Honeywell MI-D21CMO Dual Input Module

The Honeywell MI-D21CMO device is an input monitor module for fire alarm control panels that enables a dual input circuit from external devices. The LEDs are multicolored to provide diagnostic information regarding the status of the output. The field wiring terminals are of a plug in design for ease of installation, testing, and maintenance.

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It allows you to connect two devices to your fire alarm control panel and uses multicolored LEDs to tell what’s going on with the output.


  • Surface and DIN rail mounting option
  • Tri-colored LED status indication
  • Built-in short circuit isolators
  • Visible address selector switches
  • LED status visible in 2 planes
  • Plug in connectors
  • Compliance with GEA GEI 1-082 and CEA GEI 1-084

Additional information

Weight 1 kg

Technical Specifications

Dimensions: (H x W x D) 93 x 94 x 23 (mm)
Weight: 110g
Operating Temperature: -20 ºC to +60 ºC
Humidity: 0 to 95% maximum non-condensing
Operating voltage: 15 to 30 Vdc
Standby current: – 340µA at 24 Vdc maximum
1 comms every 5 seconds with LED blink – 510µA at 24 Vdc maximum
Terminal Wire: 2.5 mm2 maximum