Datasheet > 4000-TDR

4000-TDR

更新时间： 2022-12-19 02:50:55

品牌	Logo	应用领域
捷迪讯 - JDSU		测试
页数	文件大小	规格书
8页	1601K
描述
T-BERD®/MTS-4000Multiple Services Test Platform

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

4000-TDR 数据手册

T-BERD/MTS-4000 COPPER SERVICES MODULE

Overview of Copper Tests

Today’s copper network requires rigorous testing. The T-BERD/MTS-4000

equipped with Copper Services Modules performs these essential tests and more:

Copper Test

Test Function

What it Tests

Why it is Needed

Fault Impact

DVOM

DSL service qualification and

troubleshooting

DSL service qualification and

troubleshooting

DSL service qualification and

troubleshooting

DSL with POTS service installation

and troubleshooting

DC/AC voltage,loop current,loop

resistance,distance-to-short,leakage

Capacitance,loop length

Overall copper health

No DSL synchronization or low data rate

Opens

Cable damage,loop length acceptable

for DSL

Load coils act as low-pass filters and

must be removed

The longer the cable,the higher the

attenuation,and the lower the data rate

Load coils prevent DSL service

Load Coil

POTS

Presence of load coils and location

Placing a POTS call

Connectivity to exchange

No POTS

Balance

Noise

DSL service qualification and

troubleshooting

DSL service qualification and

troubleshooting

Longitudinal balance,Resistive

balance,Capacitive balance

Noise with specific band filters

Robustness against noise

Noise decreases the bits-per-tone

load/data rate

Noise decreases the bits-per-tone

load/data rate

External noise corrupts good data

Impulse Noise

DSL troubleshooting

Voltage spikes above specific thresholds

Intermittent effects that cannot be

corrected by forward error correction

(FEC)

Impulse noise may lead to continuity

errors including IPTV pixilation and data

retransmission

Loss

DSL service qualification and

troubleshooting

Rx/TxTones

Attenuation of copper cable

Reduced DSL data rate

SNR

DSL service qualification and

troubleshooting

DSL service qualification and

troubleshooting

Signal compared to noise level

Impedance mismatch

Enough margin to sustain data rate in

changing conditions

Impedance mismatch—using multiple Reduced data rate

cable types,causes energy to reflect

Temporary loss of signal or reduced data

rate possible

Return Loss

Near-End Crosstalk (NEXT) DSL troubleshooting

Noise from near-end

Impact of multiple broadband services

in the cable

Reduced data rate

Spectral Analysis

DSL troubleshooting

Spectral noise per frequency

Impedance anomaly and location

Identify the characteristics of a noise

source to fix the problem

Detect and locate faults such as opens,

shorts,bridged taps,and wet sections

Resistive fault detection and location

Reduced data rate

TDR

RFL

No sync or reduced data rate

Reduced data rate

Pair under test against a reference

using ohmmeter

1 234 5 6 7 8

下载PDF

与4000-TDR相关器件

型号	品牌	描述	获取价格	数据表
4000-WBTONES	JDSU	T-BERD®/MTS-4000Multiple Services Test Platfo	获取价格
4000Z	EBMPAPST	AC fans with external rotor shaded-pole motor. Impedance protected against overloading	获取价格
4001	GRAYHILL	Momentary or Momentary With Positive Feel	获取价格
40-01/B4C-AJMB	EVERLIGHT	Single Color LED, Blue, Water Clear, ROHS COMPLIANT PACKAGE-4	获取价格
40-01/G4C-AQSB	EVERLIGHT	Dome POWER LED 30	获取价格
40-01/T4C-4PRB	EVERLIGHT	Dome POWER LED	获取价格

与4000-TDR相关文章

MAX6675资料手册参数详解、引脚配置说明
2024-05-13

10
LM258引脚图及功能介绍、主要参数分析
2024-05-13

6
CD4052资料手册参数详解、引脚配置说明
2024-05-13

7
一文带你了解TPS5430资料手册分析：参数介绍、引脚配置说明
2024-05-13

6

产品中心

服务支持

精选活动

关于我们

帮助中心

4000-TDR

4000-TDR 数据手册

与4000-TDR相关器件

与4000-TDR相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

4000-TDR

4000-TDR 数据手册

与4000-TDR相关器件

与4000-TDR相关文章

您还可以找

您在本页遇到什么问题？