rahuldigitech

@ tomcctv... thanks sir for posting the reply.. initially when all the system was working, all the dvrs were interconnected and the televisions were installed in three nearby offices near switcher. Each tv was having two 3+1 CCTV camera cables. 1> for switcher remote. 2> display cable for Video from switcher and three other cables for IR sensor from DVR. each dvr's IR input was looped and connected to three IR sensors. Each Tv was having three remotes. a> one for Television.(just to ON the TV and putting it to AV mode.) b> one for switcher control panel to switch between the eight dvrs. c> one for the DVR sensor fixed near the TV to switch between the different cameras in displayed DVR. my problem is.. The switcher has got damaged due to rain and water leakage.. the connections are need to be reconnected. please suggest....

respected all, i m facing a problem of installing a switcher (matrix type) for eight dvrs(avtech 16CH same model). The need is> 1. All the dvrs should be connected to the matrix switcher.( The distance is approx 150M of each dvr from switcher). which cable i should use???? 2.)the display and control from switcher to television is about 50M and which cable i should use for switcher control and displat to television.????? 3.) how can i control the individual DVR remotely near from television through IR . the dvr supports the 3.5mm jack for IR. can i extend the cable (150M in length) from DVR to television. All the dvrs are required to be controlled at all of the three televisions. 4.) The DVR has a output named CALL on the backside just above the output connector. What is the use of that???