I/O Expander

XM-2DR I/O Expander

XM-2DR is an I/O expander dedicated to systems using RACS CLK/DTA protocol. Expander offers two NO/NC inputs and two relay outputs with 1.5 A/30 VDC and 5 A/30 VDC max load respectively.
Optionally, XM-2DR can be used as a standalone device (without communication with master device), when so, its outputs are controlled by signals applied to its inputs.

Ordering guide

XM-2DR I/O Expander
  • XM-2DR 
    I/O expander; two NO/NC input lines and two relay outputs; DIN rail plastic enclosure

  • XM-2DR-BRD 
    Electronic module of XM-2DR expander


  • power supply 12 VDC
  • current consumption 25 mA (both relays deactivated)
  • current consumption 110 mA (both relays activated)
  • two NO/NC inputs
  • relay output with single NO/NC contact and 1.5 A/30 VDC max load
  • relay output with single NO/NC contact and 5 A/30 VDC max load
  • version with plastic enclosure dedicated to installation on DIN rail
  • communication by means of RACS Clock&Data protocol or standalone operation
  • dimensions: 85.0 x 62.0 x 73.0 mm (height x width x thickness)
  • weight: ≈110.0 g
  • CE mark
  • environmental conditions of operation:
    • temperature from -25°C to +60°C
    • humidity from 10% to 95%