Interlogix VDR14100WDM Series - Manual (Page 4)

VDT14100WDM Series
RS232 DATA
Data Input
Ground
7
6
5
4
3
2
1
Data Output
ON
OFF OFF OFF
3 2 1
RS422 DATA
ON
OFF OFF
ON
3 2 1
- Data In
+Data In
7
6
5
4
3
2
1
- Data Out
+ Data Out
- Data In/Out
+ Data In/Out
7
6
5
4
3
2
1 2-WIRE
RS485 DATA
ON
ON
3 2 1
ON ON
4-WIRE
RS485 DATA
- Data In
+ Data In
7
6
5
4
3
2
1
- Data Out
+ Data Out
ON
OFF
2 1
ON ON
3
NOTE: A 120 ohm resistor (provided)
may need to be connected across
the data lines to ensure proper
operation.
NOTE: A 120 ohm resistor (provided)
may need to be connected across
the data (in) lines to ensure proper
operation.