Allen-Bradley 5200-179 Fireman's Master Telephone

The Allen-Bradley 5200-179 Fireman's Master Telephone is a central two-way voice communication device used in fire alarm and emergency communication systems to link firefighters with fire command personnel during emergencies. Installed at the Fire Command Center or as a panel/console-mounted station, this Fireman's Master Telephone serves as the central firefighter voice communication hub for coordinating incident response and evacuation operations in high-stakes environments. Designed for commercial buildings, hospitals, high-rise structures, and industrial facilities, it uses a commercial/industrial grade construction and is compatible with fire alarm and emergency communication systems to enable reliable two-way conversations between on-site crews and command staff. The device is listed as a legacy product with limited public documentation, and when upgrading or refurbishing an older system, common replacements include the Simplex 4602-9101 Firefighter Telephone Master Handset, Notifier FFT-7 Firefighter Telephone Master, and Mircom QMT-5302 Firefighter Telephone Master Station.