Telem-4XFO - Fiber-Optic Star Coupler

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

  • Plastic (650nm) or glass (820nm) fiber multimode transmitters/receivers
  • Speed up to 115200 bit/s
  • Configuration using DIP-switches
  • RS-232 or optical master interface
  • 4 or 3 (depending on master interface) optical parallel downward channels
  • Daisy-chain connection for up to 30 modules via RS-422 interface
  • Power supply 10…48 V DC

Datasheet (PDF)

User Manual (PDF)


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


AS Martem Laki 25, 12915 Tallinn, Eesti
Telefon: (+372) 639 7979 E-mail: martem [ät] martem dot eu