RTU modules

Lighting Control Box Controller (LCBC) for Smart Street lighting

Controls street lighting power feeders. Communicates with central system via 4G/3G/2G GPRS interface. Works autonomously according to configured rules. Serves as a gateway for luminaire controllers.

Datasheet (PDF)


Annunciator panel for using with Telem-GWM-C or Telem-GW6


Data concentrator with built-in 4G/3G/GPRS modem


Data concentrator for data collection from substation level peripheral devices and for communication protocol adaptation to control centre.

RTU IO modules


Analog Input RTU Module

  • 12 analog inputs
  • RS-232 and RS-422 interfaces
  • IEC 60870-5-101


Digital Input RTU Module

  • 24 optically isolated digital inputs
  • RS-232 and RS-422 interfaces
  • IEC 60870-5-101


Digital Output RTU Module

  • 5 double digital outputs with onboard output relays
  • RS-232 and RS-422 interfaces
  • IEC 60870-5-101

Communication devices


3G or 4G GPRS modem, router and RTU module with 1 or 4 Ethernet ports. Also used as standalone NTP server.

Telem-4XFO - Fiber-Optic Star Coupler

Telem-4xFO is used for building up point-to-multipoint optical communication solution.

Telem-FO11 - Fiber-Optic Asynchronous Modem

Plastic (650nm) or glass (820nm) fiber multimode transmitters/receivers


Interfaces our data concentrators and RTU IO modules with GARMIN GPS products

AS Martem Laki 25, 12915 Tallinn, Estonia
Phone: (+372) 639 7979 E-mail: martem [at] martem dot eu