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No. 698	RTN (Signal Return Common Reference for logical signals.) On CSE-H55?	2012-09-26

Hello, I have bought a CSE-H55 to connect a RS485 to Ethernet. The connection from the CSE-H55 to Ethernet to my PC is work fine. I have a Power One Aurora Uno solar string inverter (PVI-4.2) This system can communicate with a PC on RS485. I want to connect the RS485 to the CSE-H55. On the inverter I have 3 connections: two transmission reception lines (+T/R and –T/R) and a reference communication line (RTN) All tree lines must be connected. How and where must I connect the RTN on the CSE-H55? Thanks for your help. Kind regards, Alex Veldman The Netherlands.