1-port Non-Isolated RS-422/485 with 5-ch Isolated Digital Input and 5-ch Isolated Digital Output (RoHS)
MAQ20 Digital Input/Output Module, 3 to 60VDC, 5-ch Input, 5-ch Output, 3 A
RS-232, 5 DI & 5 DO Board, 128K EPROM, for I-7188XB/EX/XG/EG
RS-232, 5 DI & 5 DO Board, 256K EPROM, for I-7188XB/EX/XG/EG