即将出台：插头和插孔测试标准
一条分类线缆能否提供您需要的带宽和容量，取决于安装性能：安装完毕后，该线缆能否实现其承诺？
如果线缆在拉动过程中损坏，连接没有正确端接，线缆制造不正确或环境不利于期望的网络性能，线缆的性能可能达不到预期。出于这个原因，确保线缆和组件在安装完毕后达到特定参数至关重要。
线缆测试验证安装工作是按照要求的标准进行的，没有发生损坏，所有的连接都已正确端接，以提供您期望的性能。如果发现问题，可以及早修复，以防止出现意外停机和其它令人沮丧的问题。
ANSI/TIA-568C.2 is the current standard that cable should be tested to – it describes all elements of a structured cabling infrastructure, including requirements for cables, permanent links, connectors, hardware and patch cords. ANSI/TIA-568C.2 is currently being modified to include all current addendums, including Category 8 cable. The next version, which will be released in late 2018, will be called ANSI/TIA-568.2-D.
The updated version will also include a normative Annex F – Modular Plug Terminated Link, which performance can be measured and compared to for modular plug terminated links (MPTLs) – also known as Direct Connect. This connection method simplifies LAN infrastructure by allowing plugs to be placed at the ends of horizontal cabling and run straight to IP devices.
MPTLs are tested as jack to plug, and meet all requirements of a permanent link. Proper testing requires a permanent link adapter and patch cord test head. Below are methods for testing MPTLs and permanent link configurations. Each is accompanied by a figure that represents the testing topology.
Jack-to-Jack Tests
Requirements:
- Main and remote field testers
- Permanent link adapters (x2)
- Actual permanent link being tested
There are four steps to follow during jack-to-jack tests:
- Install the tester and remote unit on both sides of the permanent link
- Select the cable type to be tested
- Select the “permanent link” limit with the appropriate category and standards
- Test all permanent links
Plug-to-Jack Tests
Requirements:
- Main and remote field testers
- Permanent link adapter
- Patch cord test head
- Actual permanent link being tested
There are four steps to follow during plug-to-jack tests:
- Install the tester and remote unit on both sides of the permanent link
- Select the cable type to be tested
- Select the “MPTL” limit with the appropriate category and standards
- Test all permanent links
Plug-to-Jack Tests (Belden Alternative)
<pRequirements:- Main and remote field testers
- Permanent link adapters (x2)
- Belden coupler test adapter AX104552
- Actual permanent link being tested
There are four steps to follow during plug-to-jack tests:
- Install the tester and remote unit on both sides of the permanent link
- Select the cable type to be tested
- Select the “permanent link” limit with the appropriate category and standards
- Test all permanent links
REVConnect Testing
The Belden REVConnect Connectivity System is a form of Direct Connect, which allows contractors to terminate a jack or plug onto the same universal core interface; its universal wiring manager supports Category 5e, 6 and 6A cables. It allows field-terminable plugs used to support Category 6A and PoE applications to be terminated just as easily as a jack.
With REVConnect, a single termination process works for every application. You can switch from a jack to a plug or vice versa without having to re-terminate. Learn more here.
关于作者
Ron Tellas是射频设计和电磁传播领域的主题专家，于2016年加入Belden，帮助确定智能建筑的技术和应用路线图。现在，他利用这些经验将系统、设备和连接整合到网络解决方案中。Ron代表Belden参加了多个标准组织、国家电气规范委员会，并担任FMP联盟的董事会成员。他拥有电气工程硕士和学士学位、工商管理硕士学位，而且是17项美国专利的发明者。Ron因其对电信行业的杰出而有影响力的贡献而荣获2024年度Harry J. Pfister大奖。