Sandel ST3400H HeliTAWS, Installation Manual

Page: 36 / 112

PIN # Name Signal Type (dependent on system configuration)
26
Airdata A
In
A429* A side 429
(R422*) + side 422
(R232) Ground side
(Ana) DC+
11 Airdata B
In
A429* B side 429
(R422*) - side 422
(R232) Rx
(Ana) DC-
41 Reserved Do not connect
27 Reserved Do not connect
12
Spare Discrete 1
In n/c
Discrete Programmable OPEN/GND or OPEN/+28
42 429-1 Out A
Out
A429 A Side - Alert output to FDR - High Speed (100Kbps)
28 429-1 Out B
Out
A429 B Side - Alert output to FDR - High Speed (100Kbps)
13 RS232TxD
Out Spare
R232
43
Air Data Valid
In
Discrete Programmable OPEN/GND or OPEN/+28
29 BC In
In
Discrete Programmable OPEN/GND or OPEN/+28
14 Gear In
In
Discrete Programmable OPEN/GND or OPEN/+28
44
NVIS Ctrl
In
Discrete OPEN/GND. GND turns NVIS OFF unless sensing is
reversed in SYSTEM maintenance page, when GND
turns NVIS ON.
30 Spare Sw Discr
In
Discrete OPEN/GND
15
Radalt Fail In
In
Discrete >9VDC nom = Radalt Valid
Outside View (Mating Connector)
15
30
44
14
29
43
13
28
42
12
27
41
11
26
40
10
25
39
9
24
38
8
23
37
7
22
36
1
16
6
21
35
5
20
34
4
19
33
3
18
32
2
17
31
82046-IM-K ST3400H INSTALLATION MANUAL Page 4-9