MSM8C104EX
Kontron MSM8C104EX The MICROSPACE® PCI/104-Express MSM8C104EX expansion card has a choice of either 8 or 16 serial interfaces available. Eachchannel can be singly selected as RS232C (+/-9V) or as RS422/485 each with 4 paired wires (TxD | RxD | CTS | RTS)