Sandel ST3400 - Traffic Input and System Uploading

4.6 Connector P2
For electrical characteristics, see the table in section 4.9 by referencing the signal
type indicated in italics. Signal types enclosed in parentheses indicate
functionality that is reserved.
Pin # Name Signal Type (dependent on maintenance page selection)
16
Inverter Exc.
In Note: May be same or different than P2-16 inverter source.
Inverter 26Vac Excitation for items on connector P1
1
Shield Gnd
31
FMS2A Primary
In
A429 A side 429
(RS422) + side 422
(RS232) Ground side
17
FMS2B Primary
In
A429 B side 429
(RS422) - side 422
(RS232) Rx
2
TCAS A
In
A429 A side 429
(RS232) Ground Side
32
TCAS B
In
A429 B side 429
(RS232) Rx
18
Decision Height
Discrete
In
Discrete Valid Discrete Open/Gnd or Open/+28VDC
3
Hdg2A
In
A429 A side 429
A407 Synchro X [Z grounded]
33
Hdg2B
In
A429 B side 429
A407 Synchro Y [Z grounded]
19
Hdg2 Valid
In
Discrete Valid Hdg Analog, Note: Not used when 429 is data source.
4
ADF2A
In
A429 A side 429
DC Sin DC Sine
A407 Synchro X [Z grounded]
34
ADF2B
In
A429 B side 429
DC Cos DC Cosine
A407 Synchro Y [Z grounded]
20
ADF2 DC Ref
In
ADF Ref ADF DC, Note: Not used when 429 or XYZ is data source.
5
ADF2 Valid
In
Discrete Valid ADF Discrete, Note: Not used when 429 is data source
35
Nav2A
In Note: For composite inputs see P2-42
A429 A side 429
(RS422) + side 422
(RS232) Ground side
21
Nav2B
In Note: For composite inputs see P2-42
A429 B side 429
(RS422) - side 422
(RS232) Rx
4-6 ST3400 INSTALLATION MANUAL 82002-IM-L