DEFINITIONS

ASYMMETRIC DIGITAL SUBSCRIBER LINE, 8 MBIT/S DOWN, 1.0 MBIT/S UP

DIGITAL SIGNAL LEVEL 3 T-CARRIER (ALSO CALLED T3) = 28 DS1 CHANNELS

DIGITAL SIGNAL CROSS-CONNECT LEVEL-1, A POINT WHERE DS1 SIGNALS INTERCONNECT AT CO LOCATIONS

A EUROPEAN DIGITAL TRANSMISSION FORMAT EQUIVALENT TO THE N. AMERICAN T-CARRIER SYSTEM

FERRULE CONNECTOR, FIBER CONNECTOR WITH SCREW-ON COUPLING, BECOMING LESS COMMON

INTERMEDIATE REACH

LONG-REACH

MULTI-LINK TRUNKING

MULTI-MODE

MULTIPLEXER

CONCATENATES (3) STS1/OC1 FRAMES INTO (1) OC-3 LOOK ALIKE STREAM

OPTICAL CARRIER LEVEL 3 UP TO 155MBIT/S, SONET EQUIVALENT TO SDH STM-1

STANDARD CONNECTOR, FIBER CONNECTOR WITH SQUARE SNAP COUPLING (PUSH-PULL)

SINGLE-MODE

DIGITAL SIGNAL 1 (DS1, ALSO CALLED T1) IS A T-CARRIER SIGNAL DEVISED BY BELL LABS

DIGITAL SIGNAL LEVEL 3 T-CARRIER (ALSO CALLED DS3) = 28 DS1 CHANNELS