How to test the serial port connection between PTZ Camera and the computer?

You must make sure that the connection between PTZ Camera with your computer is available before using PTZ Controller software to control your PTZ camera.

Usually, PTZ Camera are connected with the computer through RS232 port (serial port). Here is the RS232 DB9 pinout.

RS232 Interface

You need to do a loopback test to verify the operation of serial port communication.

To perform a loopback test for RS232, please shortcut the RX and TX on computer serial port first. That is pin 2 and pin 3.

Run our free test tool Comm Operator Pal for loopback test. Please use the same port and baud rate as in PTZ Controller. If the serial port works, the data should be echoed back in log window.

Comm Operator Pal - Loopback test

If the serial port works, please also shortcut the other end of the cable that connected to RX/TX on PTZ Camera and run loopback test with Comm Operator Pal to make sure the cable works.

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