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The NCM-W provides two sets of switches to simplify network setup
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System Sensor M500X Fault Isolator Module System Sensor M500R The NCM-W provides two setsThe M500X Fault Isolator modules enable part of the communications signaling line circuit to continue operating when a short circuit occurs. The System Sensor M500X Isolator Module is an automatic switch that opens when the line voltage drops below four volts. This module is rigorously designed and tested for electromagnetic compatibility and environmental reliability, in many cases exceeding industry standards.
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