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LTPH-UM-1031-03, Issue 3 Appendix E - Abbreviations
H4TU-C-319 List 1 September 12, 2003 67
APPENDIX E - ABBREVIATIONS
A
ACO: Alarm Cutoff
ADSL: Asymmetyric Digital Subscriber Line
AIS: Alarm Indication Signal
ALM: Alarm
ALMP: Alarm Pattern
AMI: Alternate Mark Inversion
AOR: Addressable Office Repeater
ARM: Armed
ASCII: American Standard Code for Information Interchange
AWG: American Wire Gauge
B
B8ZS: Bipolar with 8-Zero Substitution
BER: Bit Error Rate
BERT: Bit Error Rate Tester
BPV: Bipolar Violation
BPVT: Bipolar Violation Transparency
BRG: Bridge
C
CEV: Controlled Environmental Vault
CI: Customer Installation
CLEI: Common Language Equipment Identifier
CLOC: Customer Local Loopback
CO: Central Office
COLB: Central Office Loopback
CPE: Customer Premises Equipment
CRC: Cyclical Redundancy Check
CREM: Customer Remote Loopback
CSA: Carrier Service Area
CV: Code Violation
CV-L: Code Violation - Line
CV-P: Code Violation - Path
D
DBER: DS1 Bit Error Rate
DDS: Digital Data Service
DL: Data Link
DLC: Digital Loop Carrier
DS1: Digital Signal, Level 1
DSX-1: Digital Signal Cross-Connect, Level 1
E
ECI: Equipment Catalog Item
EQL: Equalization
ESD: Electrostatic Discharge
ESF: Extended SuperFrame
ES-L: Errored Seconds - Line
ES-P: Errored Seconds - Path
F
FE: Far End
FRMG: Framing
H
H4TU-C: HDSL4 Line Unit
H4TU-R: HDSL4 Remote Unit
HBER: HDSL4 Block Error Rate
HCDS: High Capacity Digital Service
HDSL: High-bit-rate Digital Subscriber Line
HG: HDSL Generic
HMU: HiGain Management Unit
I
ID: Identification
ILR: Intelligent Repeater Loop
IN: Transmit
INSL: Insertion Loss
IOR: Intelligent Office Repeater