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ケーブリング・クロニクル

2017-08-23

For professional contractors and installers of data communications cabling systems, compliance with ANSI/TIA 606-B Standards updated back in 2012 has required new levels of precision in cable labeling – often an arduous and time-consuming process for cable installers.Today, however, thanks to smart, cutting-edge cable labeling tools and technologies, that situation has improved dramatically!

606-B Compliance…and a Whole Lot More

2017-08-16

It seems like just yesterday we were talking about spring cleaning, and now we’re moving into the dog days of summer.And it’s hot.

2017-08-09

In the 2014 version of ISO/IEC 14763-3, testing of optical fiber cabling, unidirectional testing for permanent links is required.In specific cases, bi-directional testing is required.However, ISO/IEC 14763-3 provides no information on how a bi-directional test should be done - this article explains how.

When Bi-Directional Testing is Required

2017-08-02

Testing and characterizing a permanent link with an OTDR requires the measurement of connector attenuations A/B and fiber loss C. To make this measurement, a launch and tail cord are needed (see Figure 1).

2017-07-05

Polarity defines direction of flow, such as the direction of a magnetic field or an electrical current.In fiber optics, it defines the direction that light signals travels through an optical fiber.

To properly send data via light signals, a fiber optic link’s transmit signal (Tx) at one end of the cable must match the corresponding receiver (Rx) at the other end.

2017-06-29

While it may look and feel like a fiber patch cord, Test Reference Cords, or TRCs for short, are not patch cords.There’s a little something different about these cords that are used for certifying fiber cabling systems to ANSI/TIA, ISO/IEC and IEEE standards.

2017-06-21

Recently we have been getting questions about how to determine if an SFP is working.I’m going to use SFP generically here to represent a multitude of the various optical modules that are available.The Fluke Networks fiber testers can be used to measure the light that is being put out by and SFP.

2017-06-14

市販されているプラグ・アンド・プレイ 8 芯 MPO ソリューションは、ギガビット(40GBASE-SR4)や 100 ギガビット(100GBASE-SR4)アプリケーションに最適です。8 芯のうち、4 芯を使って送信、4 芯を使って受信を行い、伝送速度は 10 または 25 Mb/s です。

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