Why do you need Fiber Drawing 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 house, you should have noticed a special handheld phone like instrument. The technician uses it to recognize 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, it is also often essential to identify a certain fiber without disrupting live service. This battery powered instrument seems like a long handheld bar and is also called fiber identifier or live fiber identifier.
How exactly does it work? There exists 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 from the fiber and the optical sensor detects it. The detector can detect both the actual existence of light and 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 from this strategy is so small, usually at 1dB level, which it doesn’t cause any trouble on the live traffic.
What kind of Optical Fiber Coloring 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 must change a head adapter so that you can support all most of these fibers and cables. While many other models are cleverly designed and they don’t need to change the head adapter in any way. Some models only support single mode fibers as well as others supports both single mode and multimode fibers.
Precisely what is relative power measurement? Most high end fiber optic identifiers come with a LCD display which can display the optical power detected. However, this power measurement cannot be used as a accurate absolute power measurement in the optical signal because of inconsistencies in fiber optic cables and also the impact of user technique on the measurements.
But this power measurement may be used to compare power levels on different fiber links which may have same type of fiber optic cable. This relative power measurement provides extensive applications as described below.
1. Identification of fibers
The relative power reading may be used to aid in the identification of any live optical fiber.There are many tests which can be performed to isolate the preferred fiber cable from a team 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 from the source. No single method is best or necessarily definitive. Using one or a combination of these methods may be needed 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 length of fiber. If you take relative power measurements along a section of optical fiber that is suspected of getting a high loss point like a fracture or tight bend, the alteration in relative power point to point could be noted. In case a sudden drop or increase in relative power between two points is noted, a very high loss point probably exists between the two points. The user may then narrow in on the point if you take 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 over a lit optical fiber. The optical fiber can be carrying a transmission or perhaps be illuminated employing an optical test source. Attach fiber identifier to a single side from the optical connector/splice. Read and record the relative optical power. Repeat the measurement on the second side of the connector/splice. Consider the distinction between the reading on the second side as well as the first side. The main difference ought to be roughly similar to the optical attenuation in the optical connector/splice. The measurement can be taken repeatedly and averaged to improve accuracy. In the event the optical fiber identifier indicates high loss, the connector/slice may be defective.
Fiber optic splice closure will be the equipment utilized to offer room for fusion splicing optical fibers. It also provides protection for fused fiber joint point and fiber cables. You will find mainly two kinds of closures: vertical type and horizontal type. A large collection of fiber splice closures are designed for different applications, such as aerial, duct fiber cables and direct burial. In most cases, these are usually used in outdoor environment, even underwater.
Fiber Optic Splice Closure Types . For outside plant splice closure, the two main major types: horizontal type and vertical type.
1) Horizontal type – Horizontal type splice closures look like flat or cylindrical case. They whzqqc space and protection for optical cable splicing and joint. They could 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 numerous Optical Fiber Ribbon Machine. They are designed to be waterproof and dust proof. They could be found in temperature starting from -40°C to 85°C and can accommodate as much as 106 kpa pressure. The cases are generally made from high tensile construction plastic.
2) Vertical Type – Vertical kind of fiber optic splice closures appears 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.