Telem-RTA

Telem-RTA - Combined RTU, Data Concentrator and Annunciator

The combined RTU, Data Concentrator and Annunciator Telem-RTA is a master remote terminal unit for coordinated substation control. Telem-RTA provides control operations, data collection, protocol cross-referensing and data exchange with remote control center.

  • 4 x RS232 (1 x full modem sign.)
  • 18 digital inputs (16 dry contacts with int. supply, 2 with ex. supply)
  • 5 double command outputs (2 open collector and 8 open drain outputs)
  • 6 analog inputs
  • 2 analog outputs (on request)
  • 16 event indicator LEDs
  • 16 acknowledgment buttons (on request)

Communication protocols towards to control centre
IEC 60870-5-101 Unbalanced & Balanced, IEC 60870-5-104

Communication protocols towards to substation
IEC 60870-5-103, IEC 60870-5-101 Unbalanced, SPA-bus,
IEC 62056-21 (IEC 1107), Modbus-RTU

Telem-DI24-T

Digital Input RTU Module

  • 24 optically isolated digital inputs
  • RS-232 and RS-422 interfaces
  • Terminal wires up to 2,5 mm2
 

AS Martem Akadeemia tee 21G, 12618 Tallinn, Estonia
Phone: (+372) 6397979 E-mail: martem at martem dot eu