Tag Archives: Fiber

Fiber Optics Test Equipment: Diagnosis Needed

Fiber Optics Test Equipment: Diagnosis Needed

Testing for continuity, checking signal loss and troubleshooting problems – these are the reasons why a fiber optics test equipment is here for. After a cable set-up, installation, connection and termination has been made, fiber optic testing is in order. One has to check whether everything – every parameter for a fully functional and operational fiber optic system is within specifications.

A fiber optics test equipment is made to test for different parameters and factors. As important as having the right tools – and fully functional at that, is the necessity of knowing how to use these. It is thus advised that before going to the field for actual work, one must check every fiber optics test equipment he will be using, making sure these are working well and properly calibrated.

Before one goes out to the field, it is important that one have the cable layouts to have a guide on what needs testing. One also needs to record results of the test data gathered. This documentation is important so that there will be records for reference and for tracing back if it would be necessary.

Some of the commonly used fiber optics test equipments are:

Fiber Optic Tracer

This fiber optics test equipment is used to check for continuity and to trace a fiber’s path from one point to another. This type of equipment has a LED source that mates to a fiber optics connector. With a cable attached for testing, one needs to look at the other end point to see if the light from LED source is transmitter through the fiber. If one finds no light, check the intermediate connections to determine the defective portion of the fiber optics cable. Also, instead of a LED, tracers that are more powerful use a laser. The breaks in fibers or the high loss connectors can easily be seen with the obvious red laser light.

Fiber Optics Microscope

This is used to check the quality of the termination process on the connectors. This allows one to do the inspection procedure from several angles. Always be careful though when checking cables with this microscope, making sure no power is present in it.

Fiber Optics Power Meter

This fiber optics test equipment measures power. The meter should be set at the appropriate range before doing the test. Check if there is enough power for the system. Having too much power overloads the receiver, while having too little will make the receiver treat the signal as noise.

Do you want all the necessary testing tools?

If you want a more complete set of tools or equipment for your fiber optics testing job, then you may like having a fiber optics test kit. One can choose from many brands out there. It is important that you get high-quality tools to help you perform your fiber optics testing efficiently, and do these the safest way.

The Secret Of Successful Fiber Optic Cable Management

The Secret Of Successful Fiber Optic Cable Management

Why is proper fiber optic cable management so critical?

Service providers have deployed more and more fiber optic cables for their high bandwidth, low costs, greater reliability and flexibility. But just deploying is not enough; a successful fiber network also requires a solid infrastructure based on a professional fiber optic cable management system.

Fiber optic cable management affects a network’s reliability, performance, cost and maintenance. It provides the ability to reconfigure network, restore service and implement new services quickly.

Four goals to achieve with professional fiber optic cable management

1. Protect fiber optic cable from microbends and macrobends loss

Microbends are small deformities in the optical fiber and macrobends are larger bends of the fiber cable. Fiber bends beyond the specified minimum bending radius can cause signal loss or even break the fiber, causing service disruption.

As a rule of thumb, the minimum bending radius should be bigger than ten times the outer diameter of the fiber cable. Telcordia recommends a minimum 38mm bending radius for 3mm fiber optic patch cords.

Fiber optic cable management system should provide bend radius protection at all points where a fiber optic cable makes a bend. This helps ensure the network’s long-term reliability; thus reduces the network operation cost by reducing network down time.

2. Well defined fiber optic cable management routing paths

The leading cause of fiber optic cable minimum bend radius violation is improper routing of fibers by fiber installation technicians.

In a proper fiber cable management system, routing paths are clearly defined and easy to follow; such that the technician has no other option but to route the cables properly.

Well defined routing paths reduce the training time required for technicians and increase the uniformity of work done. It also makes accessing individual fibers easier, quicker and safer.

3. Easy access to installed optical fibers

Allowing easy access to installed fibers is critical in maintaining proper bend radius protection. The system should be designed to ensure that individual fibers can be installed or removed without inducing a macrobend on an adjacent fiber. Accessibility is critical during network reconfiguration.

4. Physical protection of installed optical fibers

Well defined fiber optic cable management system physically protects the fibers from accidental damage by technicians and equipment throughout the network.

Fiber optic cable management system procurement

When making the decision on purchasing your fiber optic cable management systems, the goal is getting the most cost-effective system that provides the best cable management, flexibility, and growth capabilities.

Going with the cheapest approaches for fiber optic cable management can cost more money in the long run. A strong fiber cable management system will enable you to extract the maximum value from your installed optical fiber networks.

Specifying Fiber Cable Management Systems: Cost and Value

As a means of keeping operational costs down, service providers around the world are increasingly turning to systems integrators to install their networks.

This practice allows the service provider’s technicians to focus on operations and maintenance, rather than network installation. There is, however, an inherent risk in this practice.

As the purchasing decision for the fiber cable management system moves from the service provider’s engineering group to the systems integration prime contractor, the cable management features of the distribution system are generally not specified.

What can happen, then, is the equipment installed may lack key features and functionalities. In light of the importance of proper cable management within the ODF, the service provider needs to specify the basic requirements for the cable management system.

There are several industry-standard specifications that can assist service providers in writing specifications for their cable management systems. Two of these specifications are:

• Telcordia Generic Requirements for Fiber Distribution Frames GR-449-CORE, Issue 2, July 2003

• Network Equipment Building System (NEBS) Generic Equipment Requirements, TR-NWT-000063

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