190-01639-00
GSU 75 ADAHRS Installation Manual
Rev. 6
Page 4-7
4.3.4 GSU 75 RS-422 Serial Input/Output
4.3.5 GMU 44 RS-485 Serial Output
4.4 GSU 75 Discrete Inputs
DISCRETE IN* pins:
INACTIVE: 10:
≤
Vin
≤
33 VDC or Rin
≥
100k
Ω
ACTIVE: Vin
≤
1.9 VDC with
≥
75 µA sink current, or Rin
≤
375
Ω
Sink current will not exceed 2.0 mA for a grounded input
DISCRETE IN pins:
INACTIVE: Vin
≤
3.5 VDC
ACTIVE: 10
≤
Vin
≤
33 VDC with
≥
75 µA source current
Source current will not exceed 2.0 mA for a 10-33 VDC input
Table 4-10 GSU 75 RS-422 I/O
Pin Name
Pin
I/O
RS-422 IN A
10
In
RS-422 IN B
11
In
Table 4-11 GMU 44 RS-485 I/O
Pin Name
Pin
I/O
RS-485 OUT A
4
Out
RS-485 OUT B
2
Out
Table 4-12 GSU 75 Discrete Inputs
Pin Name
Pin
I/O
DISCRETE IN 1*
56
In
DISCRETE IN 2*
78
In
DISCRETE IN 3*
76
In
DISCRETE IN 4
77
In
340095
The document reference is online, please check the correspondence between the online documentation and the printed version.
