IEVref:704-10-27ID:
Language:enStatus: Standard
Term: 15-supergroup assembly
Synonym1: (15-supergroup) hypergroup
[Preferred]
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Definition: 1. an assembly, obtained by frequency division multiplexing, of 15 supergroups in adjacent positions in a frequency band of specified width, with guard bands between adjacent supergroups

2. a frequency band of standardized width, 3 716 kHz, in a multichannel carrier system and occupying one of a number of specified positions in the spectrum

NOTE 1 – "15-supergroup assembly" is the only term in use by the CCITT.

NOTE 2 – The French word "hypergroupe" or the English word "hypergroup" is sometimes used for a supergroup assembly different from that standardized by CCITT. Accordingly, this term should be qualified by the number of super-groups used in each application.

NOTE 3 – A 15-supergroup assembly is normally an assembly of 900 FDM telephone channels.

NOTE 4 – 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 assigned to a 15-supergroup assembly.


Publication date:1993-08
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