Explosion-Proof Telephone Device TAH1-15A for Secure Mine Communication

The explosion-proof telephone set TASH1-15A with push-button dialer is designed to provide telephone communication in mine networks built on the basis of ShTSI4-1, ShTSI4-IP, ShTSI5 complexes. At the customer's request TASH1-15A telephone sets can be equipped with TASH-SS-1 light signalling device. TASH1-15A telephone sets have an intrinsically safe amplifier and an additional cable gland for connection of an intrinsically safe HS-20B loudspeaker.

The telephone set performs the following functions: 1) Telephone conversation. 2) Dialing the subscriber's number through the PBX line using the electronic dialler. 3) Calling the dispatcher (by pressing button D).

4) Receiving a call signal from the dispatcher or from the PBX line. 5) Emergency call to the dispatcher (by pressing button A). 6) Loud-speaking notification of subscribers.

7) Listening to industrial noises.