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Gaining Insight Into Fiberstore & Its Transceiver Modules

Gaining Insight Into Fiberstore & Its Transceiver Modules

Do you still worry about the costs for transceiver modules which keep adding up over time? Wanna use the compatible transceiver but still worry about the quality and compatibility? To most of the transceiver users, they are in the same psychological warfare when choosing the transceivers—to acquire a product that is with high quality and high compatibility, and also can help save more budget. Fiberstore, a professional manufacturer and supplier of compatible optical transceiver modules, may be your ideal choice. Today, let’s to gain insight into Fiberstore and its transceiver modules.


1. The transceiver can’t be compatible with your original-brand switch.

2. The quality of the transceiver is not reliable and the service life is short.

3. Poor performance.

4. Others, such as refurbished modules, power consumption etc.

In Fiberstore, you can completely relieved. The above worries all do not have to worry. Why?


Fiberstore-transceiversWide Compatibility
100% compatible with all major vendors and systems, such as Cisco, HP, Juniper, Dell, Brocade etc., always guarantee perfect performance in your network.

Reliable & Stable
Each transceiver module is with lifetime warranty and tested on the real working environment before shipping which ensures the reliable and stable performance.

With the strict quality control system and the OEM experience for many years, all the raw materials are secure and the performance can be comparable to the original.

To be confidence with Fiberstore transceivers, it will guarantee a reliable and stable connectivity for your high-speed fiber transmission system.

title-3product-details1Premium Metal Housing
Made of premium pluggable hard gold plating, it can ensure repeated plugging and unplugging. In addition, by strict control of the gold plating thickness, it can reach a superior quality and ensure excellent connection as well as reducing the working temperature.

product-details2High-Quality Laser
The high-quality laser is with high sensitivity, low attenuation and high quality which ensure the perfect signal transmitting and receiving.

product-details3Advanced Chip
The advanced chip offers the high performance and low power consumption to the module solution which ensures the signal to be transmitted with high speed and stable performance.

product-details42Perfect Combination
The combination of the gold-finger (conductive metal), chip and metal housing makes a perfect transceiver module.


Fiberstore truly understands the value of compatibility and interoperability to each optics and the necessity of test assured program. In our test center, we care of every detail from staff to facilities—professionally trained staff, advanced test facilities and comprehensive original-brand switches, to ensure our customers to receive the optics with superior quality.


Fiberstore always strives to upgrade the logistic and storage system in order to better serve customers. By greatly expanded the scale of our warehouse and improve the logistic service and speed. Fiberstore now has flexible and powerful storage and inventory management system which keeps the pickup, package, distribution and storage flow running smoothly. A variety of optical communication products are with ready stock which meet customers’ diverse demands. Additionally, all in-stock products will be shipped in 12 hours. By cooperating with the global premium logistics companies, products can be delivered to customers in a short time.


Brief Introduction to TOSA, ROSA and BOSA

Brief Introduction to TOSA, ROSA and BOSA

Fiber optic transceivers are key components of fiber optic transmission network. They are designed in small form-factor with some integrated optical sub-assemblies which can be suitable for high-density network. The major cost components of a transceiver module are the transmitter optical sub-assembly (TOSA), which converts an electrical and the receiver optical sub-assembly (ROSA). However, inside a BiDi (Bi-Directional) transceiver, there is a component with called “BOSA” (Bidirectional Optical Sub-Assemblies) which acts the role of TOSA and ROSA but with different principle.


TOSA Structure

The TOSA consists of a laser diode, optical interface, monitor photodiode, metal and/or plastic housing, and electrical interface. Depending upon the required functionality and application, other components may be present as well including filter elements and isolators. It is used to convert signal into an optical signal coupled into an optical fiber.


ROSA Structure

The ROSA consists of a photodiode, optical interface, metal and/or plastic housing, and electrical interface. Depending upon the required functionality and application, other components may be present as well including amplifiers. It is used to receive an optical signal from a fiber and convert it back into an electrical signal.


BOSA Structure

The BOSA consists of a TOSA, a ROSA and a WDM filter so that it can use bidirectional technology to support two wavelengths on each fiber. The most valuable advantage of BiDi transceivers is saving much cost on fibers.


After reading the brief introduction of TOSA, ROSA and BOSA above, I hope you could have a simple concept of these optical sub-assemblies. To purchase fiber optic transceiver modules, no matter what form factors, what data rates and what brands compatibility, I always recommend FS.COM as they can offer the most cost-effective products with a fast delivery service.


3rd-Party Optical Transceivers Testing & Verification

3rd-Party Optical Transceivers Testing & Verification

fiber optic transceiverOverview

As the technology and market of fiber optic transceivers continue to mature, 3rd-party optical transceivers are now widely used in optical transmission solutions. In order to ensure compliance, 3rd-party optical transceivers need to be tested and verified before inserting to the device. This paper will talk something about the testing and verification methods of 3rd-party optical transceivers.

Why Are 3rd-Party Optical Transceivers So Popular?

Nowadays, people prefer to use 3rd-party optical transceivers rather than officially-branded’s. The increasing market demands of 3rd-party transceivers illustrate the point. There is absolutely no difference between an officially-branded transceiver and a 3rd-party plug. As long as transceivers meet the international standards, there is no question of compatibility between fiber optic transceiver modules. Actually, most “third party” transceivers are made and assembled in exactly the same plants assembling officially-branded transceivers. In addition, it is very, very unlikely that a transceiver module will damage a switch. The primary benefit is the cost savings. The difference in price often exceeds 80 percent or more. Because transceiver costs are a significant part of the total system cost, it is important for designers to minimize these costs. With the significant savings, designers can re-invest and make their designs better. This is why 3rd-party transceivers are more and more popular with users.

Testing & Verification Are Necessary

There are methods to test and verify the 3rd-party transceiver modules, but it’s not always as easy as it seems. It was easier when the entire network was owned by a single company. As long as the system worked, there was no need to test all the subcomponents extensively. Now, you have so many components from so many different suppliers that you’ll need a test strategy to ensure that all components will meet the system level requirements. Here’s what you need to know if you’re considering testing and verifying in today’s world.

Test for an Acceptable Bit-Error Ratio

In a digital communications system, you must always operate within an acceptable bit-error ratio (BER). This is true whether you are testing an interface bus in a laptop computer or a telecommunications link. In general, when you’re testing in a digital communications system, it should be no more than one error in 1012 bits. If the desired BER is not reached, it must be determined if the problem is in the transmitter, receiver, or both.

Test to Determine Interoperability With a Worst-Case Transmitter

Network specifications should determine if the worst-case transmitter will interoperate with a receiver. Transmitters should also have a signal sufficient enough to support the worst-case transceiver.

Determine the Minimal Power Level & Jitter Level

A receiver will need to achieve a minimum power level to achieve the BER target. The level achieved will dictate the minimum allowed output power. Likewise, if the receiver can only achieve a certain level of jitter, this will be used to define the maximum amount of jitter that can be received from the transmitter without malfunctioning. Transmitter parameters may specify the wavelength and the output waveform shape.

Try Performing the Optical Eye-Mask Tests

You can perform optical eye-mask tests with oscilloscope, e.g. digital communications analyzers. Laser manufacturers will need their lasers to pass the tests without violations. Measurements will also need to be made within a significant margin.

Verify Compliance With Multiple Samples

Several waveform samples are required to remain compliant. Sometimes, a larger population of waveform samples will provide an accurate assessment of transmitter performance. The oscilloscope will collect more data, but as more samples are increased the likelihood of mask violations increase. Since the results are either pass or fail, it is important to acquire as many samples as possible to get an accurate assessment, which requires aligning the mask to the waveform.

Consider Expanding Your Eye Mask

When you expand the eye mask, you can verify a compliant hit ratio. Only a small number of samples are capable of intersecting a mask. Most oscilloscopes will include a modified version of the classic eye-mask test. Once you have the desired number of samples, you can determine how far you can expand the mask. Each test will determine how far you can expand the mask before the mask hits to the total waveform exceeds the ratio.

Know About Instrumentation Effects

Keep in mind that any transceiver test can be skewed based on the oscilloscope’s frequency response. You can achieve consistent results with a reference receiver. Most tests will use a fourth-order Bessel filter response, and the 3-dB bandwidth is at 75 percent of the data rate.

These are just a few ways to test and verify third-party optical transceivers. If you follow these tests and avoid the pitfalls, you’ll be able to test and verify your 3rd-party optical transceivers with ease.

Do you really know 1000BASE-LX / LH SFP?

Do you really know 1000BASE-LX / LH SFP?

1000BASE-LX/LH SFP1000BASE-LX LH SFP, one of the commonly used fiber optic transceivers, is now widely used in optical transmission systems. With the development of 40/100G Ethernet, even 400G Ethernet, this kind of transceiver module is nothing new to the module users. However, few people can deliver a clear answer to the question of what “1000BASE-LX / LH” infers. Well, if you know what it means, congratulations! you are the one of the few. You can skip today’s contents or share your experience to us in the comment. Actually, this post is a simple reference source for the beginners in this field or those who are lack of knowledge with fiber optic transceiver but have a strong interest in it.

To begin with, I’d like to make a brief introduction of 1000BASE-LX / LH SFP. This kind of SFP is similar with the other SFPs in basic working principle and size. But it is compatible with the IEEE 802.3z 1000BASE-LX standard, operating on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode fibers. In addition, when used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable (see Earlier article: Why Mode Conditioning Patch Cable Necessary for 1000Base-LX / LH Application).

As we know, an optical transceiver module is generally either made for single mode (long distance) or multimode (short distance). But 1000BASE-LX / LH SFP can be used for both singlemode and multimode. In fact, the Ethernet standard defines this optical interface specification as 1000BASE-LX10. However, many vendors as a proprietary extension called either 1000BASE-LX / LH or 1000BASE-LH before it was standardized. Thus, we often see 1000BASE-LX / LH rather than 1000BASE-LX10.

In a word, 1000BASE-LX / LH SFP has two identities. It is single mode by design, but when it gets together with its friend “mode conditioning patch cable“, it can also be used for multimode application. This patch cable inserts a single to multi splice on the transmit path, to “fill” the multimode fiber with light. It is more expensive than normal patch cables, but is necessary if using these on multimode fiber. At present, 1000BASE-LX / LH SFP is the only one kind of fiber optic transceivers which can be used for both singlemode and multimode applications. And these applications are depending on what fiber you use.

Warm Tips: Fiberstore offers amount of in-stock 1000BASE-LX / LH SFP which are compatible for Cisco, Juniper, Dell, Brocade, or Netgear in 10/20 Km options. Welcome to inquire or order! E-mail:

How to Find Right Compatible Optical Transceivers For Your Needs?

How to Find Right Compatible Optical Transceivers For Your Needs?

Fiberstore-fiber-optic-transceiverToday is Monday. And a new week began again. I am glad to be here and share some information about fiber optic transceivers. Recently, an old topic about compatible transceiver modules has been brought forward again in my community. Many users are still unsure that whether they should use the 3rd-party fiber optic transceiver modules in their switches. As we mentioned before, the 3rd-party compatible fiber optic transceiver modules cost much less than the origin brands’ which will help save much more on the their item budget. Thus, in general, out of consideration of saving cost, they would like to use. However, if you have the experience of using 3rd-party compatible fiber optic transceiver modules, you may find that sometimes it did not work as you expected. How to get out of this dilemma? How can we both save money and ensure the proper operation of work? In my opinion, to choose the right compatible fiber optic transceivers for your needs is the necessary precondition.

As the major brands, like Cisco, HP, etc. they offers switches and routers, as well as the fiber optic transceiver modules for their devices. Of course, they want their customers buying only their hardware, declaring that only official hardware will work and have after-sales guaranteed. They use encryption to refuse to access 3rd-party fiber optic transceiver. This is why some users will face failure when they using 3rd-party fiber optic transceivers. Actually, if you are not short of money, to use the official fiber optic transceivers is indeed a good choice. However, that was not the case. In many items, cost is always the first consideration of people. Using the official hardware means that you need to pay more than anyone else on the market. Fiber optic transceiver modules are standard products. As long as the transceivers meet the international standards, thereis no question of compatibility between fiber optic transceiver modules. Well, at this point, you may raise a question over the failure of using 3rd-party fiber optic transceivers. One of the main reason that you do not choose the right compatible fiber optic transceivers. So, in the following contents, I’d like to share three tips, or important factors, for choosing the right compatible fiber optic transceiver modules for your needs.

First, be clear on what fiber optic transceiver module you will need for your item. “Be clear on what you want” is always the first consideration of shopping. For instance, you plan to shop for clothes, then deciding what styles, what sizes and what colors you may rather prefer? Similarly, you should know the parameters (e.g. the data rate, transmission distance and the wavelength, etc.) of the fiber optic transceiver modules you may need. If you are uncertain which cables you are utilizing, or which one should be used for a better network, a quality networking vendor can give you the professional advices.

When you finish your purchasing plan, the next step is to find the right vendor for the 3rd-party fiber optic transceiver modules. Though the 3rd-party brands are less famous than the major brands, such as Cisco, HP, Juniper, Brocade and so on, there are some reputable compatible brands for fiber optic transceiver modules. When you choose the vendors, you should wipe your eyes and find the reputable one. Because brand quality is going to come into play. And buying compatible fiber optic transceiver modules from a reputable vendors can avoid fake or refurbished modules. Furthermore, a reputable vendor usually has a complete and perfect solution for the major brand series’ encryption which can reduce the issues when using on your device.

In addition, the other concern is the warranty. Most manufacturers offer short-term warranties, but consider buying from a vendor that offers longer service and support terms into the deal. A quality 3rd-party fiber optic transceiver should be able to provide years of performance, and be able to move across several pieces of hardware as your needs change over the years.

Of course, to choose the right compatible fiber optic transceivers for your needs is just the necessary precondition. If you want your fiber optic transceiver modules to have a longer life time, you should take care of it. To maximize the effectiveness and life of your fiber optic transceiver modules and fiber optic cables, do as the following:

  • Wear an ESD-preventative wrist strap that is connected to an earth ground whenever handling transceivers. The switch is typically grounded during installation and provides an ESD port to which you can connect your wrist strap.
  • Do not remove and insert a transceiver more often than is necessary. Repeated removals and insertions can shorten its useful life.
  • Keep the transceivers and fiber-optic cables clean and dust free to maintain high signal accuracy and to prevent damage to the connectors. Attenuation (loss of light) is increased by contamination and should be kept below 0.35 dB.
    >Clean these parts before installation to prevent dust from scratching the fiber-optic cable ends.
    >Clean the connectors regularly; the required frequency of cleaning depends upon the environment. In addition, clean connectors if they are exposed to dust or accidentally touched. Both wet and dry cleaning techniques can be effective; refer to your site’s fiber-optic connection cleaning procedures.
    >Do not touch the ends of connectors. Touching the ends can leave fingerprints and cause other contamination.
  • Inspect routinely for dust and damage. If you suspect damage, clean and then inspect fiber ends under a microscope to determine if damage has occurred.

Related Recommendation: Fiberstore, the leading manufacturer and supplier of compatible fiber optic transceiver modules, has achieved a breakthrough in HP compatible transceiver modules and successfully commercialized. Not only SFP+ SR, LR but also SFP+ ER, ZR, CWDM SFP+ together with the HP X2 transceiver modules are available now. (For more buyers’ guides).