Development of standards for wiring test
June 2002, in the U.S. Telecommunications Industry Association (TIA) TR-42 committee meeting, the formal adoption of the six cabling standards, this classification will be TIA/EIA-568B standard appendix, it will be officially named as the ANSI/ TIA/EIA-568B.2-1-2002.The standard will also be International Organization for Standardization (ISO) approved standard number ISO / IEC 11801:2002.The difference between the previous standard of most of the content of these two criteria is entirely consistent that the two standards will become more and more consistent.
The six new standards in the two aspects of the previous draft was complete, TIA specifies six types of system components must be backward compatible with the ingredients (including the three, five, five ultra-wiring products), and must meet the mixed userequirements.Six 100 ohm balanced cabling standard twisted-pair connecting hardware, patch cords, channels and permanent links made specific requirements.
Six cabling standards did improve in many ways.
First, the performance of the six test frequencies eventually identified as 1-250MHZ frequency.
Second, when the six cabling system in the 200MHZ integrated attenuation crosstalk ratio (PS-ACR) should have a larger margin, which provides 2 times the bandwidth over five.In order to ensure that the entire system has good electromagnetic compatibility, this standard while also matching cable and connector recommendations.
Three, six and five, a super-important difference is that an improvement in terms of crosstalk and return loss performance.For the new generation of full-duplex high-speed network applications, excellent return loss performance is very important.
Fourth, in the previous test, a basic link cabling (TIA), the permanent link (ISO) and the channel model (TIA / ISO).Eliminated in six standard basic link model, which the two standard models in the test agreed.Channel model and the permanent link model of the connection diagram is as follows.
Fifth, in the original standard has been no standard definition of the current five.The original five categories of system testing issues, the original TSB67 and TSB95 standards, new standards included in Appendix D, but only provides for the reference.
Sixth, the standard test parameters defined six categories.
VII, ISO/IEC-11801: 2002 Class E standard and ANSI/TIA/EIA-568B.2-1 different.
3dB principle - when the return loss is less than 3dB, you can ignore the return loss (Return Loss) value.This principle is applicable to TIA and ISO standards.
4dB principle - when the return loss is less than 4dB, you can ignore the near-end crosstalk (NEXT) value.This principle applies only to ISO-11801 standard revised version.
Fluke Networks test of support for six cabling standards
Fluke Networks is the cable system, the largest field test instrument manufacturers, their access to a variety of proprietary testing technology DSP-4X00 Series tester has been widely used by users.DSP-4X00 Series tester uses advanced digital test technology, the bandwidth of the test can reach 350MHz.Not only can it support the new standard UTP cable, you can also support six types of test.DSP-4X00 Series tester to maintain the test speed, high precision.In addition, fault diagnosis it is very unique, but the function of the real needs of the user.DSP-4X00 Series Digital Cable Analyzer can provide you with a complete set of testing, verification, and cable and fiber optic solutions for document filing.Fluke Networks with other network tester, like, DSP-4X00 Series Digital Cable Analyzer rugged cabling project in the harsh environment use.
A, DSP-4X00 features of Digital Cable Analyzers
● More than Cat5e and Cat 6 cable testing accuracy levels required to extend the DSP-4X00's testing capabilities, and also obtained UL and ETL SEMKO certification.
● use the new breakthrough get more permanent link adapter more accurate "through" the result, DSP-4X00 included in the adapter.
● The provision of Category 6 channel adapter and a channel / flow adapter to accurately test Category 6 channel.
● Auto diagnostic cable fault in meters or feet accurately the fault location.
● Extended-board 16MB memory card can store a full day of test results.
● can meet TIA-606A standard cable ID number downloaded to DSP-4X00 Digital Cable Analyzer, save time and ensure data accuracy.
● The provision of an external memory card, and more advanced cable test management software package, fiber optic test adapters and cable management software with more applications.
● flexible cable standard download.The structure can be upgraded to protect users investment.
Second, DSP4X00 upgrade
In order to support the latest standards, Fluke Networks has released the latest version of the instrument firmware, DSP-4000 to V3.9, DSP-4100 to V4.9, DSP-4300 is V1.9.Please login to download our Home www.flukenetworks.com.cn series cable analyzer DSP4X00 the latest version of the software, and upgrade your DSP4X00 to meet the latest standards in accordance with the needs of the project for acceptance.