Outdoor Loose Tube Cables Types

Outdoor Loose Tube Cables are designed for outdoor use. They are prositioned in a loose tube made of high modulus plastic. The loose tube design provides stable performance over a wide temperature range and is compatible with any telecommunication grade optical fiber.

GYXTY Optical Cables Type


In the structure of model GYXTY optical cable, the single mode or multimode optical fibers are jacketed by loose tube and the tube is made of high modulus polyester with waterproof filling compound inside tube. There are two parallel steel wires on the two sides of the loose tube and then they are sheathed by PE to form and optical cable.


. Accurate fiber excess length ensures good mechanical and temperature performance
. Special design with compact structure to prevent tube rebound
. Parallel double FRP as strength member ensures good performance of tensile strength
. PE sheath protects cable from ultraviolet radiation
. Crush-resistance and flexibility
. Small diameter, light weight and installation friendliness
. High strength loose tube with filling compound ensures critical protection of fiber


. Usable for ducts, direct burial, aerial installation
. Long distance communication system
. Subscriber network system
. Local area network system

GYTA(S) Optical Cables Type


GYTA(S) fiber optic cable 250um, is positioned in a loose tube which made of high moudlus plastic. The tube is filled with a water-resistant filling compound, a steel wire. sometimes sheathed with polyethylene(PE) for fiber cable with high fiber count, locates in the center of core as a metallic strenghth member. Tubes are fillers are stranded around the strength member into a compact and circriar cable core, An Aluminum polyethylene Laminate(APL) is applied around the cable core, which is filled with the tilling compound to protect it from water ingress.


. Small size, Light weigh, with good bending resistance performance easy for installation
. Reasonable structure design and precise control for over length ensuring excellent characteristics of mechanical tensile strain and environment temperature
. High strength loose tube material with good performance of hydrolysis resistant, special tube. filling compound ensure a critical protection of fiber
. Full section filled ensures moisture-proof and water blocking
. Low dispersion and attenuation
. Proper design, precise control for fiber excess length and distinct stranding process render the cable excellent mechanical and environmental characteristics
. Aluminum-PE sheath makes cable have nice moisture resistance performance
. Small cable diameter, light cable weight, easily to install
. The sheath also can be made by LSZH, which cable type is GYTZA

GYTY Optical Cables Type


GYTY optic fiber cable is with single-mode or multimode structure ,optical fibers are jacketed waterproof compound filled loose tube made of high modulus plastic tube. The center of the cable core is a metal strengthening core for a certain number of cores for the fiber optic cable, metal strengthen squeeze packet layer of polyethylene (PE) in addition to the core. Loose tube (filling cord) around the center to strengthen core twisted into a compact and circular cable core, the core is filled with water blocking compound, PE sheathed cabling.


. Good mechanical and temperature performance
. High strength loose tube that is hydrolysis resistant
. Special tube filling compound ensure a critical protection of fiber
. Crush resistance and flexibility
. PE sheath protects cable from ultraviolet radiation
. Operating temperature:-30~+70℃; storage temperature:-40~+70℃

GYFTA/Y Optical Cables Type


GYFTA/Y-53 fibers, 250μm, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. A Fiber Reinforced Plastic (FRP) locates in the center of core as a non-metallic strength member. The tubes (and fillers) are stranded around the strength member into a compact and circular core. An aluminum Polyethylene Laminate (APL) is applied around the strength member into a compact and circular core. Then the cable core is covered with a thin polyethylene (PE) inner sheath, which is filled with jelly to protect it from water ingress. After a corrugated steel tape armor is applied, the cable is completed with a PE outer sheath.


. Good mechanical and temperature performance
. High strength loose tube that is hydrolysis resistant
. Special tube filling compound ensure a critical protection of fiber
. Crush resistance and flexibility
. The following measures are taken to ensure the cable watertight:
. Single Fiber Reinforced Plastics as the central strength member
. Loose tube filling compound
. 100% cable core filling
. APL moisture barrier
. PSP enhancing moisture-proof
. Water-blocking material
. Complies with Standard YD/T 901-2001 as well as IEC 60794-1

GYFTS Optical Cables Type


GYFTS fiber optics cable, Loose tube style, with non-metallic central strength member of FRP and peripheral strength members with moisture barrier inner sheathed. Cable protected by a black PE over sheath, suitable for duct or aerial application.


. Good mechanical and temperature performance
. High strength loose tube that is hydrolysis resistant
. Special tube filling compound ensure a critical protection of fiber
. Specially designed compact structure is good at preventing loose tubes from shrinking
. Crush resistance and flexibility
. PE sheath protects cable from ultraviolet radiation
. The following measures are taken to ensure the cable watertight
. Loose tube filling compound
. 100% cable core filling
. PSP enhancing moisture-proof

We also provides other types of loose tube cable, such as GYHTY, GYDTA, GYFXTY, GYXTS optical fiber cable. What’s more FiberStore provides a range of outdoor cables, breakout fiber optic cable, and optical patch cord. If you would like to know more about our optical cable price, please contact us sales@fiberstore.com.

Overview of CWDM Mux and DWDM Multiplexer

As the CWDM Mux/demux and DWDM mux/demux goods are playing an even more and more important role inside the data transmission field, today organic beef focus on the key options that come with CWDM mux and DWDM mux first.

As everybody knows, the CWDM Mux / demux module is based on dielectric thin-film technology designed for integration in low cost Metro and Access networks. These include applications such as fiber to the home, business or curb. The module enables 4 or 8 channels to be either combined (added) or separated (dropped). The fileters operate with a channel spacing of 20nm corresponding to standard CWDM wavelengths. CWDM Mux Demux module is a device to allow multiple optical signals at different wavelengths to pass through a single optical fiber strand. The common configuration of CWDM mux/demux module is 2CH, 4CH, 8CH, 16CH, 18CH CWDM mux/demux module. 3 Single fiber or dual fiber connection for CWDM Mux/demux are available. FiberStore’s CWDM modules has low insertion loss, high channel isolation, flat passband. Additional filters, to enable cascading of devices, or addition of 1310nm or other wavelength, can also be included in the module.

The CWDM mux products always own these following features:

> Passive, no electric power required. (MTBF ca. 500 years)
> Low insertion loss
> Accepts any data rate and any protocol on any port up to 10 Gbps, also 40 Gbps (DPSK, DQPSK) and 100 Gbps (DPQPSK)
> Fully transparent at all data rates and protocols from T1 to 40 Gbps
> 1RU Rack-mount chassis Low profile modular design
> Simple to install, requires no configuration or maintenance
> Low-cost transceivers applicable, existing equipment can still be used
> ISO 9001 manufacturing facility

And for the DWDM, which represents Dense Wavelength Division Multiplexing was created to multiplex DWDM channels into one or two fibers. This sort of products could make the optimum usage of your existing fiber optic infrastructure in an ideal way. It puts multiple signals together and sends them simultaneously along a fiber, simply with transmissions happening at different wavelengths, and also this turns an individual fiber to the virtual equal of a handful of fibers. It is really a good and also the most reasonable solution to date that will meet our increasing desires of large data transmissions. And also by using the impressive DWDM technique, it will transmit greater than 40 connections of numerous standards, data rates or protocols more than one common fiber optic link. 

For the DWDM products, the DWDM mux products combine several data signals into one for transporting on the single fiber as the dwdm demux separate the signals into one for transporting on the single fiber as the dwdm mux products combine several data signals into one for transporting on the single fiber as the dwdm demux separate the signals on the opposite end. Each signal reaches a different wavelength, they cooperate with each other perfectly.

The common configuration of DWDM mux is 4, 8, 16 and 32 channels. These DWDM modules passively multiplex the optical signal outputs from 4 or maybe more electronic devices, send on them an 
individual optical fiber and then de-multiplex the signals into separate, distinct signals for input into electronic devices in the opposite end with the fiber optic link.

The DWDM mux products always own these following features:

> Low insertion loss and high isolation.

> Simple to install, requires no configuration, and disassembles easily to clean.

> Fully transparent at all data rates and protocols.

> Completely passive, no power required, no cooling and so on.

As the very best China fiber optic products supplier, FiberStore Inc. provides lots of this sort of products which are reliable and economical. If you may well not find it on our website, you can call us to customize it to suit your needs. For standalone multiplexers, it could increase dual fiber link capacity up to 18 channels and could be combined with a lot of the CWDM GBIC, SFP, XFP, X2, XENPAK, SFP modules. It’s also super easy to make use of and install, and also have some common features because the DWDM mux. If you would like to know our fiber optic cables, optical cable price, indoor outdoor cable and more, please visit our website or contact us.

How To Choose The Fiber Optic Cable

Choosing a fiber optic cable (click here to know optical cable price)for any given application requires considering installation and environmental requirements plus long-term fiber requirements to cover expansion to newer communications networks. Installation requirements include where and how the cable will be installed, such as pulled in conduit outdoors or placed in cable trays in a building. Long term requirements need to consider moisture or water exposure, expected temperature range, tension (aerial cables), or other environmental factors.

You should contact several cable manufacturers and give them detailed specifications for the installation. They will want to know where the cable is going to be installed, how many fibers you
need and what kind of fibers (singlemode, multimode or both in what we call hybrid cable.) You can also have a “composite” cable that includes copper conductors for signals or power. The cable companies will evaluate your requirements and make suggestions. Then you can get competitive bids.
Since the plan will call for a certain number of fibers, consider adding spare fibers to the cable fibers are cheap compared to the cost of installing additional cables. Then you won’t be in trouble if you break a fiber or two when splicing, breaking-out or terminating fibers. And consider future expansion needs. Most users install many more fibers than needed, especially adding singlemode fiber to multimode fiber cables for campus or premises backbone applications.

Underground cables are generally installed in conduit which is usually a 4 inch conduit with several innerducts for pulling cables. Here cables are designed for high pulling tension and lubricants are used to reduce friction on longer pulls. Automated pulling equipment that limits pulling tension protects the cables. Very long runs or those with more bends in the conduit may need intermediate pulls where cable is pulled, figure-8ed and then pulled to the next stage or intermediate pulling equipment is used. Splices on underground cables are generally stored above ground in a pedestal or in a vault underground. Sufficient excess cable is needed to allow splicing in a controlled environment, usually a splicing trailer, and the storage of excess cable must be considered in the planning stage.

Direct buried cable is placed underground without conduit. Here the cable must be designed to withstand the rigors of being buried in dirt, so it is generally a more rugged cable, armored to
prevent harm from rodent chewing or the pressures of dirt and rocks in which it is buried. Direct burial is generally limited to areas where the ground is mostly soil with few rocks down to the depth required so trenching or plowing in cable is easily accomplished. Splices on direct buried cables can be stored above ground in a pedestal or buried underground. Sufficient excess cable is needed to allow splicing in a controlled environment, usually a splicing trailer, and the storage of excess cable must be considered.

Aerial installations go from pole to pole, but the method of securing cables can vary depending on the situation. Some cables are lashed to messengers or other cables, such as CATV where light fiber cables are often lashed to the heavy coax already in place. Cables are available in a “8” configuration with an attached steel messenger that provides the strength to withstand tension on the cable. Some cables are made to directly be supported without a messenger, called all-dielectric sefl-supporting cables that use special hardware on poles to hold the cables.

Optical ground wire is used by utilities for high voltage distribution lines. This cable is an electrical cable with fibers in the middle in a hermetically-sealed metal tube. It is installed just like standard electrical conductors. Splices on aerial cables can be supported on the cables or placed on poles or towers, Most splices are done on the ground, although it is sometimes done in a bucket or even on a tent supported on the pole or tower. Hardware is available for coiling and storing excess cable.

Choosing a singlemode fiber is easy, with basic 1300 nm singlemode (called G.652 fiber) adequate for all but the longest links or those using wavelength-division multiplexing. Those may need special fiber optimized at 1500-1600 nm (G.653 or G.654). For premises and campus cable plants, OM3 type laser-optimized 50/125 multimode fiber is probably the best choice for any multimode OSP runs, as its lower attenuation and higher bandwidth will make most networks work better.

Including more fibers in a cable will not increase the cable cost proportionally; the basic cost of making a cable is fixed but adding fibers will not increase the cost much at all. Choosing a standard design will help reduce costs too, as manufacturers may have the cable in stock or be able to make your cable at the same time as others of similar design. The only real cost for adding more fibers is additional splicing and termination costs, still small with respect to total installed cost. And remember that having additional fibers for future expansion, backup systems or in case of breaks involving individual fibers can save many future headaches.

Common traits of all outside plant cables include strength and water or moisture protection. The necessary strength of the cable will depend on the installation method. All cables installed outdoors must be rated for moisture and water resistance. Until recently, most people chose a gel-filled cable (or also outdoor cable), but now dry-water blocked cables are widely available and preferred by many users.

These cables use water-absorbing tape and power that expands and seals the cable if any water enters the cable. Installers especially prefer the dry cables as it does not require the messy, tedious removal of the gel used in many cables, greatly reducing cable preparation for splicing or termination.

OSP cable construction types are specifically designed for strength depending on where they are to be direct buried, buried in conduit, placed underwater or run aerially on poles. The proper type must be chosen for the cable runs. Some applications may even use several types of cable. Having good construction plans will help in working with cable manufacturers to find the appropriate cable types and ordering sufficient quantities. One must always order more cable than route lengths, to allow for service loops, preparation for termination and excess to save for possible restoration needs in the future.

Like cable types, cable plant hardware types are quite diverse and should be chosen to match the application type and cable types being used. With so many choices in hardware, working with cable manufacturers is the most expeditious way to chose hardware and ensure compatibility. Besides cable compatibility, the hardware must be appropriate for the location, which can be outdoors, hung on poles, buried, underwater, inside pedestals, vaults or buildings, etc. Sometimes the hardware will need to be compatible with local zoning, for example in subdivisions or business parks. The time consumed in choosing this hardware can be lengthy, but is very important for the long term reliability of the cable plant.

If you would like to purchase our optical fiber cable or want to know more about our fibre optic cable specification, please visit our website or call us Tel: +86 (755) 8300-3611.

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.

How To Quickly Build Your Fiber Optic Network

What is the most consuming work in building a fiber optic network

There are two works are usually the largest line items in an fiber optic network installation budget: pulling the fiber optic cables and terminating or splicing the cables.

When pulling the fiber optic cables, you must comply with the minimum bending radius of the cable, prepare the cable ends with a pulling eye kit, and filling the conduit with lubricant to minimize the damage risk to the cables.

That’s not all, termination of the fiber optic cable can be a daunting task if you install a large fiber optic network. The time needed for different optical fiber cable termination is different. Therefore, the choice of the optical fiber cale is a key decision to reduce your fiber optic cable cost.

Loose tube gel-filled vs.tight buffered fiber optic cable

Choose the cable type is one of the biggest cost drivers in the cable terminal. There are two basic types of cable used for system installation:

1. Loose tube gel-filled cable

2. Tight buffered fiber optic breakout cables

Loose tube fiber optic cable

Traditionally, loose tube fiber optic cable has been used for outdoor long-haul links. Due to the fragile bare fibers and gel filling, which must be cleaned prior to termination, loose tube gel-filled cable is the most difficult to splice and terminate and also has the highest termination material costs.

Loose tube fiber cable type must normally be terminated or spliced close to the cable entryway of a building to switch to indoor-style cable, as it is generally incompatible with indoor fire codes.

Tight buffered fiber optic breakout cables

Tight buffered cables require less care to avoid damaging fibers when stripping back the cable. Each fiber is protected with its own 900 um diameter buffer structure, which is nearly four times the diameter and six times the thickness of the 250um coating.

This structure leads to the excellent performance of moisture and temperature of indoor outdoor cable tight buffer, lets them directly to terminate connector.

Tight buffered breakout fiber optic cable, has individual subcables within a primary outer cable sheath. This cable is the cable of choice for direct connectorization, as each fiber has its own aramid strength member for connector tie-off.

The connectorized subcables may be directly connected to equipment without fear of fiber damage of connector/fiber interface damage in most situations. Fiber optic breakout cable is by far the least expensive and easiest cable type to terminate and requires the least experience on the part of the installer.

Price comparision between two type of optical cables

Optical cable price is typically lower for breakout fiber cable than for loose tube cable when fiber counts are fairly low. Loose tube cables are lower in price for higher fiber counts. However, higher splicing and termination costs of loose tube cable over moderate-to-short lengths can far exceed the additional cost of tight-buffered cables.

The advantages of breakout fiber optic cable

A typical case in which termination costs dominate is an interbuilding (outdoor) cable entering a building where the required termination point of the cable is some distance from the building 
entryway, and it is necessary to switch from outdoor to indoor cable.

Outdoor loose tube gel-filled cable is typically required to be transitioned to indoor cable within 50 feet of the cable entry point to comply with fire codes. However, a tight-buffered indoor/outdoor cable can be used throughout the link, requiring no transitions at the building entryway.

FiberStore have many types of outdoor loose tube cables, such as All-Dielectric Loose Tube Cables, Gel-Filled Loose Tube Cables, Double-Jacket Loose Tube Cables, Central Loose Tube Cables. They offer the best protection in an outdoor environment.