Crestron C2COM-3 3 Port RS-232/422/485 Card for Y-Bus Expansion Slot

Crestron C2COM-3 RS232 422 485 Serial Card for PRO2 AV2 *Fully Tested / Works* 1

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Crestron C2-COM2 2-Series / two RS-232/422/485 ports card

Crestron C2COM-3 three port serial card for PRO2 or AV2 - TESTED, USED

Crestron C2COM-3 Port Control Card