Understanding the mDI001 4 Channel Fail Safe Digital Module:

  • The mDI001 is a self-powered digital input module with 4 inputs
  • The module is packaged in a potted plastic case with a pluggable terminal strip
  • The module can monitor up to 4 switches or dry relay contacts
  • It supports standard on/off mode or failsafe mode. Using failsafe mode, the module can detect loop open and short circuit conditions
  • The device connects to the single-wire communications bus using the attached 2m (6’) cable and RJ-11 connector
  • Power is derived from the single-wire bus, external power is not required




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