DEFINITIONS

UNIVERSAL MODULAR CARRIER; ALSO UMC1000

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

ASYMMETRIC DIGITAL SUBSCRIBER LINE, 12 MBIT/S DOWN, 1.0 MBIT/S UP

ASYMMETRIC DIGITAL SUBSCRIBER LINE, 24 MBIT/S DOWN, 1.0 MBIT/S UP

CENTRAL PROCESSING UNIT

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

EAR AND MOUTH SIGNALING

EXPANSION BANK CONTROL

GIGABIT ETHERNET

HIGH BIT RATE DIGITAL SUBSCRIBER LINE (4-WIRE)

LINE EQUIPMENT TRANSFER

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

OPTICAL NETWORK TERMINAL

PASSIVE OPTICAL NETWORK

PLAIN OLD TELEPHONE SERVICE

REMOTE EQUIPMENT MODULE

REMOTE SUBSCRIBER TERMINAL

SYNCHRONOUS TRANSPORT SIGNAL

TRANSMITTER / RECEIVER

UNIVERSAL VOICE GRADE