Pit telephone system <ancillary equipment and safety instrumentation>

External phone call from the pit! A wireless telephone system that allows voice calls within the coverage area of a phone base station.

We offer an "Underground Telephone System" suitable for communication methods in mines and work sites. Within the radio range of the telephone base station, this wireless telephone system allows for voice calls, enabling not only internal calls from underground but also external calls. We can also propose solutions that include fixed telephones within the facility. 【Features】 ■ Direct Inward Dialing (DID) function allows individual external incoming calls to each terminal. ■ Broadcasting and paging of recorded audio sources can be done through speakers installed at various locations. ■ By connecting with metal wires, the base station/fixed telephone power is sourced from the exchange, eliminating the need for power underground. ■ In the event of a power outage, calls can still be made using the emergency power supply of the exchange. *For more details, please refer to the PDF document or feel free to contact us.

Tunnel construction