ACCESS/A A711 L-Series Installation & Operating Instructions 09RE416
Technisonic Industries ltd. Copyright 1996, 1997, 2010, 2011 BY TiL ALL RIGHTS RESERVED Page 2-16
2.6
INSTALLATION - PIN LOCATIONS AND CONNECTIONS
The pin numbers and locations for the connectors located on the rear of the A711L ACCESS/A
Audio Control are shown in the following tables.
Bottom Connector J101 DD50P
Mating
Cable Connector:
DD50S
(50 pin Female)
J101 TX Connector Pin Assignments ACCESS/A System
Com
Mic
Key
Connection
Notes
34
Power GROUND
Main Power Ground Line
35
18
PAX 1 Mic In
36
19
PAX 2 Mic In
37
20
PAX 3 Mic In
38
21
PAX 4 Mic In
39
22
PAX 5 Mic In
1
Lighting/Dimmer Common (GND)
Dimmer Lines
2
+28VDC Auto-Dimmer Input
(This is 5V Dim input on A710/711)
Auto-Dimmer Line, Jumper to Pin
3 for auto-dimming annunciators
during night flight based on
sensing the dimmer voltage.
3
+28VDC Dimmer Input
Dimmer Line Power Input
4
Supplemental Control Line
Default = PAX ICS PTT
5
Reserved Control Line
Default = speaker volume.
40
23
6
Pilot’s Mic In
41
24
7
Co-Pilot’s Mic In
42
25
8
Hand Mic In
Emergency Hand Mic
9
Pilot’s ICS Key
Active when grounded
26
C-Pilot’s ICS Key
Active when grounded
43
Shield ground for mic lines
44
27
10
COM 7 TX Mic Out
45
28
11
COM 6 TX Mic Out
46
29
12
COM 5 TX Mic Out
47
30
13
COM 4 TX Mic Out
48
31
14
COM 3 TX Mic Out
49
32
15
COM 2 TX Mic Out
50
33
16
COM 1 TX Mic Out
17
+28VDC Power In
Main Power Input
Grounding PAX ICS PTT line (Pin 4) will make the passenger headsets LIVE, if use of a drop cord is
desired that interrupts mic line to enable PAX ICS. Alternately, this line may be keyed by the drop cord to
enable ICS, or no drop cord can be used, and the front panel VOX control can guide all ICS operation.
View from solder side of MATING CABLE CONNECTOR DD50S:
1.................................17
18…..............................33
34.................................50
