专注福禄克测试仪销售与技术

认证测试仪,鉴定测试仪,验证测试仪的区别

???? 在当今的测试仪市场上，有着各种不同价格，当然功能和性能也不同的仪器。虽然这些测试仪都有其各自适合的领域， 但并不是所有的测试仪都能够满足TIA/ISO 标准的要求进行质量保证所需的认证测试。明确这些仪器之间的区别是非常重要 的，这样您才能够真正了解厂家对仪器的宣传，并能够选择出可以满足于您的工作所需要的测试仪。

认证测试仪——确保布线系统满足TIA/ISO 标准的要求
认证测试是所有线缆测试中要求最严格的。主要用于综合布线的集成商和网络最终用户。认证测试仪是唯一可以依照TIA 或ISO标准的要求给出“通过”或“失败”信息的仪器。测量结果可判定一条链路是否达到某个类别或级别（例如超5类/6类或D 级/E 级）的要求。对于综合布线的厂商来说，认证测试是其对已安装的布线系统提供质量保证的必要前提。例如福禄克公司的DTX-1800，DTX-1200，DTX-LT，DTX-CLT。

鉴定测试仪——判定已安装的链路是否可以支持某些网络速度和技术
“鉴定测试仪”是线缆测试仪中的新类别，帮助网络工程师诊断和鉴定布线系统。这类仪器可以判断已安装布线系统是否可以支持例如 100Base-Tx，VoIP，千兆以太网等技术的要求，并能快速区分故障是布线系统造成的还是网络问题。鉴定测试仪，例如FLUKE 网络公司的CableIQ，比验证测试仪的功能强很多，但不能达到对“认证测试仪”的要求。

验证测试仪——检验线缆的是否正确连接
验证测试仪进行基本的连通性测试，例如接线图，音频追踪等。有些验证测试仪还有额外的功能，比如使用时域反射技术测量线缆的长度或定位断电与断路的位置。例如：MS2-100。

???????? 验证测试仪可以解决的问题是：“线缆连接是否正确?”验证测试仪通常被网络工程师当作解决线缆故障的首选仪器。

　　鉴定测试仪可以解决的问题是：“布线系统能支持所选用的网络技术么?例如100Base-Tx ，千兆以太网等)” 鉴定测试仪功能更全，使得网络工程师可在其帮助下诊断现有布线系统和对交换机端口进行维护。

　　认证测试仪可以解决的问题是：“布线系统符合有关标准么?(例如TIA-568-B.1 六类链路或是ISO 11801 第2 版E 级链路的标准)”这类仪器适用于布线系统的专业人员，以确保新的布线系统完全满足布线系统相关标准的要求。

Cabling Installation & Maintenance 杂志

CI&M 杂志介绍了福禄克网络全新CableIQ电缆鉴定测试仪，同时解释了新测试类型——鉴定测试与认证测试和验证测试的区别。

此下为原文：

Fluke Networks today announced the availability of the new CableIQ Qualification Tester, the first cabling bandwidth tester for network technicians.
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The handheld tool is designed to show network technicians what speeds existing cabling can support and helps those technicians quickly solve network connectivity problems.
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Qualification is a new category of testers in the industry that meets the emerging needs of network technicians. In contrast to certification testers, which guarantee cabling installations comply to TIA/ISO performance standards, and verification testers, which test if the cable is connected correctly, qualification testers determine if an existing cabling link can support certain network speeds and technologies.
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CableIQ‘s qualification test helps techs troubleshoot connectivity problems, deploy new technologies like VoIP and upgrade to network to higher speeds. The qualification test determines if existing cabling can support 10Base-T, 100Base-TX, VoIP, and Gigabit Ethernet. Its ability to see cabling bandwidth, coupled with device speed and duplex detection, allows techs to isolate bandwidth-related cabling problems from network problems.
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When problems are determined to be cabling related, technicians can use CableIQ‘s diagnostics to locate performance faults. The result is faster problem resolution, fewer escalated trouble tickets and seamless upgrades to higher network speeds.
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CableIQ also identifies what is at the far end of any cabling link with infrastructure discovery. This allows the technician to see whether the port is connected to a switch, a PC, an analog phone line or an open cable, as well as verify device speed and duplex settings. Technicians can use the discovery mode to quickly map out their cabling infrastructures, verify moves, adds and changes, and improve switch utilization by freeing up and redeploying unused ports. All these tests can be done while the network is live.
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CableIQ‘s intelligent wiremap graphically maps the cable’s wiring configuration and shows the distance to opens and shorts to isolate faults easier. CableIQ will show which wire is open, and at what distance from the tester. In addition, CableIQ‘s remote ID accessories show the user, simultaneously, both the office location and the wiremap to that office.
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The tester uses IntelliTone digital signaling technology to precisely locate cables on both passive and active networks in even the most chaotic wiring closet. CableIQ generates both digital and analog tones for use with Fluke Networks’ IntelliTone Probe.