6
20
4
5
Communications
Transceiver #1
COM 1 Audio Hi
COM 1 Low
COM 1 Mic Audio
COM 1 Mic Key
Communications
Transceiver #2
COM 2 Audio Hi
COM 2 Low
COM 2 Mic Audio
COM 2 Mic Key
36
35
34
21
Nav 1 Audio Hi
Nav 1 Low
8
VHF Nav 1
Nav 2 Audio Hi
Nav 2 Low
23
VHF Nav 2
ADF Audio Hi
ADF Low
37
ADF Receiver
DME Audio Hi
DME Low
38
DME Receiver
AUX Audio Hi
AUX Low
39
AUX (MKR)
Unswitched 1 Hi
Unsw Low
7
Unsw Audio 1
Unswitched 2 Hi
Unsw Low
22
24
Unsw Audio 2
9
Music 1 Hi
Music Low
25
Music 2 Hi
Music Low
10
Pilot Phones Hi
Pilot Phones Lo
26
40
Copilot Phones Hi
Copilot Phones Lo
Passenger Phones Hi
Passenger Phones Lo
Pilot Mic Audio Hi
Pilot Mic PTT
Pilot Mic low
2
32
17
Pilot Radio
PTT
Copilot Mic Audio Hi
Copilot Mic PTT
Copilot Mic low
1
31
16
Copilot
Radio PTT
3
18
Pass Mic Hi
Pass Mic Low
33
19
Pass Mic Hi
Pass Mic Low
44
14
Speaker Hi
Speaker low
42
12
13
27
28
External Marker lamp (White)
External Marker lamp (Blue)
External Marker lamp (Amber)
MM Sense
Marker Low
15
30
RG-58A/U Coax
Marker Antenna
11
Swap
41
43
29
14/28V Lights Hi
14/28V Low
15
Ω
15W
(28V Installation only)
11-33V
Airframe Ground
1. All shields should be grounded at audio panel only.
Other ends remain floating.
2. All phone and mic jacks must be floating from ground.
Use insulating washers available from PS Engineering.
3. All wiring to conform to MIL 22750 or 27500.
4. All Power and Ground wires must be #22 gage wire
5. External speaker loads may be required on some
transceivers. Consult manufacturer's information.
6. 28V installations require 15 ohm, 15W dropping
resistor. Not required for 14v aircraft.
7. For PMA6000B without marker, marker audio can be
interfaced through pin 39 (aux), and will
appear when MKR button pushed.
8. Marker Lamp outputs (42, 12, 13) go to +7 VDC, +/- 4VDC
when active.
9. MM Sense output (pin 27) goes high when middle
marker signal received.
10. Pins 7 and 22 are unswitched, unmuted input. Pin 7
is present in pilot headset in Fail-Safe.
11. Unit is shipped from factory for 14v lights.
Remove internal J9 for a 28v lighting bus.
See section 2.4.7.1
12. All receiver audio los connected to Pin 24
13. Shield grounds can be connected to the solder lug, and lug
connected to the aircraft ground pin.
Note 4, 6, 11
Note 10
Note 7
Note 12
Note 13
2 A
Passenger Phones Hi
Passenger Phones Lo
Passenger Headphone
Jacks
200-066-0200
Appendix
C
Rev 6, Feb. 2013