ztrahp 0 Posted June 23, 2010 i think i need a gv net card, but not sure. the spectra III has a TX+, TX-, RX+, RX- port on it. the schematic for the gv net card has RS 485+ and RS 485- ports on it. i'm confused on this. are they compatible? I'd be using a cat 5E cable using 1 of the 4 pair to BNC baluns for video, and could use the other 3 pair for PTZ control. i haven't bought a gv net card yet. wanted to know if this is the way to go. any help would be greatly appreciated. thanx in advance... Share this post Link to post Share on other sites
Soundy 1 Posted June 23, 2010 You only need to connect the TX pair on the DVR, to the RX pair on the camera. And you shouldn't need a special card for it - just connect it to a serial port on the computer. RX+ on the camera will go to pin 5 on the DB9 connector... RX- goes to pin 3. Configure GV to use the serial port (probably COM1 if it's a built-in port), and make sure the comms parameters (baud rate, etc.) and camera address are all set properly to match the camera's settings. Share this post Link to post Share on other sites
ztrahp 0 Posted June 23, 2010 many thanx, you've made my day. it makes perfect sense and i'll try it. thanx Share this post Link to post Share on other sites
ztrahp 0 Posted June 25, 2010 schazam, it works. many thanx again soundy... ztrahp Share this post Link to post Share on other sites
