RDL, Video Controlled Relay

TX-VCR

$302.24

* Ex GST. Check with us for the latest pricing

- Detect Video Presence
- Detect Loss of Video
- Bridging or Terminated Operation
- Detection of NTSC or PAL Signals
- Dry-Contact Outputs
- Operation from AC or DC Power

The TX-VCR is the ideal choice in installations where a control signal is needed based on the absence or presence of valid video signals. The unique power supply input allows the TX-VCR to be powered from a wide variety of existing ac or dc power sources.

The TX-VCR has one video INPUT and a LOOP OUT video jack. The detection circuit bridges a 1V video line. The TX-VCR may be inserted in a video line with the loop-through video output feeding a terminated load. It may alternatively be installed at the end of a video line by installing a 75 Ohm terminator to the LOOP OUT video jack. The terminator is supplied with the TX-VCR.

Video detection is based on valid sync signals. The TX-VCR responds to valid NTSC or PAL sync while ignoring 50 Hz and 60 Hz hum and related induction artifacts. The TX-VCR is able to detect signals as weak as 0.5 V p-p. When a valid signal is detected, the relay contacts close. Both a normally-open and normally-closed contact are provided, permitting the module to be connected as a video-present detector or as a video-loss detector. The front panel SYNC LED lights when valid video is being detected.

If a local or remote loss of video audible alert is needed, the TX-VCR may be wired to an RDL BZR.

Download Product Datasheet

http://www.rdlnet.com/product.php?page=84

Contact

Australia: sales@avw.com.au
Syd: 02 8213 0200  Mel: 03 8691 5210 Qld: 07 3607 3785 WA/SA/NT: 08 8120 3203

New Zealand: sales@avw.co.nz 
Akl: 09 271 4000 Wel:  04 499 3888

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