Highly available data transmission for broadcasting stations

You are planning a distribution network for the interconnection of your broadcasting stations. Whether you employ FM, DAB, DAB+, DMB, DVB-T- or DVB-H, DRM or HD technology – all signals can be distributed via the same distribution network. A highly available transmission system will guarantee your customers an uninterrupted radio and TV experience.

An Add-Drop multiplexer in the centre receives the different signals for transmission between the studio and the transmitter stations. For this purpose Ethernet/IP or X.21 interfaces are employed for FM data and a V.24 interface for supplementary data e.g. RDS data.

For DAB, DAB+, DVB-T, DVB-H, DRM and HD the corresponding interfaces are activated with the desired bandwidth in the multiplexer (G.703 or Ethernet/IP).

The bundled signal and data (multiplex) are transported via copper lines, optical fibres or radio relay systems to the broadcasting stations from where they are transferred to the transmitter. At the same time network management and alarm data are transported back to the centre via the same communication channel.

A very high availability is achieved due to various protection mechanisms at the network and network element layers.


UMUX is a Multi-Service Access system that can provide a range of applications for dedicated network operators. Besides the Ethernet/IP interfaces all legacy interfaces are supported. Manifold network interfaces are integrated as well.

  • Ethernet/IP interfaces (10/100BaseT, Gigabit Ethernet)
  • Legacy interfaces (V/X, POTS, ISDN, G.703, RS-232, RS-485, I/O contacts)
  • Network interfaces (SDH up to STM-4 optical and electrical, SHDSL, G.703)
  • Add-Drop multiplexer
  • Extensive protection functions
    • Multiplex Section Protection (MSP)
    • Sub Network Connection Protection (SNCP)
    • Linear Trail Protection (LTP)
    • 1+1 Equipment Protection (EQP)
    • 1+1 Path Protection
    • Synchronous Equipment Timing Source (SETS)
    • EoS with Link Capacity Adjustment Scheme (LCAS)
    • Spanning Tree Protocol (STP)
    • Rapid Spanning Tree Protocol (RSTP)