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Speaker lines are supervised for open
Simplex 4100-1272 Expansion Phone Controller
The Gamewell-FCI ACT-1 is a component of the Intelligent Network Interface Voice Gateway (INI-VGE)
Ordering Information AMM-2F: Addressable monitor module
This operation increases circuit supervision integrity by providing supervision that extends beyond the appliance wiring connections
System Sensor SPRL-BP10 Bulk Pack with 10 Single Units LHNWC3 Speaker lines are supervised forThe System Sensor SPRL BP10 is a dual voltage evacuation speaker and selectable output speaker strobe. It has a plug in design and a universal mounting plate. This allows for faster installation, lower current draw, and modern aesthetics. The SPRL BP10 also reduces ground faults. Bulk pack with (10) SPRL single units.