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NCT480 IP DSLAM User Guide YML856 Rev3
92 www.netcomm.com.au
APPENDIX A ABBREVIATIONS AND ACRONYMS
The abbreviations and acronyms used in this document.
Abbreviations Full Name
AAL
ATM Adaptation Layer
ADSL
Asymmetric Digital Subscriber line
AIS
Alarm Indication Signal
ATM
Asynchronous Transfer Mode
ATU-C
ADSL Transceiver Unit at the central office end
ATU-R
ADSL Transceiver Unit at the remote end
CBR
Constant Bit Rate
CV
Coding Violation
DSLAM
Digital Subscriber line Access Multiplexer
ES
Error Seconds
EOA
Ethernet over ATM
GE
Gigabit Ethernet
IP
Internet Protocol
LAN
Local Area Network
LOF
Loss of Frame
LOS
Loss of Signal
LPR
Loss of Power
OAM
Operation, Administration, and Maintenance
PCR
Peak Cell Rate
PSD
Power Spectral Density
PVC
Permanent Virtual Channel
rtVBR
Real time Variable Bit Rate
SCR
Sustainable Cell Rate
SNR
Signal-to Noise Ratio
SNMP
Simple Network Management Protocol
UAS
Unavailable Seconds
UBR
Unspecified Bit Rate
VC
Virtual Channel
VCI
Virtual Channel Identify
VCL
Virtual Channel Link
VDSL
Very high-speed Digital Subscriber line