ROHS EVC422 Manual page 5

Function Control
4. Function for line control (hard wired controller)
5. RS485 connection terminal
Use the RS485 port to connect the camera to a keyboard controller
and control it. The camera is compatible with eight different
protocols.
The protocol and baud rate can be changed by using the dip switches
on the rear of the camera. See the following examples to change the
protocol settings:
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