Explosion-Proof Telephone Apparatus TAH1-1A for Reliable Mining Communication

The explosion-proof telephone set TASH1-1A with a push-button dialer is designed to provide telephone communication in the
mine networks built on the basis of ShTSI4-1, ShTSI4-IP, ShTSI5 complexes. At the customer's request telephone sets
TASH1-1A telephone sets can be equipped with a light signalling device TASH-SS-1.
The telephone set performs the following functions:
1) telephone conversation;
2) dialling the subscriber's number in pulse mode through the PBX line with the help of an electronic dialer
dialer;
3) calling the dispatcher (by pressing button D);
4) reception of the call signal from the dispatcher or via the PBX line;
5) emergency call to the dispatcher (by pressing button A).