whitemiket 0 Posted December 17, 2010 Can anyone help me with this: I have a Spectra III which is probably 750 feet or more away from my rs485 device. I had to use a active balun to get the video signal, which is working, but I can't get any activity on the PTZ. Do I need some sort of booster for the PTZ wiring? If I do, can a active balun for video transmission work for this or do I need something different? Thanks! Share this post Link to post Share on other sites
survtech 0 Posted December 17, 2010 RS422/485 can travel up to 4000 feet on CATx twisted-pair. Farther than that, the signal could be run through a code distribution unit like the Pelco CM9760CDU-T or the Kalatel KTD-83 series to extend the range. Share this post Link to post Share on other sites
