Verilink AS2000: The Basics (880-502981-001) Product Manual Manual de usuario descargar pdf (Pagina 149)

Acronyms and Definitions

Verilink Access System 2000: Basics Glossary-29

LAN See

Local Area Network

LBO See

line build-out

LCV Line Coding Violation. A count of

both bipolar violations and

excessive zeros (greater than three

contiguous zeros) in DS3 services.

LED See

light emitting diode

LES Line Errored Second. A second in

which one or more

LCV

s occurred

OR one or more LOS defects.

light emitting diode An LED is a device that lights up

when the proper current is passed

through it. It is used on Verilink

modules for identifying power,

loops, errors, and other

conditions.

line build-out LBO is the attenuation signal

strength used by the CSU to the T1

network interface—determined by

the distance from the CSU to the

first line repeater. Choose: --0 db—

if your repeater is between 2000

and 3000 feet from the CSU, or if a

smart jack

is used: -- -7.5 db—if

your repeater is between 1999 and

1000 feet from the CSU. -- -15 db—

if your repeater is between 999

and 250 feet from the CSU.-- -22.5

db—if your repeater is between 0

and 249 feet from the CSU.

line code violation See code violation—line (CV-L).

line coding Technique used for encoding

binary data onto a T1/E1. Choices

are AMI or B8ZS for T1, B3ZS for

E1.

line loopback An LLB is a loop which takes the

signal from the network and loops

it back toward the network. The

loop does not allow the network

signal to pass through the CSU

(except for critical protection

circuitry and the repeater), making

it useful for testing the network

line.

1 2 ... 144 145 146 147 148 149 150 151 152 153 154 ... 178 179

Comentarios a estos manuales

Sin comentarios

Verilink AS2000: The Basics (880-502981-001) Product Manual Manual de usuario Pagina 149

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware De La Computadora Verilink AS2000: The Basics (880-502981-001) Product Manual