The Fire-Link®II ISD-2501UW is designed to be used with the UL/ULC listed NMC-101SW and other Fire-Link®II Components. It is intended to supplement the signaling capabilities of a building’s fire alarm system. By utilizing the existing wiring infrastructure (i.e. the building’s own 115V AC electrical wiring) Signalink offers the fire protection industry a solution that is easy to install, can be placed anywhere a standard power line outlet exists and prevents unsightly surface raceway from being installed in public hallways. The Fire-Link®II system provides a cost-benefit solution to a North America wide audibility problem without the expense of any additional wiring or costly, noisy, dirty mess associated with traditional installation.
Unique Power Line Technology
The ISD-2501UW is a plug-in, addressable, battery-backed-up, audible device. It does NOT detect smoke or carbon monoxide. It is intended for use in living and sleeping areas. The ISD-2501UW is often referred to as a "wireless horn".
Applicable Standards
UL 464 Audible Signal Appliances
ULC S525 Standard for Audible Signal Devices
NFPA 72 National Fire Alarm Code
CSFM 7300-1699-0102


Residents and Building Owner Benefits
- Improved Safety
- Very loud buzzer exceeds UL requirements
- Plugs into any AC outlet for optimal audibility
- High intensity 30 candela strobe feature
Minimal Disruption
- One day installation
- No building alterations required
- Testing and monitoring of the buzzer or strobe in each unit can be monitored from the panel without entering the unit
Installation and Testing Benefits
- Cost Effective
- Installs in one day
- No drilling, pulling wires or building alterations
- Greatly reduces labor costs
- Quicker fire alarm testing
- Operation of buzzer and strobes in each unit is monitored from the panel. (applies to installation & periodic fire alarm testing)