
Expansion Output
See Notes 5 & 12
V
21
24
Y
SCL (No Connect)
ICS Tie (No Connect)
ICS Tie (No Connect)
SDA (No Connect)
M
11
W
Pilot ICS PTT
Copilot ICS PTT
ICS PTT Enable
See Notes 1 & 2
See Note 7
See Note 7
See Note 6
(41 pagine)
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