2. Troubleshooting
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(Connect pin No.2 and 6)
RS-232C port loop back connector should be made as follows
(Connect pin No. 2 and 3) (Connect TX and RX)
RS-422/485 port loop back connector should be made as follows:
(Connect pin No.4 and 8, pin No.5 and 9) (Connect TX+ and RX+, TX-and RX-)
After connected loop-back terminal, select the port you want to inspect and then click ‘Test’.
If the port is normal, then the OK message will popup, otherwise, it will shows FAILED message.
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