GTS 8XX/GPA 65 Installation Manual
Page 4-13
190-00587-00
Revision 4TP
4.6.2 Inputs From Gyros
Pin Name
Connector
Pin
I/O
HEADING X
P8002
41
In
HEADING LO (GROUND)
P8002
42
--
HEADING Y
P8002
44
In
HEADING LO (GROUND)
P8002
45
--
HEADING Z (GROUND)
P8002
60
In
HEADING LO (GROUND)
P8002
61
--
Inputs heading information from a directional gyro.
3-wire synchro magnetic heading input, with HEADING Z grounded. Index reference is 0° as specified
by ARINC 407.
Frequency:
400Hz ± 10%
Voltage:
11.8 Vrms nominal, 13.0 Vrms maximum
Input Impedance:
>10 k
Ω
Resolution:
± 0.1° or better
Accuracy:
± 2°
4.6.3 Audio
Pin Name
Connector
Pin
I/O
ALERT AUDIO OUT HI
P8002
58
Out
ALERT AUDIO OUT LO
P8002
59
Out
4.6.4 Active Low Discrete Inputs
Pin Name
Connector
Pin
I/O
AIR/GROUND* P8002
6
In
TRAFFIC DISPLAY 1 STATUS VALID*
P8002 8 In
TRAFFIC DISPLAY 2 STATUS VALID*
P8002 9 In
GEAR DOWN AND LOCKED*
P8002 10 In
TA INHIBIT* 1
P8002 11 In
TA INHIBIT* 2
P8002 12 In
SELF TEST INHIBIT PROGRAM*
P8002 14 In
TA INTRUDER DISPLAY LIMIT 16 PROGRAM *
P8002
15
In
TA INTRUDER DISPLAY LIMIT 8 PROGRAM *
P8002
16
In
TA INTRUDER DISPLAY LIMIT 4 PROGRAM *
P8002
17
In
TA INTRUDER DISPLAY LIMIT 2 PROGRAM *
P8002
18
In
TA INTRUDER DISPLAY LIMIT 1 PROGRAM *
P8002
19
In
DATA RECORDER ENABLE*
P8002 20 In
HEADING VALID*
P8002
69
In
SELF TEST INITIALIZE SELECT*
P8002 74 In
TRAFFIC OPERATE/STANDBY*
P8002 75 In
An asterisk (*) following a signal name denotes that the signal is Active Low.
ACTIVE:
0 V
≤
Vin
≤
3.5 V, or Rin
≤
375 ohms
INACTIVE: 8 V
≤
Vin
≤
36 V, or Rin
≥
100k ohms
Source current is internally limited to approximately 1 mA max for a grounded input
