B&B Electronics 1680 ISA 1-Port RS-422/485 Serial Card

B&B Electronics 422ICC 1-Port RS-422/485 Serial Card 8-Bit ISA - Handshake This single port Model 422ICCB serial card supports TD, RD, RTS, CTS, DSR, CD, and DTR with an RS-530 compatible male...

B&B Electronics MESR901 VLink Ethernet Serial Server Modbus RS-232/422/485 From the manufacturer: Bridge Modbus TCP Ethernet and RS-232/422/485 networks Modbus TCP, ASCII, RTU (up to 16 masters...