1-port RS-232/422/485 device server with 4 DIs and 2 DOs, 0 to 60°C
2-port RS-232/422/485 device server with 8 DIs and 4 DOs, 0 to 60°C
2-port RS-232/422/485 device server with 4 DIs and 2 DOs, 0 to 60°C