UTC Fire and Security Interlogix VR1910 Installation & Operation Instructions page 3

2W 4W
SW 232 422
485 485
1
OFF OFF ON ON
1
OFF OFF OFF ON
2
2
3
3 OFF = TAMPER SW
ON = BYPASS
TAMPER SW
CARRIER DETECT
POWER
2W 4W
SW 232 422
485 485
1 OFF OFF ON ON
1
2
2 OFF OFF OFF ON
LOSS OF VIDEO/
TAMPER SWITCH
CARRIER
DETECT
POWER
RS232
RS422
RS485 (2-wire)
RS485 (4-wire)
NOTE: Switch 3
ON: will pass data.
OFF: will pass Tamper Switch status and data
from VR to VT, but not from VT to VR.
VT1910
FM VIDEO TRANSMITTER
+
DATA TRANSCEIVER
ifs
International
Fiber
Systems
Incorporated
VR1910
LOSS OF VIDEO / TAMPER SWITCH
FM VIDEO RECEIVER
& DATA 2 WAYS
ifs
International
Fiber
Systems
Incorporated
Switch 1 Switch 2
OFF OFF
OFF OFF
ON OFF
ON ON
TAMPER SWITCH
- 7
RS422/
- DATA (IN/OUT) - 6
2W RS485
+ DATA (IN/OUT) - 5
RS232
RS232 DATA OUT - 4
- DATA OUT - 3
RS422/
4W RS485
+ DATA OUT - 2
- 1
VIDEO INPUT
OPTICAL OUT
OPTICAL IN
- 2
+ 12 VDC - 1
Duplex multimode
fiber optic cable
- 7
RS422/
- DATA (IN/OUT) - 6
2W RS485
+ DATA (IN/OUT) - 5
RS232
RS232 DATA OUT - 4
- DATA OUT - 3
RS422/
4W RS485
+ DATA OUT - 2
- 1
VIDEO OUTPUT
OPTICAL OUT
OPTICAL IN
- 2
+ 12 VDC - 1
FUNCTIONALITY OF TAMPER SWITCH:
The tamper switch terminals on the VR will
open upon one of the following conditions;
loss of carrier, loss of video, switching of SW3
on the VT to the ON position.
Video source
Black wire
Black with
white stripe
Black wire
Black with
white stripe
Coax cable
Coax cable
Video
monitor