{"product_id":"rdl-tx-vcr-video-controlled-relay-bnc","title":"RDL TX-VCR Video Controlled Relay - BNC","description":"\u003cp\u003eThe 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\u003c\/p\u003eThe TX-VCR has one video \u003cstrong\u003eINPUT\u003c\/strong\u003e and a \u003cstrong\u003eLOOP OUT\u003c\/strong\u003e 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 \u003cstrong\u003eLOOP OUT\u003c\/strong\u003e 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 \u003cstrong\u003eSYNC LED\u003c\/strong\u003e lights when valid video is being detected.\u003cul\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cli\u003eDetect Video Presence\u003c\/li\u003e\n\u003cli\u003eDetect Loss of Video\u003c\/li\u003e\n\u003cli\u003eBridging or Terminated Operation\u003c\/li\u003e\n\u003cli\u003eDetection of NTSC or PAL Signals\u003c\/li\u003e\n\u003cli\u003eDry-Contact Outputs\u003c\/li\u003e\n\u003cli\u003eOperation from AC or DC Power\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":48414539220,"sku":"20541","price":137.0,"currency_code":"INR","in_stock":true}],"url":"https:\/\/sg-2111.myshopify.com\/products\/rdl-tx-vcr-video-controlled-relay-bnc","provider":"SG_2111","version":"1.0","type":"link"}