[?]: manual for AB redundant system 1757 srm

[rst_1999]

Hi guy,
sorry if i wrote 2 time the same topic , i am new.

I'm working on AB redundant system.
I did't find any similar architecture on web and manual.
I have PS , CLX , ControlNet module , 1757 - SRM for each redundant chassis .
Then there is ethernet module on remote controlnet chassis for HMI communication.

On manuals i find only system description with 2 ethernet module on each redundant chassis .

Have you some information
Thanks