Samsung Signage Configuration

Hello,

I had 4 ED55D - Samsung LED TVs which has 1HDMI, 1DVI, 1-AV, 1-RS232 In & OUT port only.
I need to loop all those 4devices and control/communicate through one PC.
Kindly advice regarding the protocol to establish such comms. & software req, Communication cables and all.


Thanks
Please help

I didn't find the right solution from the Internet


References:
community.spiceworks.com/forum/samsung-signage-configuration
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