Im running a geovison dvr card works good for years adding a ptz camera ,I tested camera in house had ptz working ,so went to install ,have video but not control of ptz ,I used the dc power plug connecters to join the rs485 wires so i could service camera with out cutting wires ,can I not use that plug in on the rs485? I used the wires in the Siamese cable to the rs485 , and ran a separate outdoor cable for power to camera ,better connected direct with no plug? thanks for any info Gil