I'm using the same Global Cache device to control my TV Boxes using IR, and the serial connection to control my Atlona HDMI Matrix. I added the GC100 to the GenericSerial devices, which allows you to set the IP Address, port, and serial parameters. I then created a Serial Model in the Serial Database for the Atlona and entered each command there. I found it easiest to use HEX commands. So for yours something along the lines of # 23 50 4F 46 0D 0A. Not sure if the comma after # is needed, so you'll have to test it to make sure it works properly.
I then use the serial database in my Macro's for the SmartRemote. A command like:
If|isEQ##{{activeroom_{{clientname}}}}##Office##AV|18~Send~Atlona AT-PRO3HD66M~(1)-Rogers2 to (3)-Office!
The GC100 is identified by its ID, in my case 18. The Atlona line above is from the Serial Database you created.
Hope this helps,
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bitzerjd
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