The key of Preserving Your Fiber Optic Network

Why do you’ll need a fiber identifier and what can it do for you?

For those who have ever seen a phone company technician working around the phone jump box outside your house, you should have noticed a unique handheld phone like instrument. The technician uses it to identify the incoming telephone wires by tapping onto the wires and listening to get a tone. As soon as he finds the appropriate wire, he connects the wire into your house. Get extra data about Travaux fibre optique

Throughout fiber optic network installation, upkeep, or restoration, it is also often necessary to identify a particular fiber devoid of disrupting live service. This battery powered instrument appears like a long handheld bar and is named fiber identifier or live fiber identifier.

How does it work?

There’s a slot on the leading of a fiber optic identifier. The fiber under test is inserted in to the slot, then the fiber identifier performs a macro-bend around the fiber. The macro-bend tends to make some light leak out in the fiber and the optical sensor detects it. The detector can detect each the presence of light as well as the direction of light.

A fiber optic identifier can detect “no signal”, “tone” or “traffic” and it also indicates the traffic path.

The optical signal loss induced by this approach is so modest, usually at 1dB level, that it doesn’t cause any trouble on the live traffic.

What type of fiber cables does it support?

Fiber optic identifiers can detect 250um bare fibers, 900um tight buffered fibers, 2.0mm fiber cables, 3.0mm fiber cables, bare fiber ribbons and jacketed fiber ribbons.

Most fiber identifiers want to alter a head adapter to be able to support all these kinds of fibers and cables. Even though some other models are cleverly developed and they do not will need to modify the head adapter at all. Some models only support single mode fibers and other folks can support both single mode and multimode fibers.

What’s relative power measurement

Most higher end fiber optic identifiers are equipped with a LCD display which can display the optical power detected. Even so, this power measurement can’t be used as a accurate absolute power measurement of the optical signal resulting from inconsistencies in fiber optic cables along with the influence of user strategy around the measurements.

But this power measurement is usually used to examine power levels on diverse fiber links which have exact same type of fiber optic cable. This relative power measurement has a lot of applications as described below.

Sample applications

1. Identification of fibers

The relative power reading might be used to help inside the identification of a live optical fiber.There are lots of tests that may be performed to isolate the preferred fiber cable from a group of fibers without taking down the hyperlink(s). 3 solutions that might be used involve comparing relative power, inducing macrobends, and varying the optical power in the source. No single method is finest or necessarily definitive. Using one or maybe a mixture of these strategies might be necessary to isolate the fiber.

2. Identification of higher loss points

Fiber optic identifier’s relative power measurement capability might be used to identify higher loss point(s) inside a length of fiber. By taking relative power measurements along a section of optical fiber that is suspected of possessing a high loss point for example a fracture or tight bend, the transform in relative power point to point is often noted. If a sudden drop or enhance in relative power in between two points is noted, a higher loss point likely exists amongst the two points. The user can then narrow in on the point by taking further measurements involving the two points.

3. Confirm optical splices and connectors

Fiber optic identifier might be used to confirm fiber optic connectors and splices. This test have to be performed on a lit optical fiber. The optical fiber could be carrying a signal or be illuminated using an optical test supply. Attach fiber identifier to one side of your optical connector/splice. Read and record the relative optical power. Repeat the measurement around the second side of your connector/splice. Take the difference between the reading on the second side and also the very first side. The distinction must be roughly equal to the optical attenuation from the optical connector/splice. The measurement could be taken a number of times and averaged to improve accuracy. In the event the optical fiber identifier indicates high loss, the connector/slice may very well be defective.

Manufactures supplying fiber optic identifiers

You will get fiber optic identifiers from Wilcom, Perfect, 3M, Fitel, Noyes and numerous far more manufacturers. We choose Wilcom and Fitel products given that each companies have quite higher customer satisfaction rate.

Comments are closed