Telephone Hybrids

Audio Codecs

DAB/DAB+

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MAGIC SDC provides a seamless switching of redundant DAB Multiplexer systems.The system can be used as classic ETI switch for E1 G.703/G.704 lines or as EDI switch for IP networks. If the EDI Option is enabled, the system can also convert EDI to ETI and vice versa, so that DAB Multiplexers which do not support a native ETI still can be integrated into the existing ETI infrastructure.

 

Functionality

MAGIC SDC monitors the output signal of each DAB Multiplexer permanently. If an error is detected in a multiplex, the system switches automatically to the other input. In parallel the time stamp in the output signal of the switch can be re-generated, so that a continuous time stamp is guaranteed to arrive at the transmitter. To minimize the required input buffering, the Frame Counter (CIF) of the ETI output signal can be replaced additionally. The switching criteria and the switching behaviour (mono stable, bi-stable) can be configured by the user.

Two versions

The MAGIC SDC is available in two versions. It can be equipped with 4 LAN interfaces and 1 ETI input/output or alternatively with 2 LAN interfaces and 2 ETI inputs/outputs.


Further Features:

  • Alarm memory
  • GPS inputs: 10 MHz (alternatively 2,048 MHz) and 1 PPS
    (time reference via NTP)
  • External alarm signalling via 8 relay outputs and 8 TTL GPIOs
  • Link Mode for redundant operation

Control

The system is operated via LAN using the Windows PC Software. Via SNMP V2 MAGIC SDC can be integrated in a network management system.

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