Local intrinsically safe shaft communication system ITS (TS)

Application

Local ITS system has been designed to enable the organization of telephone communication in mines’ shafts where there are hazardous conditions of methane air atmosphere of any concentration. It enables: connecting and carrying out a telephone conversation within the automatic traffic (CBa) by telephone sets TIG-S, of the main signaler with the level signalmen and another way round, signalmen between themselves, as well as signalmen with the elevator machinist, and the machinist with signalmen, direct (button MW) calling of the machinist from any shaft telephone set TIG-S, immediate direct connection of the machinist with any signal post equipped with a TIG telephone set, the possibility to set a conference connection by the machinist or from the authorized telephone set, the possibility of joining the third party to the conversation on the background of the warning signal, from any shaft telephone set which is connected to the system.

Power supply

Buffered – 48V DC

Capacity

• up to 16 NN intrinsically safe
• up to 4 NN non intrinsically safe

Surface equipment

ITS rack consisting of:

• SLICAN CCT 1668 (or alternative) telephone exchange
• intrinsically safe circuits distribution frame
• non intrinsically safe circuits distribution frame
• 230 V AC/48V DC converter
• 48/48 V DC converter
• set of maintenance-free batteries
• intrinsically safe separation units ZSI
• operator’s telephone set

Shaft equipment

• intrinsically safe mining telephones TIG-S custom made for the ITS system
• alternatively – Intrinsically safe industrial broadcasting telephone PST custom made for the ITS system

The system is also available in non intrinsically safe version – TS, equipped with industrial telephones TPN or  industrial broadcasting telephones PST-N