ADC higain h2tu-c-319 list 4e Manuale Utente
Appendix E - Abbreviations
LTPH-UM-1049-02, Issue 2
76
January 9, 2002
H2TU-C-319 List 4E
A
PPENDIX
E - A
BBREVIATIONS
A
ACO:
Alarm Cutoff
ACON: Auto Conversion of DS1 frame
ACQ:
Acquisition
ADSI: Active DSX-1
AIS:
Alarm Indication Signal
ALRM: Alarm Condition
AMI:
Alternate Mark Inversion
AUX:
Auxiliary
AWG: American Wire Gauge
B
B8ZS: Bipolar with 8-Zero Substitution
BER:
Bit Error Rate
BPVT: Bipolar Violation Transparency
BRG: Bridge
C
CLEI: Common Language Equipment Identifier
CLOC: Customer Local Loopback
CO:
Central Office
CREM: Customer Remote Loopback
CSA:
Carrier Service Area
CTHR: Cut-through
D
DBER: DS1 Bit Error Rate
DDS: Digital Data Service
DLC:
Digital Loop Carrier
DSX-1: DS1 Cross-Connect Frame
E
ECI:
Equipment Catalog Item
ES:
Errored Seconds
ESD:
Electrostatic Discharge
ESF:
Extended SuperFrame
ES-L: Errored Seconds-Line
ES-P: Errored Seconds-Path
EXZ:
The occurrence of 8 consecutive zeroes for B8ZS or 16
for AMI
F
FCON: Framed Conversion of DS1 frame
FERR: Framing Bit Error
FLDL: Flash Download
G
GFD:
Ground Fault Detect
H
H2TU-R: HiGain HDSL2 Remote Unit
HBER: HDSL2 Block Error Rate
HCDS: High Capacity Digital Service
I
ID:
Identification
L
LA:
Loop Attenuation
LAIS: Line Alarm Indication Signal
LATT: Loop Attenuation
LED:
Light Emitting Diode
LIU:
Line Interface Units
LLOS: Local Loss of Signal
LOS:
Loss of Signal
LOSW: Loss of Sync Word
LPF:
Line Power Feed
LRAI: Remote Alarm Indicator
M
MAL: Margin Alarm
MONE: Monitor Equipment
MONF: Monitor Facilities
MSEC: Monitored Seconds
MTA: Metallic Test Access