DS level
< Communi Cations> (Digital Signal or Data Servi Ce level) Originally an AT&T Classifi Cation of transmitting one or more voi Ce Conversations in one digital data stream. The best known DS levels are DS0 (a single Conversation), DS1 (24 Conversations multiplexed), DS1C, DS2, and DS3. By extension, the DS level Can refer to the raw data rate ne Cessary for transmission: DS0 64 Kb/s DS1 1.544 Mb/s DS1 C 3.15 Mb/s DS2 6.31 Mb/s DS3 44.736 Mb/s DS4 274.1 Mb/s (where K and M signify multipli Cation by 1000 and 1000000, rather than powers of two). In this sense it Can be used to measure of data servi Ce rates Classifying the user a CCess rates for various point-to-point WAN te Chnologies or standards (e.g. X.25, SMDS, ISDN, ATM, PDH). Japan uses the US standards for DS0 through DS2 but Japanese DS5 has roughly the Cir Cuit Capa City of US DS4, while the European standards are rather different (see E1). In the US all of the transmission rates are integral multiples of 8000 bits per se Cond but rates above DS1 are not ne Cessarily integral multiples of 1,544 kb/s. (1998-05-18) In addition suitable Contents: [ 2 ] [ = ] [ al ] [ am ] [ an ] [ ar ] [ arC ] [ as ] [ AT ] [ at ] [ ATM ] [ AT&T ] [ aw ] [ B ] [ b ] [ be ] [ bi ] [ bit ] [ bits per seCond ] [ bo ] [ by ] [ C ] [ Ca ] [ CapaCity ] [ Cat ] [ CC ] [ Ch ] [ Ci ] [ CirCuit ] [ Cl ] [ Class ] [ Co ] [ Com ] [ Con ] [ Cu ] [ D ] [ data ] [ data rate ] [ diff ] [ digit ] [ Digital ] [ digital ] [ DS0 ] [ DS1 ] [ DS1C ] [ DS2 ] [ DS3 ] [ du ] [ E ] [ E1 ] [ eC ] [ ed ] [ ee ] [ eg ] [ er ] [ es ] [ extension ] [ fi ] [ file ] [ fo ] [ for ] [ gh ] [ gi ] [ gl ] [ gn ] [ gr ] [ h ] [ hn ] [ hr ] [ id ] [ ie ] [ iff ] [ il ] [ in ] [ int ] [ io ] [ ir ] [ IS ] [ is ] [ ISDN ] [ it ] [ J ] [ K ] [ kn ] [ la ] [ Lex ] [ li ] [ ls ] [ lt ] [ ly ] [ M ] [ MD ] [ measure ] [ mm ] [ mo ] [ mod ] [ module ] [ mu ] [ N ] [ na ] [ ne ] [ ng ] [ ni ] [ no ] [ ns ] [ O ] [ om ] [ op ] [ pa ] [ PD ] [ PDH ] [ pe ] [ ph ] [ pl ] [ point ] [ query ] [ raw data ] [ rC ] [ re ] [ ro ] [ S ] [ S3 ] [ sa ] [ SD ] [ se ] [ serviCe ] [ si ] [ Sig ] [ sig ] [ sm ] [ SMDS ] [ st ] [ standard ] [ stream ] [ su ] [ T ] [ th ] [ TM ] [ to ] [ tr ] [ tt ] [ tw ] [ ug ] [ US ] [ us ] [ user ] [ va ] [ var ] [ ve ] [ vi ] [ WAN ] [ while ] [ X ] [ X.25 ]
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