Proper Syntax for Telnet/TCP Custom Device

Hi all,
I’m trying to send the proper command to estabish a session with an Epson business projecter (PJLink won’t work so I’m using the ESC/ protocol).

To establish the connection, I need to send the string “ESC/”, then the byte 0x10, then uchar 3, then four null values. I know the following strings work in some terminals:

ESC/ (works in Hercules)
ESC/\x10\x03\x00\x00\x00\x00 (works in Atlona controller)
45 53 43 2F 56 50 2E 6E 65 74 10 03 00 00 00 00 (works as HEX string)

But these don’t work in Roomie. Can someone point me in the direction for the accepted syntax for telnet in Roomie to accomplish this?

The syntax you show there for Atlona is exactly how you would enter that into the Custom Devices editor (modulo what I assume is a typo because you say you need to send “VIP” and then your examples only send “VP”.) Compare with pinch to zoom log to determine the exact bytes sent/received.

Thank you very much for your help!