PS Engineering
PMA7000M-S Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-070-0001
Appendix C
Rev. 1, July 98
7 Appendix C Bottom Connector Interconnect
Com 1 Audio Hi
Com 1 Mic Key
Com 1 Lo
Communications
Transceiver #1
Communications
Transceiver #2
Nav 1 Audio Hi
NAV 1 Audio Lo
VHF Nav 1
Nav 2 Audio Hi
Nav 2 Audio Lo
VHF Nav 2
DME Audio Hi
DME Audio Lo
DME Receiver
Com 1 SPR Load
Com 2 SPR Load
Unswitched Input #1 Hi
Unswitched Audio Lo
Unswitched Audio #1
Unswitched Input #2 Hi
Unswitched Audio Lo
Unswitched Audio #2
Pilot Mic Audio Hi
Pilot Mic PTT
Pilot Mic Lo
Ext. Marker Lamp (Blue)
C
5
4
2
Ext. Marker Lamp (White)
Ext. Marker Lamp (Amber)
MM Sense Output
MKR Ant.
B
A
White Lamp Output
Blue Lamp Output
Amber Lamp
MM Sense
RG-58A/U Coax
PA Mute Trigger
F
D
E
18
20
1
Z
W
22
28 Volt Lights Hi
14 V Lights Hi
Lights Lo
Ground
Airframe Ground
2A (14VDC)
3A (28VDC)
11-33 VDC
9
P
R
Com 1 Mic Audio Hi
Com 2 Audio Hi
Com 2 Mic Key
Com 2 Lo
10
H
V
Com 2 Mic Audio Hi
12
13
6
14
N
19
L
Com 1 Spr Load
Com 1 Spr Load
Com 2 Spr Load
Com 2 Spr Load
16
M
T
17
Speaker Hi
Speaker Lo
3
Pilot Phones (R)
Pilot Phones (L)
Pilot Phones Lo
8
Y
To Pin 1
Top Conn.
Communications
Transceiver #3
J
K
15
Com 3 Audio Hi
Com 3 Mic Audio Hi
Com 3 Lo
Com 3 Mic Key
Mkr Audio In Hi
Mkr Audio In Lo
Ext. Mkr Audio
21
ADF Audio Hi
ADF Audio Lo
ADF Receiver
S
AUX Audio Hi
AUX Audio Lo
AUX Audio
11
Notes:
1. Pins 7, U, and X not used.
2. All shields should be grounded at audio panel only.
other end remains floating.
3. Speaker and Pilot Headphone ground returns
MUST be kept separate and connected
to pin 22.
4. All Power and Ground wires must be #18 gage wire
5. Pilot mic and headphone jacks must be isolated from ground.
6. Pin 20 connected through a 3 A breaker.
7. PA Mute is a TTL level logic output
that is pulled low when PTT active.
8. Speaker loads may be reqired on some
transceivers. Consult manufacturer's information.
9. 28V installations require a 3 A breaker.
Retrfit 28V installations may remove dropping
resistor and change breaker to 3A.
10. Interface information shown for Trimble 3100 phone only.
Ground shield at J3 only.
11. All shielded wires must be MIL 22750 or 27500.
12. For mono versions (PMA7000, PMA7000M) connect pilot headphone
as shown with 2-conductor wire.
For stereo versions (PMA7000S and PMA7000M-S) connect
pilot headphone (L) to top connector, Pin 1, using 3-conductor wire.
13. Key pin between pin 4 and 5.
A
REV
DATE:
SHEET OF
TITLE:
DOCUMENT NUMBER:
SIZE
PMA7000 Bottom Connector Wiring
120-070-0201
3
07/01/98
1
1
9800 MARTEL ROAD, LENOIR CITY TN 37922
Ext. Marker Annunciator
DWN
CKD
APR
DATE
DATE
DATE
GLP
06/30/98
Note 10
Cellphone Ring
Cellphone Tip
V
W
M
Trimble
3100 D
J3
Pilot PTT
See Note 4, 9
See Note 7
See Note 4, 9
See Note 3
See Note 8
CAJ
06/30/98
07/01/98
GLP
See Note 12
Bottom Connector, J1