SP-MNR2 SecurityExpert COMMS Expander Manual

This document describes the SecurityExpert SecurityPurpose COMMS Expander (model SP-MNR2), a network expansion module that provides three isolated RS-485 ports and an Ethernet connection for extending SecurityExpert system networks. It enables optical isolation between network branches, resolves ground loop and distance issues, and is configurable via a built-in web interface for reliable communication in challenging physical environments.