RSW100 Redundancy Switch

RSW100 is a seamless Redundancy Switch for use in DAB+ transmission networks to provide redundancy protection.

The RSW100 can be operated in automatic mode or manual mode. In automatic mode, the output from the RSW100 is determined by the status of System 1 and System 2 equipment chains. If a fault is detected, the RSW100 will automatically select the proper input signal. In manual mode the user can designate the selected input source either from the interactive front panel, via a remote web interface or via SNMP.

The switching does not cause any interruptions in the transmission, i.e. the COFDM will not lose synchronisation to the incoming ETI stream. This is achieved by preserving the frame phase of the ETI stream and by updating the timestamp values before transmitting. The RSW100 will also preserve the frame counter if the input signals are aligned within certain limits.

Typical Applications

  1. After two redundant DAB multiplexers (EMX100 or SMX100).
  2. Before a COFDM if dual transmission paths are used to feed the transmitter network from the multiplexer site.
  3. After two redundant DAB multiplexers (EMX100 or SMX100) and dual transmission paths are used to feed the transmitter network from the multiplexer site. The two RSW100 work in a redundant pair, i.e. if one of the RSW100 performs a changeover the other one will follow.