bulldog 0 Posted March 31, 2014 I have a system I am designing that will need to have 6 PTZ cameras. They will be controlled from the computer interface software to the DVR. Because of the location and distances it would be nice to go home run on the control wire rather then diasy chain the control wire. Has anyone worked with this type of arrangement and if so what mfg RS-485 star/hub repeater did you use? Share this post Link to post Share on other sites
ilk 0 Posted March 31, 2014 I have a system I am designing that will need to have 6 PTZ cameras. They will be controlled from the computer interface software to the DVR. Because of the location and distances it would be nice to go home run on the control wire rather then diasy chain the control wire. Has anyone worked with this type of arrangement and if so what mfg RS-485 star/hub repeater did you use? Synectics, BBV and Pelco make RS-485 star/hub repeaters which work very well. Ilkie Share this post Link to post Share on other sites
ssnapier 0 Posted April 1, 2014 I will have to look when I get back to work tomorrow, I forget the brand we use. Share this post Link to post Share on other sites
bulldog 0 Posted April 1, 2014 These can be hooked to the DVR and controlled by the DVR or WEB interface from a PC remotely via the internet? Share this post Link to post Share on other sites
survtech 0 Posted April 1, 2014 Check out GE / Interlogix KTD-83 series. A lot cheaper than the Pelco CDU-T's. I've used them for years and never had one fail. And unless you really need bidirectional communications (like having the PTZ send alarms back to the controller), RS422 works exactly the same as RS485. Share this post Link to post Share on other sites
ssnapier 0 Posted April 1, 2014 Check out GE / Interlogix KTD-83 series. A lot cheaper than the Pelco CDU-T's. I've used them for years and never had one fail. And unless you really need bidirectional communications (like having the PTZ send alarms back to the controller), RS422 works exactly the same as RS485. That is what we use as well, and I agree they are rock solid. Share this post Link to post Share on other sites
ssnapier 0 Posted April 1, 2014 This is another one we use a ton of: http://www.rcstechnology.com/oldsite/docs/accessories/rs485hub/8AH485D%20WD%20148-00635-01.pdf Share this post Link to post Share on other sites
bulldog 0 Posted April 1, 2014 Survtech and ssnapier thank you both for your help. I'm going to try the KTD-83 I'll let you know how it goes. Share this post Link to post Share on other sites
