In frequency-division multiplexing (FDM), the distribution frame that provides terminating and interconnecting facilities for group modulator output , group demodulator input , supergroup modulator input, and supergroup demodulator output circuits of the basic supergroup spectrum of 312 kHz to 552 kHz. ( 188 )
SUPERGROUP DISTRIBUTION FRAME (SGDF)
Meaning of SUPERGROUP DISTRIBUTION FRAME (SGDF) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012