STG-N system

Local Telephony and Loudspeaking Connection STG-NApplication
STG-N system has been constructed with the idea of utilizing it as: a local telephone and loudspeaking connection system for plants in which there are areas classified in the hazard group IIB T3, where a local loudspeaking telephone connection is necessary, as well as sending and receiving two-stage information. (on/off) This system enables the realization of automatic telephone connection what makes possible the fast flow of information between the plant personnel and the dispatcher (after pressing the button DYSP or ALARM), and sending information and orders between the plant employees during the regular plant exploitation.

Capacity
  • Modular construction of the maximum capacity of 16 internal connections and four inter-exchange connections.

Power supply

Buffer - 48V DC

Station equipment
STG rack equipped with:

  • SLICAN - NTC 1248 local telephone exchange
  • line units LPI, ZSD or ZSI in th eamount of 16 pieces
  • buffer power supply unit DC/DC48/48 with service-free batteries
  • buffer power supply unit DC/DC48/48, 12V, 24V
  • non-intrincically safe circuits distribution frame of the capacity up to 20 NN
  • dispatcher's manipulator MD-1 or a system telephone set ATS 20

Underground equipment
  • Industrial Telephone Sets TPN and TPN-S (S - with the optical signaling device)
  • Programmable Loudspeaking Signaling Devices PSR-N
  • Programmable Telephone Signaling Devices PST-N