DEFINITIONS

ADD-DROP MULTIPLEXER

CHANNEL

COARSE WAVELENGTH DIVISION MULTIPLEXING

DIGITAL SIGNAL 1 (=T1), 24 DS0 CHANNELS

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

4TH GENERATION CHANNEL BANK (48 VOICE CHANNELS ON 2 T-1 OR 1 T-1C)

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

GIGABIT ETHERNET

GIGABIT INTERFACE CONVERTER

INTERNET ROUTER

OPTICAL CARRIER LEVEL 192 UP TO 10GBIT/S, SONET EQUIVALENT TO SDH STM-64

SMALL FORM-FACTOR PLUGGABLE GBIC, A HOT-PLUGGABLE OPTICAL TRANSCEIVER FOR SONET & ETHERNET

SINGLE-MODE

SYNCHRONOUS OPTICAL NETWORK, MULTIPLEXING PROTOCOL IN THE U.S. AND CANADA

TRANSMITTER / RECEIVER