Input Isolator 

The Input Isolator has 8 individually isolated inputs and provides 8 sources outputs with a common return.  The Input Isolator is available with inputs of 24, 48 or 125 VDC. The output voltage of the isolator is determined by the supply voltage to the card, which can be from 12 to 125 VDC.  The converter is mounted on a DIN rail.

Specifications
  Inputs: 8 Isolated Inputs
  Input Voltage: 24, 48 or 125 VDC
  Input Termination: Terminal Block Plug
  Input Surge Withstand: IEEE/ANSI
    37.90.1 SWC
  Supply Voltage: 12 – 125 VDC
  Output Voltage: Determined by Supply
    Voltage
  Operating Temperature: -20 C to +85 C
  Humidity: 0 to 95% non-condensing