MIC-3955 3U CompactPCI® 4-port RS-232/422/485 Communication Card

The MIC-3955 is a 3U CompactPCI 4-port RS-232/422/485 Communication Card. It supports working with 32bit 33MHz or 66MHz PCI frequency.
The MIC-3955 support rear IO with 4-port RS-232/422/485 and 8-port RS-232/422/485. 4-port RS RIO Data Signals are DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI, (for RS-232); TxD-, TxD+, RxD+, RxD-(for RS-422);DATA-, DATA+, (for RS-485). 8-port RS-232/422/485 Data Signals are TxD-, TxD+, RxD+, RxD- (for RS-422); DATA+, DATA- (for RS-485); RxD, TxD, RTS, CTS, GND (for RS-232).