PTZ Camera Wiring

Wiring of standard RS-485 devices is quite straight forward.

The interface is marked with a + and a -.

It may be described as TX, RX or A or B or various other descriptions depending on the manufacturer. In all cases, the + is always connected to a + and the - always to a -. This is normally in series, e.g. from DVR + to Controller + to Camera 1 +, to camera 2 +, and then the same process for the -.

If using particularly long runs, the final device in the run must be terminated. This is normally achieved with a termination switch on the device. Refer to the device manual.

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Last Updated
1st of October, 2012

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