Njoy Astris 5K/3P2T2 User Manual page 28

Install RS485 following this steps:
Step1 Loosen screws and remove the cover plate.
Step2 Wires making,threading and wiring.
Step3 Insert the 6-Pin terminal into the RS485 communication port.
Step4 Install the RS485 cover.
Step5 RS485 communication address setting.
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