Secutron MRI-M500RAP — addressable Advanced Protocol relay control module that gives a Secutron panel dry contact outputs on the signalling line circuit.
It exists so a panel can operate auxiliary equipment such as fans and dampers without separate control wiring. Advanced Protocol uses group polling and an interrupt feature for faster response and greater loop capacity, and AP devices fall back to CLIP mode on legacy systems. Mircom, which owns Secutron, publishes the matching M500RAP sheet: two isolated sets of Form-C contacts as a DPDT switch, rotary decade address switches and a panel LED.
- Secutron name: Advanced Protocol Relay Control Module
- SLC current 0.3 mA standby, 5.1 mA alarm
- Listed for MMX-4000 and MMX-2000 series and the MR-3318 panel
- MR-3318 allows up to 159 addressable modules per loop in AP mode
- Relay contacts are not supervised
- ULC listed version is ordered as MRI-M500RAPA
The suffix is the whole product. MRI-M500R is the older Addressable Relay Output Module and MRI-M500SAP the Supervised Control Module for notification appliances. MRI-M500RAPA is the ULC variant.