The HM-DISO-UL Fault Isolator Module is used with the fire alarm control panels (FACPs) to protect the system against wire-to-wire short circuits on the SLC loop. The HM-DISO-UL should be placed between each
device on the SLC loop to isolate a short circuit problem between the modules. It is required for true Style 7 operation, so that other devices can continue to operate normally in the event of a short circuit on the SLC.

  • Powered by SLC loop directly, no external power required
  • Mounts in standard junction boxes (4.0”/10.16 cm square, 2.125”/5.398 cm deep)
  • Integral LED blinks to indicate normal condition and illuminates steady when short circuit condition is detected
  • High noise (EMF/RFI) immunity