This module operates in two modes of 1 to 8 and 2 to 4. For the 1 to 8 mode, the input1 is converted to electrical signal and then is connected to all eight outputs and in the event of input loss, all the outputs would be disconnected. For the 2 to 4 mode, the input1 is connected to the first four outputs and the input2 is connected to the second four outputs. In this mode, “Change over” option is available. When the “Change over” is enabled, if one of the input signals is lost, its corresponding outputs are fed by the other input. All adjustments and controls can be applied directly by onboard DIP switches and web interface remote control. LED Indicators on the front edge of the card, inform the user about operational status of the module..