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Connecting an EGX150 to a serial RS485

Article available in these languages: Spanish

Issue
The Serial port for the EGX150 uses an RJ45 connector, which is different from the standard RS-485 connector.

Product Line
Link150, EGX150

Environment
EGX150 serial connections

Cause
The EGX150 does not use the standard RS-485 connector.

Resolution
Pin NumberColourSignal nameDescription
1Orange/White stripedRx-Receive Data -
2OrangeRx+Receive Data +
3NCNo Connection
4BlueTx+Transmit Data +
5Blue/white stripedTx-Transmit Data -
6NCNo Connection
7NCNo connection
8GNDGround













Connect, using a straight through RJ45 cable to the RS-485 port on your EGX150.
Cut the other end (that is to be connected to your slave device) to expose the wires.

2-Wire RS-485 connection:
Use the Blue wire as the positive (+) and the Blue/White striped wire as the negative (-)
RS485 2-Wire Connection Diagram

4-Wire RS-485 connection:
RJ45 Pin Number MasterSlave
1Rx-Tx-
2Rx+Tx+
4Tx+Rx+
5Tx-Rx-







RS485 4-Wire Connection Diagram

Kindly refer to the EGX150 User Guide for details on how to wire the RS-485 port.

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