The IA-2668-E is an Ethernet Digital I/O Controller with 48 wide range Digital Inputs, 48 AC/DC Solid-State Relays and programmable operation modes. The IA-2668-E is capable of handling both Positive and Negative Logic Input signals, while the input pull-ups might be switched to either Positive or GND supply line, in order to best fit the attached devices. Input protection circuitsenable secure operation on wide voltage range of over +/- 30Volts. The IA-2668-E internal circuits may be operated by 5V supply or 3.3V supply in order to best fit attached “under test” units. The on board Pluggable Screw Terminal blocks includes 8 signal bits each, providing an easy wiring, easy rewiring, easy interchanging and most efficient space management without the need for additional wiring boards. The IA-2668-E software support package includes Visual Studio & Labview Drivers, open source examples and software utilities for fast system integration.