User Manual

6 Appendix
6.1 Abbreviations & Acronyms
A/D, ADC Analog-to-Digital, Analog-to-Digital Converter
ABAM Designation of Lucent for twisted pair cable to connect ADM switch to T1
distribution panel
ADM Add/Drop Multiplexer
ADPCM Adaptive Differential Pulse Code Modulation
A
d
TPC Adaptive Power Control
AGC Auto Gain Control
AIS Alarm Indication Signal
ATM Asynchronous Transfer Mode
BER Bit Error Rate
CLEC Competitive Local Exchange Carrier
CMRR Common Mode Rejection Ratio
CO Central Office
Codec Coder-Decoder
CPE Customer Premise Equipment
CPU Central Processing Unit
CPFSK Continuous-Phase Frequency Shift Keying
CSU Channel Service Unit
D/A, DAC Digital-to-Analog, Digital-to-Analog Converter
DB Decibel
DBc Decibel relative to carrier
DBm Decibel relative to 1 mW
DBu Decibel relative to .775 Vrms
DCE Data Circuit-Terminating Equipment
DMM Digital Modem Module
DSP Digital Signal Processing
DSTL Digital Studio-Transmitter Link
DTE Data Terminal Equipment
DVM Digital Voltmeter