Answer:
The MI-DMMI provides a single monitored input circuit and consumes 1 address out of the 99 available loop module addresses, whereas the MI-DMM2I provides 2 independent input circuits and occupies 2 loop addresses.
Within the Morley-IAS addressable input module range, the MI-DMMI is configured as a single-channel input monitor, requiring only one address from the 99 allowable module addresses on a Morley-IAS intelligent loop. In contrast, the sister variant MI-DMM2I accommodates two independent input monitoring circuits and consumes two separate loop addresses.
Both models feature built-in short-circuit line isolators, plug-in terminal blocks, visible decade rotary address switches, and multi-colour diagnostic LEDs visible across two planes.
