jamesetherton99 0 Posted July 9, 2012 Hello. Can someone please tell me how I would connect a ptz camera to my dvr. I Notice that is does not have a "normal" RS485 interface, but rather a db25 male connection. Would I need some kind of converter or should I just go straight into pins 1 and 14 of the rs232C male interface? (pinout data below). This dvr is an Icatch rebranded. Here are the pinouts, from the manual: > > > > DB 25 definition > > > > 1 RS485_B > > 2 RLY1_COM > > 3 GND > > 4 ALARMN2 > > 5 ALARMN4 > > 6 ARARMN6 > > 7 ALARMN8 > > 8 GND > > 9 > > 10 > > 11 > > 12 > > 13 > > 14 RS485_A > > 15 RLY1-NO > > 16 RLY1_NC > > 17 ALARMN1 > > 18 ALARMN3 > > 19 ALARMN5 > > 20 ALARMN7 > > 21 > > 22 > > 23 > > 24 > > 25 > thanks. James Share this post Link to post Share on other sites
ferdzff 0 Posted July 10, 2012 use RS 485A and RS 485B only for PTZ Share this post Link to post Share on other sites
jamesetherton99 0 Posted July 11, 2012 ferdzff said: use RS 485A and RS 485B only for PTZ well....duh...yeah. I assume you mean the negative and positive control wires? I know that. My question is, how do i connect the two wires to pins 1 and 14 (R485_A, R485_B) of the male rs232c interface sticking out of my dvr. it does NOT have the "normal" (light green) interface. I since have got an answer from Raymond at Zmodo. He says just to attach the wires to the pins. I think I will see if a one pin header can be modified. I think that there *may* be enough room between pins for the small adapter. Maybe even a 1 pin header like from a pc fan? But I don't know if that's too small. I have forgotten so much of this IT, I need to go back and look again. Thanks for the info. tho. James Share this post Link to post Share on other sites
TipoFloe 0 Posted July 24, 2012 jamesetherton99 said: ferdzff said: use RS 485A and RS 485B only for PTZ well....duh...yeah. I assume you mean the negative and positive control wires? I know that. My question is, how do i connect the two wires to pins 1 and 14 (R485_A, R485_B) of the male rs232c interface sticking out of my dvr. it does NOT have the "normal" (light green) interface. I since have got an answer from Raymond at Zmodo. He says just to attach the wires to the pins. I think I will see if a one pin header can be modified. I think that there *may* be enough room between pins for the small adapter. Maybe even a 1 pin header like from a pc fan? But I don't know if that's too small. I have forgotten so much of this IT, I need to go back and look again. Thanks for the info. tho. James You can attach the wires directly to these pins, but they will eventually fall out. I would go to a local computer parts store, pick up a DB25 female plug, disassemble it, connect and solder the wires into the female DB25 and then plug that in. It's a little more work, but this is more secure. Share this post Link to post Share on other sites
