Introduction of Waterproof Fiber Optic Cables

by www.fiber-mart.com

Fiber-mart.com has developed a new type of waterproof fiber optic cable that has been manufactured according to IEC standards. Fiber optic cables are typically used to connect fiber optic cable with fiber optic equipment. The product possesses low insertion loss, repeat push-pull performance and high return loss and these qualities make the cable user-friendly.

 

Waterproof fiber optic patch cables are designed to fit for outdoor applications. The waterproof fiber optic cables are with strong PE jacket and armored structure, they can resist high temperature and suit to use in harsh environment.

We supply both single mode and multimode waterproof fiber cables, custom cable assemblies are available. Waterproof fiber optic cable assemblies include waterproof fiber optic cable and waterproof fiber optic patch cord.by adopting the special structure cables and connectors, these fiber cable assemblies are widely used in CATV and other applications.

 

Waterproof Fiber Optic cables are widely used in data transmission network, typical types are with 2 fiber cores, 4 fiber cores or 8, 12 fiber cores. Atrone produce the fiber optic waterproof cables strictly according to IEC standards, the products feature low insertion loss, high return loss, good interchangeability and repeat push-pull performance, which make them easy to use. The waterproof fiber optic cables are with strong PE jacket and waterproof sealed head connectors; they can be used in harsh environment.

 

Waterproof Fiber Optic cables Features:

Various kinds of connect interfaces optional such as SC,FC,ST,LC, etc.

Ceramic ferrules, PC, UPC, APC polishing optional

Low insertion loss, high return loss

Waterproof

Out diameter of inner fiber: 3.0mm, 2.0mm, 0.9mm

 

How to Installing or Removing Transceiver Modules (Part I)

by Fiber-MART.COM

After learning more about a variety basic or conclusive knowledge of transceiver modules these days, I believe you must have a new understanding or a deeper perception on the transceiver modules. In fact, that's just a tip of iceberg. My blog will continue to bring more information about the fiber optic transceiver modules, such as SFP transceiver, SFP+ transceiver, XFP and so on. Also the other knowledge of fiber optic communication, network, telecom etc. to all of my friends who like this field and like my blog. Since we discuss so much about the theories of the transceiver modules, today, I prefer to talk about something practicle, for instance, some knowledge about installing or removing different kinds of transceiver modules.

 

As we know, the commonly used transceivers include the following 8 types:SFP Cisco

 

 

GBIC (Gigabit interface converter)

 

SFP (small form-factor plable)

 

SFP+

 

XENPAK

 

X2

 

XFP

 

QSFP/QSFP+ (Quad Small Form-factor Plable Plus (QSFP+) )

 

CFP (C Form-Factor Plable)

 

 

The following content will cover the knowledge of installing or removing for these types of transceiver modules, namely today's main topic. But first of all, I want to talk about some preparations and considerations before starting the main topic.

 

What equipment should we need to install a transceiver module?

 

When installing a transceiver module, some tools you should need in order to make your installation go well. The following is a list of such tools which are recommended:

 

 

 

A Wrist strap or similar personal grounding device designed to stop ESD occurrences.

 

An Antistatic mat or similar which the transceiver can be placed on.

 

Fibre-optic end-face cleaning tools and inspection equipment.

 

A flat head screw driver is require to install a XENPAK transceiver module.

 

 

What should we need to know before or during installing or removing a transceiver module?

 

In order to ensure the safety and avoid leading the unnecessary losses, there are some items which we should consider before and during installing and removing the transceiver modules.

 

 

To preventing the cables, connectors, and the optical interfaces from damage. We must disconnect all cables before removing or installing a transceiver module.

 

Please be aware that the regular removal and installation a transceiver module can shorten its useful life. Thus, transceivers should not be removed or inserted more often than is required.

 

Transceiver modules are sensitive to static, so always ensure that you use an ESD wrist strap or comparable grounding device during both installation and removal.

 

Do not remove the dust plug from the transceiver slot if you are not installing the transceiver at this time. Similarly, we must use the dust plug to protect the optical bore if we don’t use the transceivers.

 

 

How to Install or Remove Transceiver Modules

 

1. How to Install or Remove GBIC Transceiver Module

 

GBIC Installing Steps

 

 

step 1: Firstly you should attach your ESD preventive wrist strap to your wrist to prevent ESD occurrences.

 

step 2: Remove the GBIC transceiver from its protective packaging.

 

step 3: Verify that the GBIC transceiver module is the correct model for the intended network.

 

step 4: Using your thumb and forefinger, grip the sides of the GBIC transceiver and carefully align it with the GBIC socket opening on the device.

 

step 5: You can now carefully insert the GBIC transceiver module through the socket flap and slide it into the GBIC socket. A click will be heard once the GBIC is locked into the socket. Please ensure that the GBIC is inserted carefully straight into the socket.

 

(Please note: you should keep the protective dust plugs in place until making a connection. You should also inspect and clean the SC connector end faces immediately prior to making a connection.)

 

 

step 6: The dust plugs from the network interface cable SC connectors can now be removed, ensuring that these are saved for later use.

 

step 7: Next, inspect and clean the SC connector’s fiber optic end faces.

 

step 8: Remove the dust plugs from the optical bores on the GBIC transceiver module.

 

step 9: You can now attach the network interface cable SC connector to the GBIC.

 

GBIC Removing Steps

 

Please be aware that GBIC transceiver modules are static sensitive so you should always use an ESD wrist strap or similar grounding device when coming into contact with the device. Transceiver modules can also reach high temperatures so may be too hot to be removed with bare hands.

 

step 1: Disconnect the cable from the GBIC connector.

 

step 2: Release the GBIC from the slot by pressing the two plastic tabs located on either side of the GBIC (They must be pressed at the same time).

 

step 3: Once released carefully slide the GBIC straight out of its module slot.

 

step 4: The GBIC transceiver module should now be placed safely into an antistatic bag.

 

The basic principle and function of multifunctional SFP digital diagnosis

by Fiber-MART.COM

In recent years, fiber optic communications network has achieved rapid development. Optical transceiver module as one of the key technologies of optical fiber communication network is widely used in a variety of optical communication systems. Smart SFP optical module, which uses digital diagnostic functions fiber optic sfp module, it can achieve real-time monitoring of network management unit transceiver module temperature, supply voltage, laser bias current, and optical power transmission and reception. The measurement of these parameters can help identify the location management unit fiber link failure occurs, simplify maintenance, improve system reliability. Optical modules to achieve real-time monitoring capabilities for effective life prediction module, isolation system failures, as well as to verify the correctness of the module status during the installation and commissioning of high practical value. The author based digital diagnostics, design and implement a monitoring platform of an optical module. The platform uses the microcontroller via a 2-wire serial bus to access the modules to read and deal with related parameters, while module parameters to be read in real time through the LCD display. And with CDR (clock data recovery) section, can signal clock recovery and data retiming, as a basis for hardware monitoring module in the relevant technical specifications designed monitoring platform.

 

1.1 the basic principle of digital diagnosis

 

In the SFF-8472MSA, the specification of the digital diagnostic functions and related SFF-8472 for details. The specification, in the northern part of the circuit board module detection and digital signal parameters. Then, provide calibrated results or provide digitized measurements and calibration parameters. This information is stored in standard memory results in order to read through the two-wire serial interface. Retained the originalbidi sfp transceiver / GBIC Address Address A0h at the map and added a 256-byte storage unit at the address A2h SFF-8472 in the agreement. This information is stored in addition to providing parameters to detect, but also defines the alarm flag or alarm conditions, the state of the mirror each pin, limited number of control and user-writable storage unit.

 

1.2 The role of digital diagnostics

 

(1)intelligent life prediction 10g sfp module provides a prediction methods of the parameters of the laser degradation of real-time monitoring.Light module within the light power feedback control unit will power output control at a stable level, power control is by increasing the laser Tx_Bias (offset current).Therefore, we can through the monitoring of the laser bias current can be used to predict the life of the laser.

 

(2) fault location In optical links, the location of the fault occurs is critical to business fast load positioning.Fault location, need comprehensive analysis of status, a pin and measuring parameters.Through to the detected Tx_power (sending power), Rx_power (received power), Temp (temperature), Vcc (voltage), Tx_Bias (offset current) warning and alarm status, Tx Fault image of the state variables (alarm) and RxLOS (receiving signal loss), and other information for comprehensive analysis, can locate the Fault is in the module or on the lines, in local module or in the remote module.

 

(3) compatibility verification by monitoring the voltage is outside the specified range, whether the received optical power overload or below the receiver sensitivity, temperature exceeds the operating temperature range, etc., work environment analysis module meets the data sheet or compatible with the relevant standard.

4 Steps in Fiber Optic Fusion splicer

by Fiber-MART.COM

Fiber Optic Fusion splicer may be the act of joining two optical fibers end-to-end using heat. The thing is to fuse both the fibers together in such a way that light passing with the fibers is not scattered or reflected back from the splice, and thus the splice as well as the region surrounding it are almost as strong because virgin fiber itself. The basic fusion splicer apparatus includes two fixtures which the fibers are mounted and two electrodes. Inspection microscope assists in the placement in the prepared fiber ends into a fusion-splicing apparatus. The fibers they fit in to the apparatus, aligned, and then fused together. Initially, fusion splicing used nichrome wire as the heating unit to melt or fuse fibers together. New fusion-splicing techniques have replaced the nichrome wire with fractional co2 (CO2) lasers, electric arcs, or gas flames to heat the fiber ends, causing them to fuse together. The little size of the fusion splice along with the development of automated fusion-splicing machines make electric arc fusion (arc fusion) the most popular splicing approaches to commercial applications.

 

Splicing fiber optic cable ends together is often a precise process with hardly any room for error. This is because the optical fiber ends must be gathered absolutely perfectly to be able to minimize potential optical loss or light leakage. Properly splicing the cable ends demands the usage of a high-tech tool called a fusion splicer. A fusion splicer perfectly mates the optical fiber ends by melting or fusing them to the other. Splicing fiber cables surpasses using connectors considering that the fusing process results in a superior connection that features a lower level of optical loss. Now,I will introducts 4 steps to fusion splicing.

 

Step1

Know that fusion splicing is essentially several optical fibers being permanently joined together by welding utilizing an an electric arc. The need for an exact cleaver is suggested should you desire less light loss and reflection problems. Understand that an excellent cleaver just for this precise work is nessary. If your poor spice is created, the fiber ends may well not melt together properly and problems can arise.

 

Step2

Prepare the fiber by stripping the coatings, jackets and tubes, ensuring only bare fiber is left showing. You will need to clean all of the fibers associated with a filling gel. A clean environment is imperative for a good connection.

 

Step3

Cutter the fiber. A great wire cutter is suggested to secure a successful splice. When fusing the fibers together, either align the fibers manually or automatic, determined by what type of fusion splicer you’ve got. When you’ve got a new proper alignment, a power arc can be used to melt the fibers together creating a permanent weld of these two fiber ends.

 

Step4

Protect the fiber with heat shrink sleeve, silicone get. This can maintain your optical fiber resistant to any outside elements it may encounter or future breakage.

 

Alternatives to fusion splicing include using fiber optic connectors or mechanical splices because both versions have higher insertion losses, lower reliability far better return losses than fusion splicing. Want to know more about fiber splicer knowledges, pls visit FiberStore.com to find your answer.

7 Advantages of Fiber Optic Cables Over Copper Cables

When you’re planning a new network cable installation or considering upgrades to an existing network, you might want to consider using fiber optic cables.

 

Network fiber cables have some definite advantages over copper cables.

 

Copper cables were originally designed for voice transmission and have a limited bandwidth. Fiber optic cables provide more bandwidth for carrying more data than copper cables of the same diameter. Within the fiber cable family, singlemode fiber delivers up to twice the throughput of multimode fiber.

 

2. Faster Speeds

Fiber optic cables have a core that carries light to transmit data. This allows fiber optic cables to carry signals at speeds that are only about 31 percent slower than the speed of light—faster than Cat5 or Cat6 copper cables. There is also less signal degradation with fiber cables.

 

3. Longer Distances

Fiber optic cables can carry signals much farther than the typical 328-foot limitation for copper cables. For example, some 10 Gbps singlemode fiber cables can carry signals almost 25 miles. The actual distance depends on the type of cable, the wavelength and the network.

 

4. Better Reliability

Fiber is immune to temperature changes, severe weather and moisture, all of which can hamper the connectivity of copper cable. Plus, fiber does not carry electric current, so it’s not bothered by electromagnetic interference (EMI) that can interrupt data transmission. It also does not present a fire hazard like old or worn copper cables can.

 

Compared to copper cables, fiber optic cables are thinner and lighter in weight. Fiber can withstand more pull pressure than copper and is less prone to damage and breakage.

 

6. More Flexibility for the Future

Media converters make it possible to incorporate fiber into existing networks. The converters extend UTP Ethernet connections over fiber optic cable. Modular patch panel solutions integrate equipment with 10 Gb, 40 Gb and 100/120 Gb speeds to meet current needs and provide flexibility for future needs. The panels in these solutions accommodate a variety of cassettes for different types of fiber patch cables.

 

7. Lower Total Cost of Ownership

Although some fiber optic cables may have a higher initial cost than copper, the durability and reliability of fiber can make the total cost of ownership (TCO) lower. And, costs continue to decrease for fiber optic cables and related components as technology advances.

FIBER-MART(Fiber-MART.COM), based in HongKong & U.S., a worldwide leading supplier in fiber optic network, fttx, fiber cabling & connectivity, fiber testing, fiber splicing, fiber polishing & integrated network solutions. Devoting on the research & development, design, manufacture, and fiber connectivity network solutions for carriers, ISPs, content providers and networks, has always engaged in high-performance and innovation.

FAST FACTS ABOUT UNDERSEA FIBER OPTICS

It may seem like technology today is especially reliant on wireless data transmission – more and more locations offer free Wi-Fi to patrons and guests, and unlike the days of dial-up, your phone and computer don’t need to be physically connected to something in order to transmit data. Well, while it is true that we’re a world obsessed with wireless content, there’s simply no way the internet could function without the network of ocean-crossing cables that were laid many years ago to connect the continents.

 

PHYSICAL CABLE LINKS

Fiber optic cables on the ocean floor carry 99 percent of all transoceanic digital communication, which includes phone calls, websites and emails. Without these cables, you would have a hard time FaceTiming with your colleagues in London or emailing family while vacationing in Ireland. Relying on satellites to transmit data Fast Facts About Undersea Fiber Opticswould make communication possible, but it would be incredibly slow compared to the speed that the fiber optic cables afford. In Antarctica – the only continent without a physical cable link to the rest of the world – researchers have a hard time transmitting their work because satellite bandwidth is somewhat unreliable and data transmission is at a premium.

 

REINVENTION OF AN OLD IDEA

While fiber optic cabling is a new technology, using cables isn’t a new idea. In the 1850s, a telegram sent from Queen Victoria to President Buchanan via the world’s first transatlantic cable was successfully transmitted in about 17 hours. While the man in charge of the cable – Edward Orange Wildman Whitehouse – fried it by trying to make it faster, the start of transoceanic communication can trace back more than a century and a half.

 

MODERN CABLE INSTALLATION

Installation of modern cables is slow, expensive work, with cables that are hundreds of thousands of miles long and placed as deep in the ocean as Everest is tall. They can be as thick as a soda can, or as slim as a marker. Boats called cable-layers are in charge of Fast Facts About Undersea Fiber Opticslaying the cables safely, but it’s not as simple as dropping a line into the sea. Cable-layers must ensure that the cables do not interfere ecologically with the ocean, which means cables have to be put down across flat, bare ocean floor, and can’t transverse coral reefs or sunken ships. The installation of one cable across one ocean can cost hundreds of millions of dollars.

 

FIBER OPTIC CABLE VULNERABILITY

Making things even more expensive, the cables are vulnerable. The U.S. government constantly monitors the location of key cables to make sure that other countries aren’t messing with them. Last year, the Russians got a little too close for comfort to cables that help run the economy, government and citizens’ lives in the West. Natural disasters, boat anchors and fishing vessels could also be harmful to the cables. Plus, as you may have heard, sharks have acquired a taste for internet cats and hilarious memes.

 

The cables that currently cross the oceans are built to last for the next 25 years. As of 2014, there were 285 cables on the ocean floor, 22 of which had not moved to active use. These “dark cables” are lying in wait to be “lit” to help carry data and information from one continent to another. While the amount of data consumption is undoubtedly going to increase in the coming years, these cables are already up to the challenge.

Three Media Options for 10GbE in Data Centers

With the added network infrastructure complexity, power demands, and cost considerations, 10 Gigabit Ethernet (GbE) comes to network administrators’ thinking point. While 1GbE connection is able to handle the bandwidth requirements of a single traffic type, 10GbE has been preferred as the ideal solution by customers to meet current and future input/output (I/O) demands. Delivering more bandwidth, 10GbE simplifies the network infrastructure at the same time by consolidating multiple gigabit ports into a single 10gigabit connection.

Generally speaking, there are three media options for 10GbE: 10GBASE-CX4, SFP+, and 10GBASE-T. Each option has its own virtual point and downside in terms of cost, power consumption and distance reach. This paper analyzes these three options respectively, helping you understanding the pros and cons of current 10GbE media options.

10GBASE-CX4

10GBASE-CX4 was the first 10G copper standard published by 802.3 (as 802.3ak-2004), an early favorite standard for 10GbE deployments. Using the XAUI 4-lane PCS (Clause 48) and copper cabling similar to that used by InfiniBand technology, 10GBASE-CX4 is able to reach 15 meters. Practically, this option is limited by its heavy weight and expensive cables. In addition, the size of the CX4 connector prohibited higher switch densities required for large scale deployment. Larger diameter cables are purchased in fixed lengths, causing problems in managing cable slack. What’s more, the space isn’t sufficient to handle the larger cables.

10GBASE SFP+

SFP+ fiber optic cables and SFP+ direct attach cables (DACs) are all better solution than CX4.

10GBASE SFP+ Fiber Optic Cables

10GBASE-SR, 10GBASE-LR, 10GBASE-LRM are all specified to work through fiber optic cables, such as JD094B (shown below). This HP 10GBASE-LR SFP+ transceivers takes fiber as its transmission medium with distance up to 10km. Really, great for latency and distance, but fibers are expensive. Although they offer low power consumption, the project of laying fiber networks in data centers is limited due to the cost of the electronics largely. The fiber electronics can be four to five times more expensive than their copper counterparts, meaning that ongoing active maintenance, typically based on original equipment purchase price, is also more expensive.

JD094B, HP 10GBASE-LR SFP+ transceiver

10GBASE SFP+ DAC

DAC can be classified in to direct attach copper cable and active optic cable (AOC). On the one hand, SFP+ DAC is a lower cost option alternative to fiber, with its distance reaching flexible in 1m (eg. SFP-10G-AOC1M), 2m, 3m, 5m, 7m and so on. On the other, SFP+ DAC is not backward-compatible with existing 1GbE switches. Besides, this solution requires the purchase of an adapter card and requires a new top of rack (ToR) switch topology. And the cables are much more expensive than structured copper channels, and cannot be field terminated. All these factors make SFP+ DAC less popular the 10GBASE-T which will be discussed soon.SFP-10G-AOC1M, for short reach

10GBASE-T

10GBASE-T, or IEEE 802.3an-2006, is a standard released in 2006 to provide 10Gbit/s connections over unshielded or shielded twisted pair cables with distances up to 100metres (330 ft). Due to additional encoding overhead, 10GBASE-T has a slightly higher latency in comparison to most other 10GBASE standards. What’s more, 10GBASE-T offers the most flexibility, the lowest cost media. And because of its backward-compatibility with 1000BASE-T, 10GBASE-T can be deployed based on existing 1GbE switch infrastructures that are cabled with CAT6 and CAT6A (or above) cabling, keeping costs down while offering an easy migration path from 1GbE to 10GbE.

Conclusion

The deployment of 10GbE infrastructure should be much easier, with these media options in mind, coupled with your own such project considerations as cost, power consumption and distance reach. fiber-mart, as a professional fiber optic product supplier, offers a broad selection of fiber and copper cables, including SFP-10G-AOC1M mentioned above. For more information about 10GbE media options, you can visit fiber-mart.

Waterproof Fiber Optic Cables

fiber-mart.com has developed a new type of waterproof fiber optic cable that has been manufactured according to IEC standards. Fiber optic cables are typically used to connect fiber optic cable with fiber optic equipment. The product possesses low insertion loss, repeat push-pull performance and high return loss and these qualities make the cable user-friendly.

 

Waterproof fiber optic patch cables are designed to fit for outdoor applications. The waterproof fiber optic cables are with strong PE jacket and armored structure, they can resist high temperature and suit to use in harsh environment.

We supply both single mode and multimode waterproof fiber cables, custom cable assemblies are available. Waterproof fiber optic cable assemblies include waterproof fiber optic cable and waterproof fiber optic patch cord.by adopting the special structure cables and connectors, these fiber cable assemblies are widely used in CATV and other applications.

 

Waterproof Fiber Optic cables are widely used in data transmission network, typical types are with 2 fiber cores, 4 fiber cores or 8, 12 fiber cores. fiber-mart.com produce the fiber optic waterproof cables strictly according to IEC standards, the products feature low insertion loss, high return loss, good interchangeability and repeat push-pull performance, which make them easy to use. The waterproof fiber optic cables are with strong PE jacket and waterproof sealed head connectors; they can be used in harsh environment.

 

Waterproof Fiber Optic cables Features:

Various kinds of connect interfaces optional such as SC,FC,ST,LC, etc.

Ceramic ferrules, PC, UPC, APC polishing optional

Low insertion loss, high return loss

Waterproof

Out diameter of inner fiber: 3.0mm, 2.0mm, 0.9mm