DEFINITIONS

MAINSTREET MULTISERVICE BWM

MAINSTREET ATMNET ACCESS SWITCH

MSC MULTISERVICE CONCENTRATOR

ASAM DSL PLATFORM

MSWAN MSP MULTI-SERVICE PLATFORM, FORMERLY MAINSTREET XPRESS 36170

ALTERNATING CURRENT

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

ADVANCED SERVICES ACCESS MANAGER

ASYNCHRONOUS TRANSFER MODE

CLOCK UNIT (SUCH AS CLK202)

CENTRAL OFFICE

CUSTOMER PREMISE EQUIPMENT

CENTRAL PROCESSING UNIT 2

DIGITAL SIGNAL 1 (=T1), 24 DS0 CHANNELS

DUAL SWG (SECURE WEB GATEWAY) CARD

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

EUROPEAN DIGITAL TRANSMISSION FORMAT LEVEL 3 EQUIVALENT TO N. AMERICAN T3

EDGE SERVICES EXTENDER

INPUT/OUTPUT

INTERMEDIATE REACH

MESSAGE BUFFER

MULTI-MODE FIBER

NETWORK INTERFACE CARD

NETWORK TERMINATION UNIT

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

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

OPTICAL CARRIER LEVEL 12 UP TO 622MBIT/S, SONET EQUIVALENT TO SDH STM-4

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

8-PORT

PLAIN OLD TELEPHONE SERVICE

4-PORT

RECOMMENDED STANDARD 232

SOFTWARE

SINGLE-MODE FIBER

SHELF PROCESSOR

SHORT-REACH

SYNCHRONOUS TRANSPORT MODULE LEVEL 1, BASIC UNIT OF FRAMING IN SDH

SYNCHRONOUS TRANSPORT MODE 4 AT 622MBIT/S, SDH EQUIVALENT TO SONET OC-12

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

TRANSMIT UNIT

Unshielded Twisted Pair

VT (VIRTUAL TRIBUTARY) SWITCH CARD