The Helmholz GmbH Digital-output-module for the modular fieldbus IO system TB20 y includes the appropriate front connector for the cabling and a base module and the module has 4 high-feature digital outputs with an output power of up to 700mA also the status display of the outputs is signalized on the module via green and red LEDs and there is also monitoring and diagnostics of the 24 V load voltage, excess temperature and short-circuit monitoring to ground for each channel.

A blue LED indicates the module's operating status
Green LEDs indicate the inputs’ states
Electrically isolated from the backplane bus