- severely errored framing seconds
- Information technology: SEFS (DS1/E1, DS3/E3)
Универсальный русско-английский словарь. Академик.ру. 2011.
Универсальный русско-английский словарь. Академик.ру. 2011.
SEFS — abbr. Severely Errored Framing Seconds (DS1/E1, DS3/E3) … United dictionary of abbreviations and acronyms
ITU G.992.1 — In telecommunications, ITU G.992.1 (better known as G.DMT) is an ITU standard for ADSL using discrete multitone modulation. G.DMT full rate ADSL expands the usable bandwidth of existing copper telephone lines, delivering high speed data… … Wikipedia