SOHARD SH ARC-USB, Руководство пользователя

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22
The resulting terminating resistor is approx. 114 ohm.
9.3 RS485AC Interface (-RS485AC-RJ45 / -BNC)
Important: To maintain the electromagnetic compatibility (EMC) the
shield of the cable connected to the RJ45 plug must be solidly attached to
the shield of the connector.
Connector type: RJ45 socket (-RJ45), BNC socket (-BNC)
Pin assignment RJ45 Pin Marking Description
4 PHASE B Data line B
5 PHASE A Data line A
1-3
6-9 NC Reserved
The center core of a BNC socket is PHASE A, its shield is PHASE B.