下载中心  |   网站地图  |   站内搜索  |   加入收藏
*新更新
业界动态
产品信息
安恒动态
技术文章


安恒公司 / 技术文章 / 布线测试与布线标准 / 跳线认证测试--如何使用跳线测试适配器测试双绞线跳线
跳线认证测试--如何使用跳线测试适配器测试双绞线跳线
2006-06-16    安恒公司整理       阅读:

Patch Cord Certification - DSP Patch Cord Adapter

Important note and change in procedure for certifying category 5e patch cords

Until recently, it has been possible to certify category 5e and 6 patch cords with the same category 6 test jack, based on ANSI/TIA/EIA-568-B.2. Within that standard, certain assumptions were made. One of these assumptions was that vendors making category 5e patch cords would not use high value NEXT RJ45 plugs. However, vendors are starting to use these high value NEXT plugs (category 6 plugs) when making category 5e cords. This means that the NEXT results could be optimistic (too good) when using a category 6 test jack.

Users certifying category 5e patch cords should migrate across to a category 5e test jack as soon as possible. It can be obtained from

Superior Modular Products

33 Superior Way

Swannanoa, NC 28778, USA

Tel: + 1 828 298 2260

http://www.superiormod.com

Part No. PCTAC5e to be used with Database Version 5.17C

In addition, users will need to update the database on their DSP-4x00 CableAnalyzers, as different limit lines are used for this category 5e test jack. These new limit lines are the same as those found the in the DTX CableAnalyzer.

Making this change will now will make you ready for the new ANSI/TIA/EIA-568-C standard. Even if you are not using high value NEXT RJ45 plugs, you should migrate across to the new jack and test limits as soon as possible. Especially if you are using DTX CableAnalyzers to certify patch cords.

Can I use my Channel Adapters (DSP-LIA012 & DSP-LIA013) to Certify Patch Cords?

No. The test limits for patch cord certification are different to that of channel limits. The Channel test does not include the connection to the adapters, the part we are really interested in for patch cord certification. Whenever you run a channel test, the ‘3 dB rule’ for return loss is implemented. This means that you cannot fail return loss on category 5e patch cords less than 13 meters (assuming 20% additional attenuation over solid horizontal cable).

Certifying Screened Patch Cords

The DSP-PCI-6S are a set of adapters that will certify UTP (unshielded) cords to both ANSI/TIA/EIA-568-B.2-1 and IEC 61935-2. However, the jacks used in the adapters are not screened. This means that you can certify a screened patch cord but you will not be able to verify the continuity of the screen with these adapters – a separate wire map test will be required. To date, we have not been able to find a screened jack which meets these very specific transmission performance requirements. It must be emphasized that every jack in the DSP-PCI-6S is qualified on a Laboratory Network Analyzer. This is because the tolerance for jack performance stated in ANSI/TIA/EIA-568-B.2-1 and IEC 61935-2 is very strict / tight. It is hoped that in the near future Fluke Networks will be able to offer a screened solution.

DSP-LIA006

This is the adapter nomenclature for the DSP-PCI-6S Adapters. This will appear on the printed Autotest report.

 

Photos

      

Length has no limit

This is not a pass/fail criteria for patch cord testing. Therefore, there is no limit line. However, the length is recorded for documentation purposes. Due to the impedance matching circuitry in the remote adapter, required for accurate RL measurements, you can expect the length to report approximately 0.5 m (2 ft) more than the physical length of the patch cord.

How many times can I replace the test jack?

The jack can be replaced up to 10 times – with care – by the user. Each jack should last >5,000 insertions so long as properly terminated RJ45 plugs are used. If the IPCs are not crimped fully, this can damage the jack.


Product class        DSP Patch Cord Adapter
Author                 ayoung
Creation date        7/11/2005 10:00 AM
Last modified         4/19/2006 2:02 PM
Document Id         EVE- 110 705-AY 100 0
责任编辑: admin

相关文章
FLUKE DTX系列线缆认证测试仪常见技术问题汇编(DTX-LT,DTX-1200,DTX-1800,DTX-OTDR-QMOD,DTX-MFM2,DTX-SFM2  10-05-20 - 阅: 243557
DTX-PCU6S 网络跳线测试解决方案  07-10-25 - 阅: 200648
易被忽略的布线测试环节--再谈跳线测试的重要性  06-03-22 - 阅: 445877
安恒公司布线认证测试服务升*,增加时域测试参数  06-03-15 - 阅: 380772
DTX升*电缆认证测试仪新增DTX-NSM网络测试模块  06-03-10 - 阅: 319251
CCTT布线认证测试工程师培训与工程实践  05-04-21 - 阅: 568762
综合布线认证测试实验课第*次开课  05-04-20 - 阅: 530108
如何选择综合布线系统测试与维护仪器(验证测试仪|鉴定测试仪|认证测试仪)  05-04-03 - 阅: 277803
认证测试仪|鉴定测试仪|验证测试仪选择指南  05-04-03 - 阅: 260162
布线链路的鉴定测试、认证测试和验证测试的区别  05-03-30 - 阅: 272720
DTX布线认证测试仪新版本支持中国国家标准,福禄克电缆测试仪  05-03-27 - 阅: 309038
DTX新测试附件上市-铜缆|光缆|跳线测试适配器  05-02-18 - 阅: 264305
对语音/数据/视频网络施工进行认证测试的重要性  05-01-29 - 阅: 262776
布线工艺要求--通过布线认证测试的基础  04-12-20 - 阅: 275710
100%的验收测试>质量保证|布线认证测试的重要性  04-12-16 - 阅: 283817
光纤链路现场认证测试(*) 光缆测试 OptiFiber  04-11-06 - 阅: 333287
OptiFiber重大升*|TIA TSB-140二*测试要求的光缆链路认证测试仪OTDR  04-11-05 - 阅: 324551
福禄克网络推出DSP-LT超5类布线认证测试仪  04-11-01 - 阅: 304055
布线系统验收尺度和装成后质量保证, 布线认证测试, 第三方测试  04-10-01 - 阅: 259347
在测试布线系统时,愿望不等于质量保证, 白皮书 布线认证测试  04-09-30 - 阅: 248876
相关产品
高性价比的线缆认证测试仪  14-05-06 - 阅: 904636
DTX Compact OTDR光缆认证测试仪与双绞线认证测试仪二合*的产品方案  07-06-24 - 阅: 1252503
DSP-4000系列数字式电缆测试仪认证测试工程验收  04-05-31 - 阅: 1512980
DTX系列电缆认证分析仪-布线认证测试专家Fluke电缆测试仪验收测试  08-03-11 - 阅: 2285521
数字式5类布线认证测试仪 Fluke DSP-100  03-11-27 - 阅: 1577425

Email给朋友 打印本文
版权所有·安恒公司 Copyright © 2004   btrfs.anheng.com.cn   All Rights Reserved    
      北京市海淀区*体南路9号 主语国际商务中心4号楼8层 安恒公司(邮编100048) 电话:010-88018877