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LTPH-UM-1122-02, Issue 2
A
PPENDIX
A
ACO:
Alarm Cutoff
ADSL: Asymmetric Digital Subscriber Line
AIS:
Alarm Indication Signal
ALMP: Alarm Pattern
AMI:
Alternate Mark Inversion
AOR:
Addressable Office Repeater
ARM: Armed
ASCII: American Standard Code for Information Interchange
B
B8ZS: Bipolar with 8-Zero Substitution
BER:
Bit Error Rate
BERT: Bit Error Rate (BER) Tester
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
CREM: Customer Remote Loopback
CSA:
Carrier Service Area
CV:
Code Violation
CV-L: Code Violation - Line
D
DBER: DS1 Bit Error Rate Threshold
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
H4TU-C-388 List 1
E - A
BBREVIATIONS
September 12, 2003
H
H4TU-C: HDSL4 Line Unit
H4TU-R: HDSL4 Remote Unit
HBER: HDSL4 Block Error Rate
HG:
HDSL Generic
HMU: HiGain Management Unit
I
ID:
Identification
IN:
Transmit
INSL: Insertion Loss
IOR:
Intelligent Office Repeater
L
LA:
Loop Attenuation
LAIS: Local Alarm Indication Signal
LATT: Loop Attenuation
LBTO: Loopback Timeout
LED:
Light Emitting Diode
LLOS: Line (Unit) Loss of Signal
LOF:
Loss of Frame
LOSW: Loss of Sync Word
LPDN: Loopdown
LPF:
Line Power Feed
LRAI: Line RAI
M
M:
Margin
MAL:
Margin Alarm
MARG: Margin
MSEC: Monitored Seconds
N
NE:
Near End
NI:
Network Interface
NID:
Network Interface Device
NLBP: Network Loopback Pattern
NLOC: Network Local Loopback
NREM: Network Remote Loopback
O
OPAM: Overlapped Pulse Amplitude Modulation
OUT:
Receive
P
PBOC: Power Back Off - Customer
PBON: Power Back Off - Network
PL:
Payload
Appendix E - Abbreviations
69
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