passive Multiport Cards

430N SeaI/O-430N Expansion Module 32 Optically Isolated Input SeaI/O Expansion Module

430S SeaI/O-430S RS-232 Modbus RTU Interface to 32 Isolated Inputs

430W SeaI/O-430W Expansion Module Wi-Fi 802.11b/g Modbus TCP to 32 Isolated Inputs

4401 SeaLINK+4.232: Ethernet to 4 Port RS-232

4402 SeaLINK+4.422: Ethernet to 4 Port RS-422/485

4403 SeaLINK+4.ULTRA: Ethernet to 4 Port RS-232/422/485

440E SeaI/O-440E Ethernet Modbus TCP to 32 Reed Relay Outputs

440M SeaI/O-440M RS-485 Modbus RTU Interface to 32 Reed Relay Outputs

440N SeaI/O-440N Expansion Module 32 Reed Relay Output SeaI/O Expansion Module

440S SeaI/O-440S RS-232 Modbus RTU Interface to 32 Reed Relay Outputs