Understand Variety of Fiber Optic Cables and Components Basic Knowledge

1. FTTH fiber cable

FTTH (Fiber To The Home), by definition is an optical fiber directly to the home. Specifically, FTTH refers to the optical network unit (ONU) installed in the home user or business user, in addition to the optical access family FTTD (fiber to the desktop) closest to the users outside the optical access network application type.

There are five main advantages of FTTH:

. It is passive network, from the central office to the user, the intermediate can be done basically passive;

. Its bandwidth is relatively wide, long-distance carriers fits the way large-scale application;

. Because it is hosted on the fiber business, and there is no problem;

. Because of its relatively wide bandwidth, support for the agreement is more flexible;

. As technology advances, including point to point, 1.25G and FTTH way have developed a relatively complete function.

2. Indoor fiber cable

Indoor optical fiber cables are classified according to cable using the environment, as opposed to a outdoor fiber optic cable.

Indoor cable is made up of optical fiber (optical transmission medium) through a certain process and the formation of the cable. It is Mainly composed of optical fiber glass(glass as thin as a hair) and plastic protective sleeve and plastic sheath structure, fiber optic cable is not gold, silver, copper and aluminum and other metals usually no recovery value.

Indoor fiber optic cable is a certain amount of composition according to certain way cable heart, outsourcing jacket, and some also cover the outer sheath for optical signal transmission to achieve a communication line.

The tensile strength of the small indoor fiber optic cable, a protective layer is poor, but also more lightweight and economical. Indoor cable mainly used in building wiring, and connections 
between network devices.

3. Outdoor fiber optic cable

Outdoor fiber optic cable, used for outdoor optical cable. As opposed to a indoor optical fiber cable.

Outdoor cable is one of the optical transmission line. Consists of a certain number of optical fiber according to certain way cable, outsourcing has a sheath, some still coated outer sheath.

Outdoor fiber optic cable consists of an optical fiber glass (glass as thin as a hair) and plastic to protect casing and plastic coating, fiber optic cable is no gold, silver, copper, aluminum and other metal, there is no recycling value.

Outdoor fiber optic cable tensile strength greater than the thick protective layer, and is usually sheathed (i.e metal leather wrapped). Outdoor cables is mainly applied to buildings, and between the interconnection between remote networks.

4. Fiber Optic Patch Cord

Fiber optic patch cord used to make the link from the device to the jumper cables fiber optic cabling. Fiber jumper has a thicker layer of protection, commonly used in the connection between the optical and terminal box. The commonly used fiber optic jumper include: ST, LC, FC, SC type.

Main categories:

Single-mode fiber jumper (Single-mode Fiber): Average single-mode fiber jumper with yellow connector and protective sleeve blue; transmission distance is longer.

Multimode fiber jumper (Multi-modeFiber): General multimode fiber jumper in orange, and some in gray, fittings and protection applied beige or black; transmission distance is shorter.

5. Optical Fiber Coupler

Fiber coupler also known as fiber adapter, fiber coupler for connecting fiber optic connectors, couplers. According to fiber optic connector head selection models. According to the connection head structure can be divided into: FC, SC, ST, LC, MTRJ, MPO, MU, SMA, DDI, DIN4, D4, E2000 various froms.

6. Optical fiber terminal box

Optical cable terminal box (also known as fiber optic terminal box or cable box) is a small core fiber optic cable to connect with the terminal equipment, mainly used for cable ends fixed, cable and fiber pigtail splice and I containment and protection.

7. Fiber Fusion Splicer

Two fiber optic cable connection, fiber optic cable should butt up inside the fiber because fiber is like glass, must be refused on the two dedicated connectors, connector card and then put together, so that the optical signal can be passed.

Light in the optical fiber transmission loss can be created, the loss is mainly consist of optical fiber transmission loss and loss of fiber of welding joint. Fiber cable once order, the basic purpose of optical fiber transmission loss but also determined that the loss of fiber of welding joint is related to fiber itself and site construction. Efforts to reduce the loss of fiber of welding joint, can increase the fiber optic repeater amplification and transmission distance attenuation of optical fiber link margin.

If you would like to purchase these items or want to know more about fibre optic cable specification, optical cable price or loose tube fiber optic cable, please visit our website.

Breakout Fiber Optic Cable

Breakout fiber cable also called fanout cable, is an optical fiber cable containing several jacketed simplex optical fibers packaged together inside an outer jacket. They can be easily divided into individual fiber lines as each fiber is individually reinforced. This differs from distribution style cable, in which tight-buffered fibers are bundled together, with only the outer jacket of the cable protecting them. The design of breakout-style cable adds strength for ruggedized drops, however the cable is larger and more expensive than distribution-style cable. Breakout cable is suitable for short riser and plenum applications and also for use in conduits, where a very simple cable run is planned to avoid the use of any splice box or spliced fiber pigtails.

Because each fiber is individually reinforced, the breakout cable can be easily divided into individual fiber lines. Each simplex cable within the outer jacket may be broken out and then continue as a patch cable, for example in a fiber to the desk application in an office building. This enables connector termination without requiring special junctions, and can reduce or eliminate the need for fiberoptic patch panels or an optical distribution frame. Breakout cable requires terminations to be done with simple connectors, which may be preferred for some situations. A more common solution today is the use of a fanout kit that adds a jacket to the very fine strands of other cable types.

Breakout cables normally contain a ripcord, two non-conductive dielectric strengthening members (normally a glass rod epoxy), an aramid yarn, and 3 mm buffer tubing with an additional layer of Kevlar surrounding each fiber. The ripcord is a parallel cord of strong yarn that is situated under the jacket(s) of the cable for jacket removal.

A breakout fiber optic cable offers a rugged cable design for shorter network designs. This may include LANs, data communications, video systems, and process control environments.

A tight buffer design is used along with individual strength members for each fiber. This permits direct fiber optic cable termination without using breakout kits or splice panels. Due to the increased strength of Kevlar members, breakout fiber optic cables are heavier and larger than the telecom types with equal fiber counts.

The term breakout defines the key purpose of fiber optic breakout cable. That is, one can “break out” several fibers at any location, routing other fibers elsewhere. For this reason breakout cables are, or should be, coded for ease of identification.

Because fiber optic breakout cable is found in many building environments where codes may require plenum cables, most breakout cables meet the NEC’s requirements. The cable is available in a variety of designs that will accommodate the topology requirements found in rugged environments. Fiber counts from simplex to 256 are available.

If you would like to purchase our breakout fiber optic cable or want to learn about outdoor fiber optic cable or fibre optic cable specification, please visit our website.

What is Outdoor Fiber Optic Cable

Outdoor fiber optic cable, simply used for outdoor fiber optic cable, belong to a kind of optical fiber cable, for the most suitable to use in outdoor so called outdoor fiber optic cable, it is durable, can withstand the freezing of weathering, the outer packing, which have some such as pressure, corrosion resistance, tensile mechanical properties, environmental characteristics.

Outdoor cable tensile strength is larger, protective layer is thick, and usually for armored (i.e. metal leather wrapped). Outdoor cables is mainly applied to buildings, and between the interconnection between remote networks.

Generally speaking, outdoor cable just filler, reinforcing member, jacket and so on use of different materials. Such as: outdoor fiber optic cable buried, should use armored cable. Aerial, with two or more optional root reinforcement of black plastic optical fiber cable outer sheath.

Outdoor cable because of its use of the environment is outdoors, it must have a waterproof function, generally used by the outer sheath is made of PE material, and its internal structure is generally divided into the central tube structure and layer twisted structure.

Outdoor fiber optic cable is a complete optical signal transmission lines of communication. By a number of fiber optic cable core composition in accordance with a certain way, outsourcing jacket, and some also cover the outer sheath.
Outdoor fiber optic cable consists of an optical fiber (glass as thin as a hair) and plastic casing and plastic sheath constituted maintenance, fiber optic cable is not gold, silver, copper and aluminum and other metals.

Outdoor optical cable laying

Communication cable since 70s application, has now developed into a long haul, local telephone relay, underwater and undersea communications and local area networks, private networks and other cable transmission backbone, and has begun to develop the access network to the user by the fiber to curb (FTTC), fiber to the building (FTTB) and so on to the fiber to the home (FTTH) development. For a variety of applications and environmental conditions, communications cable with aerial, buried fiber optic cable, pipelines, underwater, indoor installation, etc.

Aerial optical cable

Aerial cable is hung on pole using optical fiber cable. This way of laying can take advantage of the existing aerial light road, save construction costs and shorten the construction period. Aerial cables hanging in the pole, must adapt to a variety of natural environments. Aerial cables susceptible to typhoons, ice, floods and other natural disasters, the threat also vulnerable to outside influence and weaken their mechanical strength and other effects, so the failure rate is higher than the aerial cable and pipeline buried fiber optic cable. Generally used for long-distance two or level 2 of the line, cable lines for private networks or some local special location.

Direct Burial Fiber Cable

The cable outside a strip or wire armored, direct burial in the ground, requiring performance against external mechanical damage and prevent soil erosion performance. According to the different use of the environment and conditions for use of different sheath structure, for example, there are areas of Pest Insects and Rodents, to use a pest control rat gnawing of the cable sheath. According to the soil and the environment, the depth of buried fiber optic cable is generally between 0.8m to 1.2m. In laying, you must also pay attention to maintaining fiber strain within the limits allowed.

Duct Optical Cable

Pipe laying is usually in urban areas, pipe laying environment better, so the cable sheath are no special requirements, no armor.

Pipe laying laying before the next election and the length of the segment connecting point. Laying beside cited can use mechanical or manual traction. Do not exceed a towing cable to allow traction tension. Pipe materials can be produced based on the geographical choice of concrete, asbestos cement, steel, plastic tubes.

Underwater Fiber Optic Cable

Underwater fiber optic cable through the radiation in the bottom of rivers, lakes and the riverbank, etc. The fiber optic cable, fiber optic cable laying environment than this pipe laying, burying the condition much worse. Underwater fiber optic cable must be used wire or steel armored structure, retaining layer structure according to the hydrogeological conditions of rivers into account. For example, in stony soil, erosion and strong seasonal riverbed, cable suffer from wear and tear, Rally situation, do not only need thick steel wire armored, to use its double-armored construction methods should be based on river width, water depth, flow rate, etc. for the selected drawing riverbed. Laying underwater fiber optic cable buried fiber optic cable severe conditions than many, techniques and measures to repair the failure is also much more difficult, so the reliability requirements of underwater fiber optic cable buried fiber optic cable than high.

Submarine cable is underwater cable, but the laying of underwater cables environmental conditions more severe than normal, demanding the submarine cable system and its original life requirements in more than 25 years.

How To Successful Installation of Underground Fiber Optic Cable

The two most common outdoor fiber optic cable installations are pole line aerial installation and underground cable installation. Underground cable installation can be directly buried underground or in a buried pipe.

Direct burial installation

Direct burial installations are most common for long cross country installations. The cables are plowed in or buried in a trench; the installation process can be very fast. The most common type of cable is used in the directly buried cables is outdoor steel armor.

Underground duct installation

Fiber optic cables can also be pulled through underground ducts, which protect the cables from harsh environment. Underground duct installation also provides opportunity for future expansion without the need to dig. This is the most common approach in urban areas. Another benefit is that the fiber optic cable no armor can be used to make installation easier.

Preparation before underground cable installation

1. The right to receive appropriate one-way permits

2. Identify existing underground utilities such as buried cables, pipes

3. Investigate the soil condition in order to determine the installation depth, whether duct should be used, the type of fiber cable should be used and plowing equipment needed.

Buried cable technology

1. Plowed under

Cultivated land is faster than cuts in the fiber optic cable. But the process must be carefully monitored to prevent damag to the cable.

2. Trenched

Fiber optic cable can also be cut. This process is slower than farming; however, it allows a more control cable installation. Dig trenches can by hand or by machine.

3. Directional boring

Directional boring technique is used where the surface cannot be engaged in such as high, the railway crossing. On the contrary, a drilling machine is used to bore a few inches beneath the surface of the hole diameter, a pipe is out of the mouth of the cave, and then dragged into fiber optic cable pipe.

Important factors

1. Cable installation depth: up to 40 inches

The depth that fiber cables should be buried is determined by the soil conditions and surface usage. In cold region, fiber optic cable is buried below the frost line, usually prevent damage of cable is the ground frost.

2. Keep the trenches as straight as possible

Fiber cable trenches should be straight, and should be formed at the bottom of the trench. Backfill soil could also be used to load evenly distribution cable and protect the cable.

3. Fiber cable warning labels should be buried directly above the cable

Fiber optic warning cables are typically buried directly above the cables to warn future digging operations. Or concrete slabs can be buried below the warning label but above the cables to provide even more protection.

4. Whenever armor fiber cable used, they should be properly grounded

In the directly buried installations, steel armored fiber optic cable is often choose for their strength and protection from rodents bite. A very important thing to remember is proper grounding cable. They should be down-to-earth in all end points, splicing and the entrance of the building. Steel armored cable should be connected to ground using compression type clip. Cable near ground is then bolted to the ground terminal strip.

5. Fiber optic cable minimum bending radius should always be observed during installation.

Integrated Cabling Fiber Optic Cable Line Installation

Because, this period of communication network household cable lines, part of the outdoor, part of indoors, requirements and their way of laying optical fiber cables new requirements. These places the fiber capacity requirements will continue to grow, but still rules to follow, everything will depend on the needs of users. To have potential demand forecast puts the fiber optic cable, obviously will produce waste and the backlog of funds.

The same time, this section of optical fiber cable line communication network home will have to go through the route, may have stereotypes of the park, in this re-construction of large-scale 
communication pipeline would be difficult, a large number of aerial installation will not only destroy the beautiful landscape, the line is not safe.

To resolve these needs problem, has to adapt to the new way of laying the products come out.

At present, domestic and foreign new fiber optic cable laying methods are mainly three categories: the first is Air blow installed micro-optic cable or optical fiber bundles, fiber unit blowing into the pre-laying micro tube; second is open on the cement pavement slot, micro cable laying on the road tank; the third is use of non-communication pipe installation cable.

Air blow installation with cable

Air blow laying methods using compressed air high-speed air micro-cable blown into the pipe specified. A blower the laying methods with a variety of superoprity. High-speed airflow, mini-cables in suspension in the pipeline, so the terrain changes and pipe bending the cable; improve fiber packing density can take advantage of the tubes and micro cable, save pipeline resources;

The eary simply laying the appropriate capacity fiber optic cable, after expansion in phases according to the development needs of a fiber optic sub-tubes blown into the main pipe has been built in batches, saving the initial launch, to avoid a large number of fiber idle; fiber optic cable can be increased at any time based on business needs branch, Y-fiber optic connector to reduce fiber optic cable connector.

Blowing installed with fiber optic cable, fiber optic cable is cloth on the sub-pipe systems and micro-pipeline designed. Sealed miniature fiber optic cable and indoor and outdoor non-metallic dual-use micro-optic cable.

Sealed miniature fiber optic cable

It uses fiber loose tube stainless steel tube structure, in addition to the general characteristics of a miniature cable diameter is small, light weight, but also has excellent high temperature properties and lateral pressure resistance. Stainless steel tube using laser welded stainless steel band, fiber and fiber paste it sealed inside, accurate excess length control technology to ensure the use of fiber optic cable in a complex environment.

And stainless steel pipe with excellent moisture resistance and physical rodent control, termite performance and acid resistance, fiber can give the best protection, to minimize the damage to fiber optic cable blowing mounting seal micro-optic cable.

Indoor and outdoor dual-use non-metallic fiber optic cable

Fiber optic cable terminal and maintenance and overhaul mostly be located in the street, the center room of the district, inside buildings or communications equipment. These places there are fire safety, must comply with special needs: self-extinguishing cable products, non-smoking, non-metallic dual-use, indoor and outdoor fiber optic cable, LSOH material mostly used.

Pavement micro-groove fiber optic cable

Pavement micro-groove fiber optic cable and air-blown fiber optic cable has a similar structure, but also a small cable diameter, the weight light fiber optic cable, and low cost, easy laying, laying flexible, simple and efficient. China’s development of a stainless steel loose tube technology-based pavement micro-groove fiber optic cable, fiber count up to 48 cores, outer diameter less than 6.0mm cable weight less than 60kg/km.

Wherein, stainless steel tube, both the protective tube of the optical fiber loose tube, able to provide the appropriate fiber excess length of fiber optic cable gland for completely isolated from the outside moisture from entering the casing, but also a reinforcing member of the fiber optic cable, by selecting the appropriate pipe cross-sectionalto ensure that the tensile properties of the fiber optic cable and flattening performance. Stainless steel tube filled with a thixotropic water blocking compound to ensure that the cable complies the seepage performance requirements, steel pipe is extruded polyethylene sheath.

Road microchannel cable laying only need to open a narrow slot in the road, covered with a layer of sand at the bottom, a buffer layer of foam rods and other material laid on the sand, then the fiber optic cable buried in the tank, and then the cableholes and a layer buffer layer, and finally fill in the cement or bitumen according to road conditions, restore the original road can be.

In the gardens, lawns, slotting in the garden or lawn, then sets of fiber optic cable with PVC pipe shop in the above, and then backfill can restore the surface. Pavement micro-groove fiber optic cable is very simple solution to the problem of the construction and deployment of FTTH across the concrete floor, indoor and outdoor garden lawn terrain.

Drainage Pipeline laying fiber optic cable

At present, China has developed and widely used in a stainless steel loose tube technology, rainwater pipes using the layer stranded wire for reinforcement member mini-cables, fiber core up to 48 cores, outside diameter less than 9.6mm, cable weight of less than 190kg/ km.

Stainless steel pipe in the fiber optic cable is both loose tube fiber protection tube, fiber optic cable gland, in the sewer environment can be completely cut off from the outside water and moisture from entering the casing. Steel casing to faciliate the provision of sufficient and stable fiber excess length, which is particularly important to ensure the fiber life of the self-supporting fiber optic cable attenuation temperature characteristics. Stainless steel tube filled with a thixotropic water blocking compound to ensure that the requirements of the cable complies seepage performance.

This drainage pipeline the laying of fiber optic cable, with the urban underground drainage pipeline to laying fiber optic cable. Installed drain pipe in the wall of the manhole placement of the fixed metal member, rainwater pipes on both ends of the cable surface with stainless steel hanging gold, the gold with a lock in the borehole will then be hanging on the fixing metal member, so that the cable tensioner, sag decreases, the suspension was self-supporting.

Cable laying on the drainage pipeline on the wall, in essence, the ends of the pipes in the manhole self-supporting, hanging, thus requiring Simple structure, light weight, small diameter cable, container density, and has a largetensile strength and flexibility characteristics.

In addition, the cable laying on the drainage channel environment, but also requires moisture resistance and good corrosion resistance, and has some rodent resistance ability.

Source: fiberstore.com

What is Armored Fiber Optic Cable

The so-called armored fiber optic cable, is outside the optical fiber is then wrapped in a layer of protective of “armor”, is mainly used to meet the requirements of customers rodent, moisture proof, etc. Armored cable is a power cable made up by assembling two or more electrical conductors, generally held together with an overall sheath. This electrical cable with high protective covering is used for transmission of electrical power, especially for underground wiring needs. However, these cables may be installed as permanent wiring within buildings, buried in the ground, run overhead, or may even be kept exposed. They are available as single conductor cable as well as multi-conductor cables.

To be more precise, armored cables can be explained as electrical cables with stainless steel or galvanized wire wound over the conductors and insulation. They often have an outer plastics sheath for main distribution supply and buried feeders.

The main role of Armored fiber optic cable

Armored optical fiber in telecommunications fiber optic long-distance lines, twele trunk transmission has important applications. Armored fiber mostly used for general network management usually come into contact with two fiber optic network equipment in the engine room building internal connections. The armored fiber length is relatively short. Often referred to as the armored jumper.

General armoured jump line there is a layer of metal armoured in skin, make protection inside the fiber core, crush tensile resistance function, can prevent rat bite to eat by moth, etc.

The Types of Armored fiber cable

According to the use of premises

Indoor armored cable:

A single armor and indoor fiber optic cable. Single-core indoor armored cable structure: Single mode indoor armored cable, Tight fiber+ kevlar (tensile effect) + stainless steel hose (the compressive strength, resistance to bending, rodent) + stainless steel woven wire (torsional) + outer sheath (usually using PVC, according to the barrier role of fire-retardant PVC, LSZH, Teflon, silicone tube, etc.)

Single armor excluding stainless steel braided wire cable; Double armored fiber optic cable with stainless steel hose and stainless steel woven wire.

Advantages: high tensile strength, high compressive strength, rodent bite; possess resistant to the improper torsional bending damage; construction is simple, saving maintenance costs; adapt to harsh environments and man-made damage.

Disadvantages: weight heavier than common fiber optical cable. The price is higher than common fiber optic cable

Outdoor armored cable:

There are divided into light armored and heavy armored (outdoor fiber optic cable). light armored strip and aluminum, is to strengthen and anti-rodent bite. heavy armored is wrapped in a circle wire, generally used in the riverbed, submarine. The market in general armored cable than the non-armored cable is cheap, usually steel, aluminum, much cheaper than the aramid (Kevlar is mainly used for special occasions).

According to the material divided by metal armor

There are steel armored and aluminum armored. Was usually bolt-type core with a layer of metal armored to protect narural bent, with high pressure, resistance to the advantage of the strong pull, provides excellent cable protection and safety.

Aerial optical fiber cable

If it is an outdoor aerial optical fiber cable, in order to avoid the harsh environment, human or animal damage (such as someone with a shotgun with a birds when the fibers interrupted case often occurs), play a role in the protection core armored cable ships. Recommended steel armor, light armor, cheap and durable better. Light armor, the price is cheap and durable. There are two general outdoor aerial cables: one is the center beam tube; another Standed. In order to durable, overhead layer sheath, and direct burial with two layers of sheating safer.

Source: fiberstore.com

How To Identify Fiber Optic Cable

Accompanied by the continuous advancement of network technology, fiber optic cable products constantly in the construction of telecommunications networks, the construction of the national information highway, FTTH fiber to the desktop and other occasions for large-scale use. But how to really get a good performance, state-of-the-art products, need to understand some basic to identify means and methods. This article from the standard, physical, and product, on site test and application on the product’s performance and configuration, material and structure of the product, international norms and standards of production, etc some identification method is introduced, for reference.

1. View manufacturer qualification and corporate background. Mainly to see whether large manufacturers brand, whether it is commutted to the development and production of fiber optic cable products, whether there are many successful cases, you have the ISO9001 quality system certification, ISO4001 international environment system certification, and meets the ROHS directive, whether the relevant national and international instiutions certification. Such as the Ministry of information industry, Theil, UL certification and certification.

2. View the product packaging. Fiber optic cable supplier standard disk long, typically 1km, 2km, 3km, 4km custom length specifications allow positive and negative deviations, deviation range can refer to the manufacturers factory standards. View the cable outer sheath, and a clear sign of whether the meter number, name and fiber type. In general, factory-optic cable around the sturdy wooden tray, and wooden seal plate protection, fiber optic cable is sealed at both ends, the cable tray following flags: the product name, specifications, plate number, length, net/gross weight, date, A/B-side signs; View cable test records, the normal two copies, one with the cable tray in wood plate side, the open wooden tray cable can be seen, a fixed wooden tray outside.

3. Check the cable jacket. Indoor cable sheath generally use poly green vinyl, or flame retardant polyethylene green vinyl, or LSZH material. Quality looks smooth and bright, feel good. Has good flexibility, easy to peel. The poor quality of the cable jacket finish is not good, peeling, skin prone and the inside of the sleeve, kevlar adhesions, but also pay attention to some products using a sponge instead of Kevlar material. Should be made of high quality black polyethylene PE sheath outdoor fiber optic cable, a cable jacket smooth and bright, uniform thickness, no small bubbles. Feel bad, the poor quality of the cable jacket and the outer skin is not smooth, and some print easily rubbed. Due to material reasons, some cable jacket the dense tidal easy penetration.

4. View strengthened with wire. Many outdoor structure cable, generally contain wire for reinforcement. In accordance with the technical requirements and production requirements, outdoor fiber optic cable in the wire after phosphate treatment, the surface of the gray, cabling does not increase the hydrogen loss, no rust, high strength. However, some fiber optic cable wire and aluminum wire instead of white metal appearance bending performance. Simple method also can be used to identify, such as the cable split open taking a dip in the water one day, out to compare immediately betrays itself. As the saying goes: True gold fears no fire to burn. At that times i have to say phosphorus steel is not afraid of the water to soak.

5. View longitudinal the bandage lines of steel armor steel strip. The formal sided brushing rust paint manufacturers generally use the vertical the dressing pattern steel strip, and ring package connector is good, relatively strong and rigorous. But we also found that some fiber optic cable on the market using ordinary tin as the armor belt, usually only one side of the anti-rust treatment, as well as see the vertical bandage pattern strip thickness apparent inconsistency.

6. View loose tube. Regular manufacturers generally use the PBT material to put in a loose tube fiber core making, this material is characterized by high strength, no deformation, anti-aging. Some products do loose tube PVC material, this material intensity difference can pinch flat, easy to aging. Especially some GYXTW structure of the fiber optic cable, with open cable strip the cable jacket, pulling force, PVC material loose tube deformation, and even some with armored skin shedding, more enen fiber core with pull off.

7. View Fiber Pastes. Outdoor cable Fiber Pastes charge on the loose tube inside, can prevent water directly and contact the fiber core. To know that once the water vapor, moisture from entering it will seriously affect the life of the optical fiber. The relevant national regulations on the specific requirements of the fiber optic cable water blocking. Cables paste in order to reduce costs, some of the cable used is relatively small. So be sure to see the pastes is full of fiber.

8. View the fiber core. Fiber core is really the core of the fiber optic cable, the number of points on interviews are the core in order to protect the transmission. It is also a without the aid of the most difficult to identify the part of the instrument. Neither to identify with your eyes it is a single-mode or multi-mode; unidentifiable is 50/125 or 62.5/125; You can not to identify it is OM1, OM2, OM3 or zero water peak, and not to say that it Gigabit Ethernet application. Suggest that the best quality core of regular large cable manufacturer. Said indeed, some small plants due to their own lack of necessary testing equipment, not the core of the fiber rigorous testing. As a user, you do not even take the risk to buy a. The construction applications often touch often enough bandwidth, transmission distance can not be calibrated value, uneven thickness, weld not easy docking, fiber to the lack of flexibility, easily broken disk fiber to the number and the quality of the fiber core.

More than talk about the basic means and methods of identification of the fiber optic cable products are some of the voice of experience. In short I hope to users of our cable products, a correct understanding the class of fiber optic cable products, check cable products factory data, pay attention to check the product structure and material, the use of appropriate means of identification, rational knowledge of fiber optic cable price and performance quality to do the class of a fiber optic cable rational consumer products.

Source: FiberStore