AVD-3120
VA-700
I.R.T. Communications Pty Ltd | www.irtcommunications.com
Page 15 of 23
Revision 10
TECHNICAL SPECIFICATIONS
Video:
Video system
Composite PAL or NTSC.
Video input level
0.7 to 1 Volt p-p composite video.
Input impedance
High impedance bridging.
Performance:
Detection threshold
- 6 dB referenced to 1 Vp-p composite video signal (factory setting).
Internal preset adjustment effective in the range 0.4 to 0.7 Volts p-p
composite video.
Response time:
Alarm active
12 ms after sync loss.
Alarm reset
800 ms after sync return.
Indicators & alarms:
Visual indicators
VIDEO FAIL ALARM LED.
Alarm output
Relay circuits operated from alarm logic.
Changeover relay contact set.
Relay contact rating
24 Vdc - 1 A;
100 Vac - 0.3 A.
Alarm connector
3 pin 0.1 inch spaced socket strip with mating locking plug assembly
mounted on rear assembly of VA-700.
Power requirements
:
Voltage
±
12 Vdc from VA-700.
Power consumption
50 mA (additional to VA-700).
Other:
Temperature range
0 - 50° C ambient.
Mechanical
Suitable for mounting in IRT VA-700 VDA.
Dimensions
135 x 42 mm PCB.
Due to our policy of continuing development, these specifications are subject to change without notice.