These inexpensive entry-level models offer either 8 relay outputs or 8 opto-coupler inputs in a compact form. Inputs: the inputs are galvanically isolated, 15 - 30 V input voltage are standard. Through exchange of a resistance network can be reconnected to 5 - 15 V Input counter for each channel and input change flags identify state change. Outputs: here come relay with 36 V/DC switching voltage at 15 W and 1a. A timeout protection provides in the event of a fault for switch-off of the outputs (can be configured through the software). Several modules in the system: up to 16 identical modules can be managed in a system. This is done via a Windows®-Tool each module has a number allocated to the unique address. Software: the included driver library DELIB enables provides for a simple response of almost any programming language.This text is machine translated.