Why do you need Optical Fiber Coloring Machine and exactly what can it do for you If you have experienced a telephone company technician working on the phone jump box outside your home, you ought to 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 for a tone. Once he finds the right wire, he connects the wire in your house.
During fiber optic network installation, maintenance, or restoration, additionally it is often essential to identify a certain fiber without disrupting live service. This battery powered instrument appears like a long handheld bar and is called fiber identifier or live fiber identifier.
How does it work? There is a slot on the surface of a fiber optic identifier. The fiber under test is inserted in to the slot, then this fiber identifier performs a macro-bend on the fiber. The macro-bend makes some light leak out from the fiber and also the optical sensor detects it. The detector can detect both the presence of light and also 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 with this method is so small, usually at 1dB level, which it doesn’t cause any trouble on the live traffic.
What sort of Optical Fiber Ribbon Machine can 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 in order to support all these kinds of fibers and cables. Although some other models are cleverly designed and they don’t need to modify the head adapter whatsoever. Some models only support single mode fibers yet others supports both single mode and multimode fibers.
What is relative power measurement? Most high end fiber optic identifiers include a Liquid crystal display which could display the optical power detected. However, this power measurement cannot be utilized for a accurate absolute power measurement in the optical signal because of inconsistencies in fiber optic cables as well as the impact of user technique on the measurements.
But this power measurement can be used to compare power levels on different fiber links that have same form of fiber optic cable. This relative power measurement has a lot of applications as described below.
1. Identification of fibers
The relative power reading may be used to assist in the identification of the live optical fiber.There are several tests which can be performed to isolate the desired fiber cable from a small group of fibers without taking along the link(s). Three methods that may be used include comparing relative power, inducing macrobends, and varying the optical power of the source. No single strategy is best or necessarily definitive. Using one or a mixture of these techniques may be needed to isolate the fiber.
2. Identification of high loss points
Fiber optic identifier’s relative power measurement capability could be used to identify high loss point(s) in a period of fiber. Through taking relative power measurements along a section of optical fiber that is certainly suspected of having a very high loss point like a fracture or tight bend, the modification in relative power indicate point could be noted. If a sudden drop or increase in relative power between two points is noted, a very high loss point probably exists involving the two points. The user can then narrow in on the point by taking further measurements in between 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 the lit optical fiber. The optical fiber could be carrying a signal or even be illuminated using an optical test source. Attach fiber identifier to 1 side from the optical connector/splice. Read and record the relative optical power. Repeat the measurement on the second side of the connector/splice. Take the distinction between the reading on the second side and also the first side. The real difference ought to be roughly equal to the optical attenuation in the optical connector/splice. The measurement could be taken several times and averaged to enhance accuracy. If the optical fiber identifier indicates high loss, the connector/slice could be defective.
Fiber optic splice closure is the equipment utilized to offer room for fusion splicing optical fibers. It also provides protection for fused fiber joint point and fiber cables. You can find mainly 2 kinds of closures: vertical type and horizontal type. A large variety of fiber splice closures are equipped for different applications, such as aerial, duct fiber cables and direct burial. In most cases, they are usually used 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 appear to be flat or cylindrical case. They whzqqc space and protection for optical cable splicing and joint. They may be mounted aerial, buried, or for underground applications. Horizontal types are used more frequently than vertical type (dome type) closures.
Most horizontal fiber closure can accommodate countless Sheathing Line. They are designed to be waterproof and dirt proof. They can be used in temperature starting from -40°C to 85°C and may accommodate as much as 106 kpa pressure. The cases are often made of high tensile construction plastic.
2) Vertical Type – Vertical form of fiber optic splice closures seems like a dome, thus they are also called dome types. They satisfy the same specification because the horizontal types. They are equipped for buried applications.