Bolin Technology BC-9 Series, User Manual

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c) RS422 Connection: RJ45 to RS422/232 Phoenix terminal contact adaptor: Use extension
cables included to make RS422 connection for your control device .

Make the RS422 connection as following pinout definition instruction:

If you have more than one HDBaseT receivers to make multiple camera connection for RS422 daisy
chain control

You cannot use the RS-232 connections and the RS422/485 connection and the same time.
d) RS485 Connection: RJ45 to RS422/232 Phoenix terminal contact adaptor: Use extension
cables included to make RS485 connection for your control device .
NOTE: Use RS422 ports for RS485 connection. Only use TX+ and TX- for RS485 connection.

Make the RS485 connection as following pinout definition instruction:

If you have more than one HDBaseT receivers to make multiple camera connection for RS485 daisy
chain control