Edimax Technology AR-7211B - Manual (Page 60)

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APPENDIX B: ABBREVIATIONS
ADSL Asymmetric Digital Subscriber Line
ATM Asynchronous Transfer Mode
ATU C ATU at the central office end (i.e., network operator)
ATU R ATU at the remote terminal end (i.e., CP)
BER Bit Error Ratio
CO Central office
CPE Customer Premises Equipment
CRC Cyclic Redundancy Check
DC Direct Current
DSL Digital Subscriber Line
HEC Header Error Control
IDFT Inverse Discrete Fourier Transform
LOF Loss-of-frame defect
LOS Loss-of-signal defect
MIB Management Information Base
Modem (MOdulator, DEModulator)
NMS Network Management System
OAM Operations, Administration and Maintenance
POTS Plain old telephone service
PSTN Public Switched Telephone Network
PVC Persist Virtual Circuit
QAM Quadrature Amplitude Modulation
SNR Signal to Noise Ratio
TP Twisted Pair
VPN Virtual Private Network