Rs - 232 Data; Data Input; Data Output; Rs - 422 / 4 - Wire - UTC Fire and Security interlogix VT9930WDM Installation & Operation Instructions

VT/VR9930WDM

RS - 232 DATA

RS - 422 / 4 - WIRE

RS - 485 DATA

2 - WIRE

RS - 485 DATA

CONTROL LINES

1
2

Data Input

3

Data Output

4
5
6
7 Ground
8
20
1
2
3
4
5
- Data Input
10
11
+ Data Input
12 - Data Output
13
+ Data Output
20
1
2
3
4
5
- Data Input / Output
10
11
+ Data Input / Output
12
13
20
1
2
3
RTS
4
5 CTS
DSR
6
7
8
DCD
13
DTR
20