CB-136 Communication Microphone

The Telefire CB-136 is an omni-directional communication microphone with noise canceling, designed as an accessory for fire alarm and emergency communication systems. Its specialized design allows for clear and intelligible voice transmission even in noisy environments.

Technical Specifications

• Description: Communication Microphone
• Sensitivity: -46.4dB ±3dB (1V/Pa) at 1KHz
• Impedance: 500Ω ± 30% at 1000 Hz
• Direction: Omni-directional with noise canceling
• Frequency range: 200Hz – 5KHz
• Weight: 250g (without cable)

Features and Application

The CB-136 microphone is used as an accessory for Telefire fire alarm systems, such as the GUARD-V control panel and voice announcement systems. The built-in noise canceling ensures that emergency messages and announcements are clearly audible, minimizing the interference of background noise.

The microphone is specifically designed to meet the rigorous requirements of fire alarm systems, ensuring reliable communication during emergencies. The frequency range (200Hz – 5KHz) is optimized for human speech transmission, which is essential for the intelligibility of evacuation instructions.

Installation and Usage

The installation and usage of the microphone must be carried out according to the instructions of the system designer and installer, as well as the regulations of the Authorities Having Jurisdiction (AHJ). It is important that the designer and installer have the appropriate qualifications for installing fire protection systems.