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DEFINITIONSASYNCHRONOUS TRANSFER MODE
CHCHANNEL
DS1DIGITAL SIGNAL 1 (=T1), 24 DS0 CHANNELS
DS3DIGITAL SIGNAL LEVEL 3 T-CARRIER (ALSO CALLED T3) = 28 DS1 CHANNELS
E1A EUROPEAN DIGITAL TRANSMISSION FORMAT EQUIVALENT TO THE N. AMERICAN T-CARRIER SYSTEM
E3EUROPEAN DIGITAL TRANSMISSION FORMAT LEVEL 3 EQUIVALENT TO N. AMERICAN T3
FRFRAME RELAY
GPSGLOBAL POSITIONING SYSTEM
OC12OPTICAL CARRIER LEVEL 12 UP TO 622MBIT/S, SONET EQUIVALENT TO SDH STM-4
OC3OPTICAL CARRIER LEVEL 3 UP TO 155MBIT/S, SONET EQUIVALENT TO SDH STM-1
OC48OPTICAL CARRIER LEVEL 48 UP TO 2.5GBIT/S, SONET EQUIVALENT TO SDH STM-16
STM1SYNCHRONOUS TRANSPORT MODULE LEVEL 1, BASIC UNIT OF FRAMING IN SDH
STM4SYNCHRONOUS TRANSPORT MODE 4 AT 622MBIT/S, SDH EQUIVALENT TO SONET OC-12
T1DIGITAL SIGNAL 1 (DS1, ALSO CALLED T1) IS A T-CARRIER SIGNAL DEVISED BY BELL LABS
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