Bolin Technology VCC-7 Series User Manual page 30

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
RS422 Daisy Chain multiple camera connection via HDBaseT receivers:
3.
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