Product Details
The System Sensor MOD2W is a 2-wire loop test/maintenance module for i3 series detectors. It interprets the i3 “clean-me” maintenance signal, provides local indication and a relay output when service is required, and enables the EZ Walk one-button loop test to quickly verify initiating-loop wiring and connected detectors. It also supports Class A (Style D) wiring on the initiating loop.
Supported Detectors
• Up to twelve i3 2-wire detectors (2W-B and/or 2WT-B) plus one 2WTR-B on the same loop
Maintenance & Test Functions
• Interprets i3 remote maintenance (“clean-me”) and drives a service relay output
• EZ Walk one-button loop test for fast wiring/device verification
• Passes detector alarm to the panel while maintaining local status indication
Status & LED Indication
• Green: loop communication heartbeat (normal)
• Yellow: maintenance required or wiring fault (pattern-dependent)
• Red (steady): alarm condition on the loop
• Green/Yellow blink patterns: EZ Walk active and specific fault/maintenance states