PS Engineering PMA4000 Installation Manual - Manual (Page 21)

PS Engineering
PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System
Installation Manual
200-041-0002 Appendix B Rev 5, March 2007
Appendix C Unit Connector Wiring
3 A
12 or 24 VDC 13
25
P1 Bottom Unit Connector
Sub-D DB-25 Male on unit
Mating connector DB-25 Female
19
7
14
1
Passenger 1
Phones Passenger 2
Phones
13
25
14
1
Music Jack
Pass 1 Mic
Pass 2 Mic
19
18
6
Copilot PTT
Pilot PTT
22
21
9
20
8
7
15
2
Pilot Headphone Jack
Copilot Mic Jack
Pilot Mic Jack
24
12
16
3
no connection
no connection
NOTES:
1. All wire must conform to MIL-22759
or 27500. Minumum 24 gage shielded wire.
USe 20 AWG for power and ground.
2. Use 2- and 3--conductor with shield
as indicated.
3. Use insulating washers on all jacks.
4. Connect shields at unit end only
5. Music input is monaural. To connect stereo,
tie left and right channels together.
6. See Section 2.4.7 for details on tandem Volume controls.
A 10K pot is recommended (not supplied)
Connect shield to same pin as pass mic (P1, pin 3)
7. IRS Playback, 11941 only
8. Switching P2, Pin 5 to ground prevents radio and
intercom from muting the music.
9. If a Push-to-talk intercom operation is desired
Connect pins 16, 4, 17, and 3. This is only recommended
in extremely high noise conditions.
10. In 28VDC aircraft, install a 15 Ohm, 15 Watt
(701-015-1501) dropping resistor to reduce heat
generated by the speaker amplifier.
Com 1
VHF Tansceiver
18
6
24
23
10
Com 2
VHF Tansceiver
23
11 Nav
2
Nav
1
15
2
Copilot Headphone Jack
P2 Top Connector
Sub-D DB-25 Female on unit
Mating Connector DB-25 Male
5
4
17
3
Vol Hi
Pot Wiper
Vol Lo
Ground
Remote Volume Control
12
22
10
21
8
20
9
5
See Note 8
Rcvr
1
Rcvr
2
Rcvr
3
Rcvr
4
16
4
17
3
See Note 9
Power In
Ground
Pilot Phone Audio Hi
Pilot Phone Audio Lo
Copilot Mic PTT
Copilot Mic Audio Hi
Copilot Mic Audio Lo
Pilot Mic PTT
Pilot Mic Audio Hi
Pilot Mic Audio Lo
Com 1 PTT
Com 1 Mic Audio Hi
Com 1 Mic Audio Lo
Pass 1 & 2 Phones Hi
Pass 1& 2 Phones Lo
Com 2 PTT
Com 2 Mic Audio Hi
Com 2 Mic Audio Lo
Copilot Phone Audio Hi
Copilot Phone Audio Lo
Cabin Speaker Audio Hi
Music Input Hi
Music Input Lo
Pass 1 Mic Audio Hi
Pass 1 Mic Audio Lo
Pass 2 Mic Audio Hi
Pass 2 Mic Audio Lo
Com 2 Audio Hi
Com 2 Audio Lo
Nav 1 Audio in Hi
Nav 1 Audio in Lo
Nav 2 Audio in Hi
Nav 2 Audio in Lo
Com 1 Audio Hi
Com 1 Audio Lo
Unswitched Audio In 1
Unsw. Audio in 1 Lo
Unswitched Audio In 2
Unswitched Audio In 3
Unswitched Audio In 4
Unswitched Audio Lo
Music Mute
PTT ICS Enable
Pilot ICS PTT
Copilot ICS PTT
ICS PTT Lo
Note 10
15 ohm, 15 Watt
Note 6
11 IRS Playback
See Note 7