catfish80 0 Posted December 11, 2012 hello everyone, and sorry for this stupid question. I did a search on the forum and came up empty handed but i am putting in my second ptz and intend to put more in down the road as money becomes available. I am having no luck with my second ptz tho, when i hook it up, i have full control of it but lose control of my original, i have assigned them the appropiate address that syncs up with the identical address on my dvr so i dont think that is the problem. After reading about this, i think i need to terminate the long run, buuuutttttt, i dont know how. Please be kind as I am new here and will hopefully be able to provide advice to other "newbies" down the road as I gain knowledge. Any diagrams, picture, etc... would be greatly appreciated. Thank in advance Share this post Link to post Share on other sites
catfish80 0 Posted December 11, 2012 after more research, i am using the star wiring pattern, i will in the future add more ptz's with a possibly longer run. There are no dip switches to terminate like i have read elsewhere, so if i terminate now, which i still do not know how, will i be able to reverse that once a longer run goes up. the ptz i need to terminate is a qsee qd6531z, once again i apologize if this is repetive information you folks provide. Share this post Link to post Share on other sites
hardwired 0 Posted December 11, 2012 Each camera needs a unique channel address (usually is set to match the camera number input on the DVR), only the baud rate and protocol should match the DVR settings. See page 4 of the manual here, http://qsee.custhelp.com/ci/fattach/get/97735/1353530960/redirect/1/session/L2F2LzEvdGltZS8xMzU1MTkwNTkyL3NpZC9nUjFoaXJkbA==/filename/QD6513Z%20QD6505P%20Camera%20Manual_web.pdf Share this post Link to post Share on other sites
catfish80 0 Posted December 11, 2012 Yes, I have the addresses correct, just need to know the proper way to terminate the rs 485 Share this post Link to post Share on other sites
justincameras 0 Posted December 27, 2012 Some DVR's terminate the RS485 with a programmed switch, Some cameras have an EOL End of line dip switch. If either of these are not avaiable, try a 120 Ohm resistor across the last camera's 485 wires in parralel. http://www.rs485.com/rs485spec.html Share this post Link to post Share on other sites