User's Manual - Pixord

Relay_NO shorts with Relay_COMGPIN1GPIN2GPIN3GPIN4Photo-coupled GPIO Input 1~4. The input is on when the connection is closed.GPIN4 is also used for Emergency Factory Default (Appendix C - EmergencyFactory Default ).TXD: Output to external PTZRXD: Input from external PTZDTR: Output to external PTZDSR: Input from external PTZGNDSystem Ground.EXT VIDEOExternal video input combines with DIP switch 1 to select internal /externalvideo source. DIP switch 2 is to do impendence match once select to externalvideo as input source.6.5.3 PiXORD 200/240/241/205The GPIO MINI DIM contains four GPIO inputs, one GPIO output as relay junction,and one RS-485 port. A PTZ device can connect directly to the PiXORD NC via theRS-485 port. And, the following pictures indicate the Pin direction:62 / 88