The emDC* data concentrator is a device intended for data transmission from the mine underground to the surface. It is an underground telecommunication node enabling connection of multiple IT systems with such interfaces as: intrinsically safe serial transmission RS422 or RS485, intrinsically safe Ethernet. Data transmission is conducted via SHDSL modems. Additionally, it is possible to connect the emDC data concentrator to the underground fiberoptic network through the application of an intrinsically safe mediaconverter.

  • conversion of serial transmission to the TCP/IP standard
  • transmission via SHDSL telephone line (range to 8 km without repeater, speed up to 15 Mbps)
  • integrated power supply of 12 V for intrinsically safe external devices
Type emDC-*
Supply voltage 230 V AC , 110 V AC
Communication max. 4 x SHDSL Ex
Communication max. 2 x Ethernet Ex, 10/100Base-Tx
Communication max. 4 x RS485 Ex/ 4 x RS422 Ex
Communication max. 1 x MPLM (transmission from the shearer)
Power supply of external devices 12 V Ex , 2 A
Persmissible ambient temperature 0-40 °C
IP degree IP54
Weight 50 kg
Designation 1453  I M2 Ex d [ia Ma] [ib Mb] I Mb

* option/variant