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IEVref:704-10-19ID:
Language:enStatus: Standard
Term: mastergroup
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Definition: 1. an assembly, obtained by frequency division multiplexing of a specified number of supergroups, normally 5, in adjacent positions in a frequency band of specified width with guard bands between supergroups

2. a frequency band of standardized width, 1 232 kHz, in a multichannel carrier system and occupying one of a number of specified positions in the spectrum

NOTE 1 – A mastergroup is normally an assembly of 300 FDM telephone channels.

NOTE 2 – In the USA, a mastergroup is an assembly of 10 supergroups, normally 600 FDM telephone channels, with a bandwidth of 2 520 kHz.

NOTE 3 – Signals, other than those derived from an assembly of supergroups but having specified characteristics, may occupy the whole or a part of a frequency band normally assigned to a master group.


Publication date:1993-08
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