January 26, 2014

Jacket Material Of Bulk Fiber Optic Cable

Bulk fiber optic cables and patch cords are various types available(Ribbon, tight buffered, breakout, distribution,...), just the jacket material ofbulk fiber optic cablethere is a wide selection.

Plenum Rated Cable
Plenum type is with the highest standard for fire-resistant and it require almost no halogen gas be generated in case it got burned. Complies with NFPA-262 and UL-910. Plenum cables must self extinguish and not reignite. Because plenum cables are routed through air circulation spaces, which contain very few fire barriers, they need to be coated in flame-retardant, low smoke materials. These plastics offer good resistance against possible fire, and in the event that they do begin to burn, they will not emit large quantities of harmful fumes. Plenum cables can be installed in plenums without the use of conduit, meeting specific requirements for flammability and smoke generation.

Riser Rated Cable
Comples with UL-1666. Defined for usage in vertical tray applications such as cable runs between floors through cable risers or in elevator shafts. These spaces cannot be used for environmental air. These cables must self extinguish and must also prvent the flame from traveling up the cable in a vertical burn test. Riser type bulk fiber optic cables are also required to be fire-resistant, but it is not so strict as halogen gas produced if it caught on fire. They are certified for use in riser applications, engineered to prevent the spread of fire from floor to floor in a building.

Low Smoke Zero Halogen (LSZH) Rated Cable
Examples of Halogens include Fluorine, Chlorine, Bromine, and Iodine. LSZH fiber optic jackets are more fire-resistant compared with common PVC jacketed cables, even when they are on fire. When burned,LSZH cableemits low smoke and no halogen substances. This feature is designed to not only protect the environment, but the low smoke is also important to the safety and presence of people and the facilities that could be on fire. These cables will self extinguish but cannot pass UL-910 or UL-1666 for a plenum or riser rating. LSZH cables are used in shipboard applications and computer networking rooms where toxic or acidic smoke and fumes can injure people and/or equipment.

ROHS Rated Cable
RoHS, short form for the Restriction of Hazardous Substances in electrical and electronic equipment. RoHS is made for environmental protection and to protect the health of the products' users. RoHS mentioned six types of hazardous substances: Pb,Cd, Hg, Cr6+, PBDE and PBB.

PVC Cable
PVC means polyvinyl chloride, and it is a common plastic cable insulation or jacket. In a fire, PVC-coated wires can form hydrogen chloride fumes, the chlorine serves to scavenge free radicals and is the source of the material's fireretardance.

After the introduction of cable jacket material above, you may figure out how to choose the type of cable jacke. For fire safety and code compliance concerns, choose Plenum rated cable. If fire safety is not any concern or local code requirement, choose PVC for ease of installation and lower cost.BUY Fiber Optic Ribbon Cable, Riserhere.

Posted by: mikofy at 06:57 AM | No Comments | Add Comment
Post contains 507 words, total size 4 kb.

January 22, 2014

Fiber Optic Ribbon Cable With Riser jacket

Ribbon cable is preferred where high fiber counts and small diameter cables are needed. This cable offers the highest packing density, since all the fibers are laid out in rows, typically of 12 fibers, and the ribbons are laid on top of each other. Not only is this the smallest cable for the most number of fibers, it's usually the lowest cost. Typically 144 fibers in ribbons only has a cross section of about 1/4 inch or 6 mm and the jacket is only 13 mm or 1/2 inch diameter! Some cable designs use a "slotted core" with up to 6 of these 144 fiber ribbon assemblies for 864 fibers in one cable! Since it's outside plant cable, it's gel-filled for water blocking or dry water-blocked. Another advantage of ribbon cable is Mass Fusion Splicers can join a ribbon (12 fibers) at once, making installation fast and easy. Ribbon pigtails are spliced onto the cable for quick termination. Premises cabling also uses some ribbon cables, often in preterminated cabling systems where 12 fibers are terminated in one MTP connector. These cables are common in LAN backbones and data centers.

The precise fiber and ribbon geometries result in excellent mass splicing yields. Surrounding the tube are dielectric strength members that provide tensile strength and innovative waterblocking tapes that reduce cable weight and preparation time. This design is also compatible with standard ribbon cable procedures and hardware for easy field installation and reduced labor costs.
FiberStore-Ribbon-Cable
A coherent optical fiber bundle in which the configuration is flat rather than round, giving an output in a line. Fiber optic ribbon cable is available bare (without a jacket or Kevlar) and also available with a plenum jacket or Riser jacket. A typical ribbon has 12 color coded fibers and cables can be made with multiple Ribbons. The jackets on ribbon cable are oval and can be broken out into fanout assemblies providing individual single connectors or using a MTP connector for multiple fibers being terminated with one connector.

Ribbon Riser Cables with OFNR rated sheath are intended for indoor premises and riser installations. A UV-resistant, flame-retardant jacket allows added flexibility in placing this cable outdoors, whether it is an aerial, duct or direct-buried application, or indoor general horizontal or riser applications. The cable consists of a ribbon stack of 12-fiber ribbons within a gel-filled central buffer tube. With easily accessible individual 250μm colored fibers, the ribbons have readily identifiable ribbon ID numbers and fiber colors. Utilizing a dry central tube design, the ribbon riser cable proves to be a clean and easy cable for rapid installation, preparation, and splicing. With a high density ribbon design, it is the ideal cable for connecting the vault to the distribution panel, minimizing the use of riser space.BUY Fiber Optic Ribbon Cable, Riserhere. FiberStore not only provide fiber optics, but also there are POF Fiber(Plastic Optic Fiber) available, want to knowPOF Fibermore, just click it.

Posted by: mikofy at 08:23 AM | No Comments | Add Comment
Post contains 493 words, total size 4 kb.

January 15, 2014

Digital Video SFP Transceivers Information

FiberStore is a reliable and trusted supplier of cost-effective SD/HD/3G-SDI video SFP transceiver modules. Our SMPTE MSA SD/HD/3G-SDI video SFP transmitter modules are manufactured with high quality components and tested strictly to ensure the reliability and quality. These HD SD digital video optical transceivers are available in SFP packages and in different configurations.

Society of Motion Picture and Television Engineers (SMPTE) has standards for handling high definition video signals with pathological pattern. SMPTE’s standards currently call for SMPTE 259M (SD-SDI 270/360Mb/s), SMPTE 292M (HD-SDI 1.485Gb/s), SMPTE 424M (3G-SDI 2.97Gb/s), and SMPTE 424M. SMPTE 424M is a standard which expands upon SMPTE 259M, SMPTE 344M and SMPTE 292M, allowing for bit-rates of 2.970 Gbit/s and 2.970/1.001 Gbit/s over a single link cable.

Features
Robust error free transmission of signals from 50Mbps to 3Gbps with up to 80km single-mode fiber.
MSA pin arrangement.
Supports video pathological patterns for SD-SDI, HD-SDI and 3G-SDI
Hot-pluggable, low Power Consumption.
Diagnose and control via I2C interface including:
Monitoring of laser bias current, average output power, receive optical power, supply voltage and temperature.
RoHS compliant and Telcordia GR-468 compliant.
Video Transceiver like Video CWDM SFP/ Video Single-mode SFP / Video Multimode SFP / Video APD Receiver / Video BiDi SFP / video DWDM SFP available.

Applications
SMPTE 297-2006 compatible optical-to-electrical interfaces
HD Video Broadcast cameras
High-density video routers
Fiber-Optic Video Transmission System

Advantages Of Video SFP Module
a. The Video pluggable SFP can meet high quality video signal transmission requirements over long distances.

b. The Video SFP transmitter also provides an optional Digital Diagnostic functions to monitor extensive output optical power, bias current, supply voltage and operating temperature.

c. Video SFP allows uncompressed digital video component signal transport over any standard optical transport system, allows standard optical transceivers (MSA compliance), supports digital video links over fiber optic cabling.

FiberStore SFP-3G31-2D-XX video SFP module is high performance, cost effective single channel 3G HD, transmits optical signals at 1310nm wavelength with up to 2km single mode optical fiber (SMF), designed to transmit optical serial digital signals as defined in SMPTE 297-2006. The single channel 3G HD video SFP transceiver modules are specifically designed for robust performance in the presence of SDI pathological patterns for SMPTE 259M, SMPTE 344M, SMPTE 292M and SMPTE 424M serial rates. They are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472.

As a major fiber optic transceiver manufacturer, FiberStore also supplies other transceivers such as multi mode SFP, compatible SFP, SFP+, XFP, X2, XENPAK, 40G QSFP+, 40G & 100G CFP, direct attach cables and so on.


Posted by: mikofy at 08:42 AM | No Comments | Add Comment
Post contains 426 words, total size 4 kb.

January 08, 2014

Quick Fiber Termination Tools

Fiber cable termination is the addition of connectors to each optical fiber in a cable. The fibers need to have connectors fitted before they attach to other devices. Two common solutions for fiber cable termination are pigtails and fanout kits or breakout kits.

For doing fiber termination, using fiber termination tools is helpful and save you a lot time. Common fiber termination tools include cable jacket stripper, connector crimper, fiber scriber or cleaver, kevlar cutter, polish film, wipe paper, fiber optic polishing paper, polishing plate (glass or plastic), Fusion splicer and appropriate strippers and cleavers, etc.

Fusion splicing of factory preterminated pigtails. Also popular with telcos, long-distance carriers, and the military, this type of termination method offers performance that is as good as a factory preterminated connector with very low back reflection. Again, this termination method requires an expensive fusion splicer, and connector costs are at a mid-price point.

Fusion splicing machines have decreased in price and increased in features and quality like many other technologies. Whereas 10 years ago a fusion splicer was big and bulky and cost approximately $25,000, today's units are smaller, lighter and more efficient, and they typically cost $7,000 to $12,000. Although a fusion splicer is still an expensive tool, its cost can be easily justified, providing a return on investment in many high-end or high-volume applications. Same phenomenon comes to the fiber optic tool kit price, with more useful tool and more functions but a lower price.

A fiber optic termination tool can be used for varying purposes. Fiber optic termination tools are ideal for:
Mechanical strippers or chemical solvents are used to strip the buffer and coating material from fiber before being cleaned with alcohol.
A diamond or metal blade is then used to nick the fiber before tension is applied causing it to break.
The fiber is then polished using grit abrasive paper until the finish is smooth.
The end of the fiber is then inspected with a microscope to insure that the end of the fiber is smooth.
Fibers are then attached to connectors or they are joined together by splicing.

FiberStore provide a complete line of cables, connectors, fiber termination tools, tool kits, and test equipments for installing and testing fiber optic infrastructures, also offer part of our larger, comprehensive line of fiber optic products for long haul transmission. For bulk fiber optic cable, the fiber optic termination kit enable you fast and reliable termination in the field. Fiber optic tool kits from FiberStore are built to accommodate all types of fiber systems and connectors. Whether you are terminating, testing, splicing, inspecting or cleaning fiber optic cabling and networks. Our fiber tool kits feature different fiber kits to handle all aspects of servicing fiber systems from splicing, crimping, stripping and polishing to testing, restoring, inspecting and fiber safety.

Posted by: mikofy at 07:06 AM | No Comments | Add Comment
Post contains 472 words, total size 4 kb.

January 03, 2014

Underground Cable Wire Locators

Today, locating is complex as telecommunications cables join utility lines in the underground environment. The underground cable wire locator relies on the basic technology--injecting an electrical signal onto the cable being located, to locating a specific circuit breaker, pinpointing wires before drilling and verifying dig sites underground. Underground wire finder is the rugged, economical solution for locating cable, wires and pipes that are underground no matter whether they are energized or de-energized.
FiberStore-Underground-Cable-Wire-Locator
NF-816
A cable locator has two basic components: a hand-held receiver and compact transformer(or transmitter). Both are battery-powered, relatively light and housed in weather-resistant cases. The receiver locates underground lines by detecting magnetic fields created by electrical current passing through cable or tracer wires. Information is displayed in a window at the top of the receiving unit.

Anatomy of underground cable locator

There are many types of underground wire finders, but they all functioned according to the same principles. The transmitter sends an electric signal which reaches the underground cables, which is then picked up again by the receiver. These devices can help you map an area before you start any actual work.

The transmitter puts an electrical signal onto the cable or pipe being traced, while the receiver picks up that signal, allowing the locator operator to trace the signal's path and follow the cable being located.

Usually receivers use different frequencies and modes to identify different types of utilities. Frequency choices can range from less than 1 kilohertz to about 480 kHz. With this range of frequencies, it is important to keep one thing in mind, if you want to start out at the lowest frequency and if that frequency works, don't change it, lower frequencies seem to bleed over less and stay on the conductor you are attached to better.

The three most common methods of sending signals onto the cable are direct connect, general induction, and inductive coupling. In the inductive coupling method, the cable must be grounded to form a complete circuit path. The direct-connect method allows you to physically attach your transmitter to the cable to be located. That may mean connecting to a cabinet or a pedestal and then gaining access to the shield that surrounds the cable, which is usually grounded at this point.

If directly attaching to the cable is impossible, then the induction method may be the logical choice. Here, you place the transmitter on the ground directly over the cable. Once the transmitter is turned on, it induces a signal into any nearby conductor within its range. This, of course, can lead to problems if there are multiple cables buried within close proximity because the signal could be picked up on a cable other than the one you are trying to trace.

Although inductive coupling doesn't let the user directly connect to the cable, underground wire finder provides a higher level of confidence than does general induction. It uses a donut-shaped coupling device that surrounds the cable and emits a signal onto the cable.

Posted by: mikofy at 04:28 AM | No Comments | Add Comment
Post contains 501 words, total size 5 kb.

<< Page 1 of 1 >>
29kb generated in CPU 0.0072, elapsed 0.0543 seconds.
32 queries taking 0.049 seconds, 59 records returned.
Powered by Minx 1.1.6c-pink.