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Why do you need Optical Fiber Coloring Machine and what can it do for you If you have ever seen a telephone company technician working on the phone jump box outside your house, you ought to have noticed a special handheld phone like instrument. The technician uses it to identify the incoming telephone wires by tapping onto the wires and listening for a tone. Once he finds the proper wire, he connects the wire into your house.

During fiber optic network installation, maintenance, or restoration, additionally it is often essential to identify a particular fiber without disrupting live service. This battery powered instrument appears like a lengthy handheld bar and is called fiber identifier or live fiber identifier.

How does it work? You will find a slot on the surface of a fiber optic identifier. The fiber under test is inserted in to the slot, then the fiber identifier performs a macro-bend on the fiber. The macro-bend makes some light leak out of the fiber as well as the optical sensor detects it. The detector can detect both the actual existence 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 direction.

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

What kind of SZ Stranding Line 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 have to change a head adapter so that you can support all these kinds of fibers and cables. While some other models are cleverly designed and they don’t need to change the head adapter at all. Some models only support single mode fibers yet others supports both single mode and multimode fibers.

Precisely what is relative power measurement? Most top end fiber optic identifiers are equipped with a Liquid crystal display which may display the optical power detected. However, this power measurement cannot be used as a accurate absolute power measurement in the optical signal as a result of inconsistencies in fiber optic cables and the impact of user technique on the measurements.

But this power measurement may be used to compare power levels on different fiber links which have same type of fiber optic cable. This relative power measurement provides extensive applications as described below.

Sample applications

1. Identification of fibers

The relative power reading could be used to assist in the identification of any live optical fiber.There are several tests which can be performed to isolate the desired fiber cable from a group of fibers without taking along the link(s). Three methods that might be used include comparing relative power, inducing macrobends, and varying the optical power in the source. No single strategy is best or necessarily definitive. Using one or a mixture of these methods may be required to isolate the fiber.

2. Identification of high loss points

Fiber optic identifier’s relative power measurement capability can be used to identify high loss point(s) in a duration of fiber. Through taking relative power measurements along an area of optical fiber which is suspected of having a high loss point such as a fracture or tight bend, the change in relative power indicate point can be noted. If a sudden drop or rise in relative power between two points is noted, a higher loss point probably exists between the two points. The consumer may then narrow in on the point through taking further measurements involving the two points.

3. Verify optical splices and connectors

Fiber optic identifier may be used to verify fiber optic connectors and splices. This test must be performed on a lit optical fiber. The optical fiber could be carrying a signal or even be illuminated utilizing an optical test source. Attach fiber identifier to one side in the optical connector/splice. Read and record the relative optical power. Repeat the measurement on the second side from the connector/splice. Take the distinction between the reading on the second side as well as the first side. The real difference ought to be roughly comparable to the optical attenuation of the optical connector/splice. The measurement may be taken many times and averaged to enhance accuracy. In the event the optical fiber identifier indicates high loss, the connector/slice may be defective.

Fiber optic splice closure is definitely the equipment employed to offer room for fusion splicing optical fibers. Additionally, it provides protection for fused fiber joint point and fiber cables. You can find mainly two types of closures: vertical type and horizontal type. A large collection of fiber splice closures are designed for different applications, including aerial, duct fiber cables and direct burial. In most cases, these are usually found in outdoor environment, even underwater.

Fiber Optic Splice Closure Types . For outside plant splice closure, there are two major types: horizontal type and vertical type.

1) Horizontal type – Horizontal type splice closures seem like flat or cylindrical case. They whzqqc space and protection for optical cable splicing and joint. They can be mounted aerial, buried, or perhaps for underground applications. Horizontal types are employed more often than vertical type (dome type) closures.

Most horizontal fiber closure can accommodate countless Optical Fiber Proof-Testing Machine. They are designed to be waterproof and dirt proof. They may be found in temperature which range from -40°C to 85°C and will accommodate as much as 106 kpa pressure. The cases are generally manufactured from high tensile construction plastic.

2) Vertical Type – Vertical type of fiber optic splice closures appears like a dome, thus also, they are called dome types. They meet the same specification because the horizontal types. They are equipped for buried applications.

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