Hello, I am trying to communicate using below devices and configuration. I am using Module which works on +24VDC / 0. RJ45 is connected to that Module as COM PORT 1. PIN Description of RJ45 [1-RxD || 2-TxD || 3-NC || 4-NC || 5-NC || 6-RTS || 7-NC || 8-GND] RJ45 is connected to RS232 using below …

RJ45 - RS232 - MAX3232 - Arduino Rx Tx interfacing/communication - #2 by system - Networking, Protocols, and Devices

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