Tuesday, December 30, 2014

Choose and Get SFP+ Module and Cables Effectively

According to the standard of the IEEE 802.3 ae committee ratified the 10 Gigabit Ethernet and the general specification, it defines a number of fiber optic interfaces. These standard interfaces attempted to satisfy a number of different objectives including support for MMF and SMF compatibility. They include 10GBASE-SR SFP transceiver, 10GBASE-LR SFP transceiver, 10GBASE-ER SFP transceiver, 10GBASE-ZR SFP transceiver, copper CU SFP+, maybe someone does not know the last one, related product you can see: Cisco SFP-H10GB-CU1M. Their applications are using 10 Gigabit Ethernet and 2x/4x/8x/16x Fiber channel, for example, the cisco SFP+ module, the optical interoperability with 10Gbase XENPAK, 10 GBase X2, and 10GBase XFP interfaces on the same link; the device can plug into an Ethernet SFP+ port of a Cisco switch, just do not need to power down if installing or replacing, these are all its advantages. The Cisco quality ID feature enables a Cisco platform to identify whether the module is certified and tested by Cisco. Then many people also think this problem that when we use the cisco transceiver with cisco switches or even patch cables, do they need the vendor ti physically hang the access points and do they need to configure the access points and how many buildings will the access points be installed into, well, the next paragraph will give you the answer. The vendor needs to physically hang the access points and the points are controller based and they will need to be configured. All access points are to be installed on the ceiling, the only exception would be in gym where it would to be mounted to the ceiling beam. The figure shows that push the SFP front of the module to make it into the slot.
plug into sfp transceiver
Many people know that SFP, SFP+ and they are not familiar with QSFP, then i will introduce one kind of QSFP transceiver to you. The 40 Gb/s QSFP+ transceiver. It is a kind of fiber optical modules with four independent optical transmit and receiver channels. It combines the higher density attractions of modules with some the key advantages normally associated with SFP+ based modules. And another product you also cannot forget: sfp+ direct attach cable. In Fiberstore, there is a similar attach cable, sfp+ direct attached twinax copper, it is suitable for very short distances and offer a useful way to connect within racks and across adjacent racks. Cisco offers passive twinax cables in lengths of 1, 1.5, 2, 2.5, 3 and 5 meters, and active twinax cables in lengths of 7 and 10 meters. Related product: twinax cable 0.5 m.
sfp+ cable
And Fiberstore's product are fully compliant with different brands, such as Cisco, hp, huawei, Finisar… and standards like Ethernet, Fibre Channel, Infianiband, SONET/SDH/OTN and PON standards, 1g sfp and 10g SFP+ and other transceivers that not mentioned such as WDM module, Bidi module all can get from Fiberstore. We have real wide variety of fiber optic transceivers. I do believe that it is a quite great choice for you.
Article Source: Fiber Optical Networking

Monday, December 29, 2014

What Is The Difference Between Singlemode SFP and Multimode SFP

The singlemode SFP and multimode SFP here mean the SFP transceivers which work at different types of optical fibers, ie simglemode SFP will work with singlemode fiber, while multimode SFP will work with multimode fiber. So, what’s the different between them? And what should we notice when using them. Today, we are going to have a discussion around this topic.
Singlemode SFP vs Multimode SFP
Singlemode SFP
Singlemode fiber (SMF) has much tighter tolerances for optics used. The core is smaller and the laser wavelength is narrower. This means that SMF has the capability for higher bandwidth and much longer distances in transmission. Singlemode SFPs (SMF SFPs) work mainly in 1310nm and 1550nm wavelength and is mostly used in long distances transmission environment reaching 2km, 10km, 40km, 60km, 80km and 120km. The color coded bale clasp and color arrow on label are generally blue, yellow or purple. And the color of compatible fiber optic patch cord is yellow.
SMF SFPSMF
  • Blue is the 1310nm module
  • Yellow is the 1550nm module
  • Purple is the 1490nm module
Multimode SFP
Multi-mode fiber (MMF) uses a much bigger core and usually uses a longer wavelength of light. Because of this, the optics used in MMF have a higher capability to gather light from the laser. In practical terms, this means the optics are cheaper. The common multimode SFPs (MMF SFPs) work in 850nm wavelength and is only used for short distance transmission reaching 100m and 500m. Though it’s not able to transport for long distance, it can transport many kind of optical signals. Their color coded bale clasp and color arrow on label are black and the used fiber optic patch cord is usually orange.
MMF SFP
MMF
What Should We Notice When Using Singlemode SFP & Multimode SFP
  • Ensure that the SFPs in both ends of the fiber patch cord are of the same wavelength. A simple method is that the color of the modules must be consistent.
  • In general, to ensure the data accuracy, short-wave SFP modules use with multimode fibers (ie. orange fiber patch cord), while long-wave SFP modules use with single-mode fiber (ie. yellow fiber patch cord).
  • Do not over bend or winding fiber optic cables when using them. This will increase the attenuation of light in transit.
  • If you don’t use the SFP, you must use the dust plug to protect the optical bore.
Warm Tips
As we know, single mode and multimode are not interchangable. The main reason is the wave length of the laser and core size of the fiber. However, take Cisco SFP for example, there is a type of the GBIC SFP module (part number “SFP-GE-L” or “GLC-LH-SM“) which can support both single mode and multimode fiber. SFP-GE-L and GLC-LH-SM are 1000BASE-LX/LH SFP transceivers. But a mode-conditioning patch cord is required when using the SFP-GE-L or GLC-LH-SM with 62.5-micron diameyer MMF. You must install a mode-conditioning patch cord between the GBIC module or SFP module and the MMF cable on both the transmit and the receive ends of the link when link distances are greater than 984 ft (300 m). In this case, Cisco do not recommend using the SFP-GE-L or GLC-LH-SM and MMF with no patch cord for very short link distance (tens of meters). The result could be an elevated bit error rate (BER). Actually, other brand, like Brocade, also can offer the similar SFP module.
When we choosing the SFP module, we must confirm the transmission distance and wavelength we want to use in. This will help us to choose the right SFP modules more efficiently. In addition, the costs for transceiver modules which keep adding up over time will be a budget pressure for many users. To save more, we can choose the compatible module without sacrificing any quality or reliability but only with a low cost. Fiberstore, an excellent supplier, supplies 100% compatible fiber optic transceiver modules of many brands, such as Cisco, HP, Juniper, Brocade, Finisar etc. with a incredible discount that may be a good choice for you.

Monday, December 22, 2014

Difference between Cisco SFP Module GLC-SX-MM and GLC-SX-MMD

With the widespread used with the Cisco switches and routers, Cisco's GBIC transceivers and Small Form-factor Pluggables (SFP) transceivers for Gigabit Ethernet and Fibre Channel applications have also been popular in the market. These small, modular optical interface transceivers offer a convenient and cost effective solution for the adoption of Gigabit Ethernet and Fibre Channel in data center, campus, metropolitan area access and ring networks, and storage area networks. The 1000BASE-SX SFP (ie, the GLC-SX-MM and GLC-SX-MMD) is one of the common types of Cisco SFPs. Compatible with the IEEE 802.3z 1000BASE-SX standard, it operates on legacy 50 μm multimode fiber links up to 550 m and on 62.5 μm Fiber Distributed Data Interface (FDDI)-grade multimode fibers up to 220 m. It can support up to 1km over laser-optimized 50 μm multimode fiber cable.
Due to the similar model, users are usually confused with the Cisco GLC-SX-MM and GLC-SX-MMD when they are choosing the SFP modules. So, what's the difference between them? We are going to talk something about the difference between GLC-SX-MM and GLC-SX-MMD in this paper.
As their models suggest, there is only little difference between GLC-SX-MM and GLC-SX-MMD, Obviously the "D". Here, letter D in the model means the DOM functionality. DOM stands for Digital Optical Monitoring. Digital Optical Monitoring (DOM) is an industry wide standard, intended to define a digital interface to access real-time operating parameters such as:
  • Optical Tx power
  • Optical Rx power
  • Laser bias current
  • Temperature
  • Transceiver supply voltage
Which means you can configure your device to monitor optical transceivers in the system, either globally or by specified ports. When this feature is enabled, the system will monitor the temperature and signal power levels for the optical transceivers in the specified ports. Console messages and syslog messages are sent when optical operating conditions fall below or rise above the XFP or SFP manufacturer’s recommended thresholds. It is an useful function and now is very popular with users.
It is worth noting that the GLC-SX-MM SFP has been no longer for sale since March 8, 2013 in Cisco. It is entirely replaced by GLC-SX-MMD. Cisco official encourages the customers to migrate to new model SFP transceiver modules. However, for usage and cost considerations, many users still use the old model SFPs. GLC-SX-MMD is much more expensive than GLC-SX-MM, but except the additional DOM function, they work as the same when use in the switch. This is why GLC-SX-MM is still used by many users. To a great extent, this situation is caused by the cost. Fiberstore offers a low cost option for you in both GLC-SX-MM and GLC-SX-MMD. No matter you still like to use the GLC-SX-MM, or wanna replace the new version GLC-SX-MMD, you can find the corresponding products in Fiberstore with a very low price and do not worry about the quality because all of Fiberstore's Cisco compatible SFP modules are tested in-house prior to shipment to guarantee that they will arrive in perfect physical and working condition before delivered worldwide. In addition, there is a big stock of these two products, you can enjoy the same-day shipping when you order them in Fiberstore.
Product Recommendation NEW Cisco GLC-SX-MMD Compatible 1000BASE-SX SFP 850nm 550m EXT DDM Transceiver Module
glc-sx-mmd
Key Features
  • Data-rate of 1.25Gbps/1.063Gbps operation
  • 850nm VCSEL laser and PIN photodetector for 550m transmission
  • Hot-pluggable SFP footprint duplex LC connector Interface
  • Class 1 FDA and IEC60825-1 Laser Safety Compliant
  • Compatible with SFP MSA
  • Compatible with SFF-8472
  • +3.3V single power supply and TTL Logic Interface
  • Average Output Power:-9.5~ -3dBm
  • Receiver Sensitivity:-17dBm
  • Extended temperature range (EXT):-5 to 85°C
  • Built-in Digital Diagnostic Function
Applications
  • Fiber Channel Links
  • Gigabit Ethernet Links
  • Fast Ethernet Links
  • Other Optical Links
Where to Buy
Cisco SFP transceivers offered by Fiberstore are the most cost-effective standards-based SFP modules fully compatible with Cisco Switches & Routers. Fiberstore provides a series of Cisco comaptible SFP modules which can be equivalent to Cisco GLC SX 1000BASE SX SFP (GLC-SX-MM), Cisco SFP 1000BASE LX LH SM fiber transceiver (GLC-LH-SM), Cisco GLC-SX-MMD, Cisco GLC-LH-SMD, Cisco GLC-T 1000BASE-T SFP (GLC-T), Cisco GLC-ZX-SMD, and Cisco CWDM SFP, Cisco DWDM SFP, etc.
Read More Related Article About SFP Modules:

Fiberstore Direct Attach Cables

Meeting the ever growing need to cost-effectively deliver more bandwidth, Fiberstore SFP+ Direct Attached Cables deliver lower power, lower latency and higher density for today's Data Centers and Storage Area Networks.
SFP+ Direct Attached Cables are a low cost alterna-tive to traditional fiber and twisted-pair copper cabling in top-of-rack and middle-of-row Data Center deployments.
In today's Data Center, more bandwidth is needed to support the use of server virtualization where multiple virtual machines are combined on a single physical host server. To accommodate the ever-growing number of operating systems and applications residing on individual servers, virtualization requires significantly increased data transmission between the servers and switches.
At the same time, the amount and type of devices residing on the network have dramatically increased the amount of data that needs to be transmitted to and from storage area networks (SANs) and Network Attached Storage (NAS). Depending on recent industry forecasts, the amount of enterprise data being transmitted will grow at more than 20% between 2011 and 2016. Consequently, Data Center managers are looking for cost-effective methods to provide more bandwidth, while optimizing power consumption and supporting modularity and scalability.
To meet these requirements, Fiberstore has expanded its line of Data Center Solutions to include SFP+ Direct Attached Cables. A low cost, low power consumption and low latency solution that is ideal for high-density, in-rack 10 gigabit per second (Gb/s) connections between servers and switches, SFP+ Direct Attached Cables feature rugged twinaxial cables that connect directly into a low-profile small form-factor pluggable plus (SFP+) diecast connector housing.
Fiberstore SFP+ Direct Attached Cables offer the smallest 10 gigabit form factor and a small overall cable diameter for higher density and optimized rack space in 10 gigabit Ethernet (GbE) uplinks and 10 gigabit Fiber Channel SAN and NAS input/output connections. The use of SFP+ Direct Attached Cables can cost up to three times less than fiber optic solutions, while offering lower latency and consuming up to 50% less power per port than current copper twisted-pair cabling systems.
Becoming increasingly popular for short distance top-of-rack (ToR) and middle-of-row (MoR) Data Center deployments, and expected to account for over 40% of 10 gigabit equipment ports, SFP+ Direct Attached Cables also provide enhanced scalability and flexibility. By connecting several servers or storage devices together in a single rack, the use of intermediate patch panels is eliminated and cabling outside of the rack is limited to the main switch connection, making it easy to move racks, deploy one rack at a time and isolate cabling changes to a single rack.
SFP+ Direct Attached Cables provide better cable management for high-density deployments and enhanced electrical characteristics for the most reliable signal transmission.
  • Supports 10 Gb/s data rates with backwards compatibility to 1 Gb/s
  • Supports 8x/4x/2x/1x Fibre Channel data rates for SANs and NAS
  • Compliant with the latest SFF-8431 specifications
  • Passive assemblies available in 1-foot increments from 1.6 to 32.8 ft (0.5 to 10 m)
  • Active assemblies available in 2-foot increments from 3.3 to 39.4 ft (1 to 12 m)
  • Connector cage designed for high-speed differential signaling
  • Easy pull-to-release latching mechanism
  • Extremely short lead times on all passive assemblies
  • Backed by superior support and a 10-year product warranty
Fiberstore Compatible Interconnect Solutions: the 10-Gigabit and 40-Gigabit High Speed Cable Compatible for Cisco. Fiberstore offers SFP+ twinax copper cables, SFP+ active optical cables, QSFP copper cable, breakout cable and QSFP AOC cables with 100% compatibility for Cisco. 0.5 m SFP+ cable is the shortest length that Fiberstore provided, and the SFP+ DAC cable 10m is the longest length, in addition, you can choose the custom service for special needs, such as length, color, etc.
Ordering Information
SFP+ Passive Cable Assembly, Cisco Compatible, 10G:
  • Cisco SFP-H10GB-CU1M, 1 meter, 30AWG, $18.00
  • Cisco SFP-H10GB-CU2M, 2 meter, 30AWG, $22.00
  • Cisco SFP-H10GB-CU3M, 3 meter, 30AWG, $27.00
  • Cisco SFP-H10GB-CU5M, 5 meter, 24AWG, $38.00
  • Cisco SFP-H10GB-CU7M, 7 meter, 24AWG, $75.00
  • Cisco SFP-H10GB-CU10M, 10 meter, 28AWG, $88.00
Cisco SFP-H10GB-CU5M
Cisco SFP-H10GB-CU5M SFP+ cable
SFP+ Active Cable Assembly, Cisco Compatible, 10G:
  • Cisco SFP-10G-AOC1M, 1 meter, $70.00
  • Cisco SFP-10G-AOC2M, 2 meter, $71.00
  • Cisco SFP-10G-AOC3M, 3 meter, $72.00
  • Cisco SFP-10G-AOC5M, 5 meter, $74.00
  • Cisco SFP-10G-AOC7M, 7 meter, $76.00
  • Cisco SFP-10G-AOC10M, 10 meter, $79.00
Cisco SFP-10G-AOC1M cable
Cisco SFP-10G-AOC1M cable
QSFP+ Active Cable Assembly, Cisco Compatible, 10G:
  • Cisco QSFP-4X10G-AOC1M, 1 meter, $281.00
  • Cisco QSFP-4X10G-AOC2M, 2 meter, $287.00
  • Cisco QSFP-4X10G-AOC3M, 3 meter, $292.00
  • Cisco QSFP-4X10G-AOC5M, 5 meter, $302.00
  • Cisco QSFP-4X10G-AOC7M, 7 meter, $313.00
  • Cisco QSFP-4X10G-AOC10M, 10 meter, $333.00
Cisco QSFP-4X10G-AOC2M Compatible 40GBASE QSFP to 4 SFP+ Active cable
Cisco QSFP-4X10G-AOC2M QSFP to 4 SFP+ Active cable
Read More Related Articles About DAC Cables:

Thursday, December 18, 2014

How Much do You Know About 10/100/1000BASE-T SFP Transceivers?

10/100/1000BASE-T SFP
is a triple-speed 1000BASE-T/100BASE-TX/10BASE-T IEEE 802.3az Gigabit transceiver integrated into a single monolithic CMOS chip. It can be used for both Fast Ethernet and Gigabit Ethernet applications.
This kind of SFP module supports 10/100/1000BASE-T operation in host systems with Serial Gigabit Media Independent Interface (SGMII), and with it the host systems needn't to support 1000BASE-T autonegotiation. The 10/100/1000BASE-T SFP module uses the 1000BASE-X autonegotiation information it receives from the host to adjust the configuration options that it advertises during copper autonegotiation. To the host system, the 10/100/1000BASE-T SFP will appear to be a fiber transceiver. From the host's perspective, acknowledgements received during the 1000BASE-X autonegotiation process are coming from the remote link partner even though they are coming from the 10/100/1000BASE-T SFP.
The 10/100/1000BASE-T SFP transceiver performs all physical-layer functions for 1000BASE-T, 100BASE-TX, and 10BASE-T Ethernet on standard Cat 5 UTP cable of link lengths up to 100 m (328 ft). 10BASE-T can also run on standard category 3, 4, and 5 UTP. You can safely use Cat 5e or Cat 6 cables, as these are improved versions of Cat 5. For short cable runs, with intricate routing, stranded cable is recommended, as it is more flexible.
Tips: SGMII is a mode of communication between the MAC and PHY to allow for 10/100/1000BASE-T operation. In 100BASE-TX mode, the MAC still transmits to the PHY at 1.25 Gbps, but each byte is repeated 10 times. The PHY then converts this repeated data to 100BASE-TX format. The process is the same in 10BASE-T mode but each byte is repeated 100 times.
Where can we get such cost-effective transceivers? I think most people will think about Cisco, HP, Juniper etc. But their products are not cost-effective at all. As I know, the Finisar SFP modules might be a wiser choice. The part number of Finisar copper 10/100/1000 SFP that supports 10/100/1000 autonegotiation is FCLF-8521-3. The FCLF-8521-3 is based on the proven digital signal processor technology, combining digital adaptive equalizers, ADCs, phase locked loops, line drivers, encoders, decoders, echo cancellers, crosstalk cancellers, and all other required support circuitry integrated into a single chip. With full compliance to IEEE 802.3az standard, the FCLF-8521-3 substantially lower power consumption during periods of low-link utilization.
Finisar FCLF-8521-3 comaptible SFP Finisar FCLF-8521-3 comaptible SFP
Finisar FCLF-8521-3 compatible SFP offered by Fiberstore cost only 15 dollars now. Compared to the original price, we can save almost 80% by using Finisar compatible SFPs. See more Finisar SFP+ modules.
Read More Related Article:

Tuesday, December 16, 2014

The General Concerns of Using Cisco Compatible SFP

It seems to be an old topic that whether using compatible fiber optic transceiver is reliable. We have already discussed this topic few weeks ago. Without a doubt, the answer is affirmative.
However, I have found that there are still many questions about this topic in many forums, Q & A sites etc, and most of them are about 1000base t sfp transceiver or other compatible SFP modules. As we know, Cisco is the worldwide leader in networking that transforms how people connect, communicate and collaborate, and owns the most of the switching and routing markets, ie. there are plenty of users of Cisco. In order to ensure the safety and smooth communication of the system, a good switch or router is very necessary, but the costs for other components, such as Cisco SFP modules, usually can add up over time. Due to the open standard of the fiber optic transceiver, the compatible modules have been emerged as the times require. Compared to the original brand, the low cost is really the attractions of of the compatible one. However, it is precisely because the incredible low price, many users usually worry about the quality. This is why we often find the discussion about the compatibility.
Today, I am going to continue the topic about the reliability of Cisco compatible transceiver module through a post in Yahoo Answer. The source of the post.
the best answer selected by poster
After reading the post, we found that it is a general situation when we decide to buy some SFP modules for your Cisco devices. In the post, the poster want to buy some SFP modules of the model “glc-sx-mmd“. In general, if we have enough budget, we will buy the Cisco original without the slightest hesitation. Maybe just wanna choose some proper suppliers, or wanna save more, he surfs on the Internet and finds a supplier that offers Cisco SFP only on sale $ 8.00. “it is incredible, is it real?” We can hear him from his tone full of surprise. Through visiting the link he gave, we can know the $ 8.00 Cisco compatible SFP is one of the products of Fiberstore.
Do you have a similar experience like the poster? I think, many users have. But to this qustion, there were divergent views that we can easily see from the answer in this post.
The answer of Yahoo user “I Like Stories” has been selected by the poster as the best answer that give us a full answer of his opinion as well as the reason why original modules is so expensive.
Although he has not clearly indicated whether the compatible modules should be chosen, his opinion is objective.
In most cases, we are biased in favour of the original one due to the stability and good after-sale service of Cisco, or other famous brand. As we said above, if the budget is enough, the original one is the best choice. However, the continued cost of the SFP is too much for many enterprise or lab. In front of the limitation of the cost, a good quality and competitive price module becomes very necessary. That’s why the compatible SFP modules are popular in the market.
From the other comments or the similar topics in many forums, we are not difficult to discover that most of the users have the experience of using Cisco compatible SFP (eg. 1000base sx SFP, cisco glc zx smd, sfp ge t 100 mbps module, etc.). And few of them have bad impression, except some complaints when applied in high security environment, the compatible one not work well as the original one, or even the wrong selection of an unqualified vendor or using the products of bad quality.
Actually, about the definition of the third party SFP transceiver, there is an explanation of the compatibility. If a device requires coded SFP modules (i.e. Cisco / HP) then you need either the OEM module or a compatible version. If the device does not require coded SFP (i.e. Netgear) then you can use any SFP, even a Cisco. In fact, many times, the main concerns of using compatible SFP is the quality and after sale service. If your supplier tells you their compatible SFP is 100% compatible with Cisco’s or any other brands, then you can rest assured to buy as now many suppliers have the service of lifetime warranty, but the premise is you shoud choose a good supplier. Using compatible SFP modules (eg. Cisco, Dell and Allied telesis SFP etc.) is that you won’t sacrifice any quality or reliability with all of the savings you receive. In fact, you get everything you’ve come to expect from Cisco SFPs at a low cost.
OK, at last, we return to the post of Yahoo answer. Is the $ 8.00 Cisco compatible SFP reliable? If it is offered by other suppliers, I can’t ensure it to you. But it is from Fiberstore, I think I can guarantee its authenticity and quality not to mention the other, just from the reviews. In addition, many famous enterprises in the world also use Fiberstore’s products. The blog of CloudFlare had mentioned Fiberstore’s SFP+ modules in their news about the latest generation servers — “We spent significant time testing a combination of SFP+ vendors before finding Fiberstore, a SFP+ manufacturer from which we could directly source SFP+s at a reasonable price that worked in the network gear we wanted to use.”
sfp reviews
So, what’s your opinions? In my opinion, if you have enough budget, I suggest you to buy the original one. It doesn’t mean that the compatible one is as not good as the original one but you could save more time in thinking of this question.  If you care the cost, compatible one is the best choice, but you should choose a good supplier as the premise. If you are still confused by the similar question, I hope this article will give you some helps.

Monday, December 15, 2014

Supply 3rd-Part Finisar Optical Transceiver

SFP transceiver is hot-swappable in industry-standard cages and connectors, and offers high-speed performance in a compact package. SFP is used to data rates up to 4 Gb/s and DWDM, including tunable versions. SFP and SFP+ (enhanced SFP) transceivers are interchangeable and can be used in the same cages as SFP transceivers. The electrical interface to the host board is a serial interface.
SFP+ is a standardized form factor for fiber optic transceivers and is used in datacom and telecom optical links, supplying a smaller footprint and lower power consumption than XFP transceivers. Initial standard applications focused on 8G Fibre Channel, 10G Ethernet and 10G Fibre Channel, where the electrical interface to the host board is a standardized serial interface called SFI.The applications have broadened to include SONET OC-192, SDH STM-64, OTN G.709, CPRI wireless, 16G Fibre Channel, and the emerging 32G Fibre Channel application.
About Finisar
Finisar Corporation (NASDAQ: FNSR) is a global technology leader for fiber optic subsystems and components that enable high-speed voice, video and data communications for telecommunications, networking, storage, wireless, and cable TV applications. For 25 years, Finisar has provided analytical optics technologies to system manufacturers to meet the increasing demands for network bandwidth. Finisar is headquartered in Sunnyvale, California, USA with R&D, manufacturing sites, and sales offices worldwide. For more information, visit www.finisar.com.
Finisar Corporation had introduced for advanced storage networking applications 8Gbps longwave SFP+ transceivers. The 1,310 nm transceivers support by SMF 1.4km and 10km transmission, also very suitable for FICON storage and disaster recovery applications. Based on edge-emitting laser technology, the device contains the Finisar digital diagnostic techniques, and the power consumption is lower than 1W. Finisar SFP + products now include 8Gbps and 10Gbps of short-wave and long-wave transceiver.
Some Finisar SFP and SFP+ Lists on Fiberstore
Fiberstore Finisar FCLF-8521-3
FCLF-8521-3
  • Manufacturer: Fiberstore
  • Product Type: 1000BASE-T SFP Transceiver
  • Data Rate: 1000Mbps
  • Application: Gigabit Ethernet over Cat 5 Cable
  • Wavelength: N/A
  • Transfer Distance: 100m
  • Connector Type: RJ45
  • Cable Type: Copper
Finisar FTLF1319P1BTL
FTRJ8519P1BNL
  • Manufacturer: Fiberstore
  • Product Type: SFP transceiver module
  • Data Rate: 1.25Gbps/1.063Gbps
  • Application: SONET/OC48
  • Wavelength: 850nm
  • Transfer Distance: 550m
  • Connector Type: LC Duplex
  • Cable Type: Multi-Mode Fiber (SMF)
Finisar FTRJ8519P1BNL
FTLF1319P1BTL
  • Manufacturer: Fiberstore
  • Product Type: SFP transceiver module
  • Data Rate: 2Gbps
  • Application: Gigabit Ethernet Switches and Routers
  • Wavelength: 1310nm
  • Transfer Distance: 10km
  • Connector Type: LC Duplex
  • Cable Type: Single-Mode Fiber (SMF)
Finisar FTLX8571D3BCV
FTLX8571D3BCV
  • Manufacturer: Fiberstore
  • Product Type: SFP+ transceiver module
  • Data Rate: 1.25 Gb/s or 9.95 to 10.3 Gb/s bit rates
  • Application: 1000BASE-SX 1G Ethernet / 10GBASE-SR/SW 10G Ethernet
  • Wavelength: 850nm
  • Transfer Distance: 300m
  • Connector Type: LC Duplex
  • Cable Type: Multi-Mode Fiber (MMF)
Fiberstore is the largest fiber optics manufacturers of China, which provides 3rd party fiber optic transceivers and all the Finisar SFP is certified 100% compatible with Finisar switch and router product lines. These Finisar SFP transceivers can be mixed and deployed with Finisar OEM SFP transceivers for seamless network performance and interoperability. Our cost-effective Finisar SFP modules are delivered to worldwide from our factory directly. Discuss your requirements with us. Contact us now!
Article Source:

Thursday, December 11, 2014

SFP+ Cables And QSFP+ Cables Manufacturers

SFP+ Twinax Copper Cables

Active cables and passive cables. Active cables are copper cables for data transmission. They use silicon (semiconductor) to boost the performance of the cable. On the contrary, a cable without a chip is considered as a “passive cable”.

10Gb/s Passive Copper Cable used for very short link and lowest cost

  • Compliant to SFF-8431
  • SFP+ Multi‐Source Agreement and SFF-8461
  • SFP+ Copper Cable Multi‐Source Agreement
  • Up to 10m length (AWG24)

The SFP+ cables support 10G Ethernet, 8G Fibre Channel, 10G FCoE, 10G InfiniBand and various unified architecture link applications. SFP + cable is widely used in the top of the Rock switches and high-performance server for interconnection. Top of the Rock switch power consumption is less than 10GBASE-T ports switch. In the market waiting for more energy efficient 10GBASE-T switch, SFP + cables are more popular for at the Top of the Rock switch. 28 AWG and 24 AWG cables are available for DAC cables. The standard lengths for the sfp+ direct attach cable are 1m, 2m, 3m, 5m, 7m and 10m. Custom lengths are available upon request.

Fiberstore Provides Cisco Compatible SFP+ 10gbase twinax Copper Modules:

  • 10GBASE-CU SFP+ Cable 1 Meter, passive SFP-H10GB-CU1M
  • 10GBASE-CU SFP+ Cable 1.5 Meter, passive SFP-H10GB-CU1.5M
  • 10GBASE-CU SFP+ Cable 2 Meter, Passive SFP-H10GB-CU2M
  • 10GBASE-CU SFP+ Cable 2.5 Meter, Passive SFP-H10GB-CU2.5M
  • 10GBASE-CU SFP+ Cable 3 Meter, passive SFP-H10GB-CU3M
  • 10GBASE-CU SFP+ Cable 5 Meter, passive SFP-H10GB-CU5M
  • 10GBASE-CU SFP+ Cable 7 Meter, passive SFP-H10GB-CU5M
  • 10GBASE-CU SFP+ Cable 10 Meter, passive SFP-H10GB-CU5M
  • 10GBASE-CU SFP+ Cable 7 Meter, active SFP-H10GB-ACU7M
  • 10GBASE-CU SFP+ Cable 10 Meter, active SFP-H10GB-ACU10M

Fiberstore SFP+ Cables

SFP+ fiber cable solution is suitable for longer distance communication, while 10G SFP+ cables solution is best when utilized in short lengths, typically 15m or less, which is sufficient to link server cards and switches. But at present, the fiber and copper cable transmission standard of 10G Ethernet have been launched. However, there is only the fiber standard without copper standard for the 40G Ethernet transmission now.

QSFP+ cables and SFP+ cables

From the perspective of the development of wiring, generally, the standard of copper cable is always behind the fiber standard and the application standard. Currently, the TIA and ISO have already established a working group to carry out the research work of the copper standard.

Actually, the QSFP+ cable is a choice for short transmission distance. Generally, QSFP+ cables are used to connect the ToR switches.

40GBASE QSFP+ Cable

Fiberstore QSFP+ Cables

QSFP+ cable and sfp+ direct attach cable are both suitable for the short transmission distance. The fiber can be considered for the long transmission distance. The standard distance of OM3 multi-mode fiber is 100m and the OM4 is 50m. The single-mode fiber will not encounter the problem of transmission distance. Fiberstore provides qsfp 4x10g aoc7m.

qsfp 4x10g aoc7m cable

Fiberstore qsfp 4x10g aoc7m cable

For the high-density, high-performance, longer distance and high-speed and other requirements, the MPO/MTP will be a more reasonable choice.

Fiberstore is a leading company in developing and manufacturing advanced optical network solutions to the fiber optic network, CWDM/DWDM system, and Data Center system. Fiberstore always aims accurate lead time and best service with high quality products to customers. Today, Fiberstore offer customers a broad range of data Center networking and communication solutions in following categories: GBIC, SFP, SFP+, XFP, XENPAK, X2, QSFP+ 40G AOC/ACC, 120G CXP AOC/ACC, Ethernet Converter and Fiber Optical Patchcord, Total fiber solution with CWDM, Mux/Demux, Repeater products.

Read More Related Article about DAC Cables:

Thursday, December 4, 2014

About Optical Transceivers

Optical transceivers are available in many different sizes and support many different cabling media and application speeds. You may hear words like, GBIC, mini-GBIC, SFP, SFP+, XFP and others. These support different rates and have different form factors.
A Gigabit Ethernet interface converter (GBIC) is a standard used for the kind of optical transceivers that can be plugged into switches and media converters. This method of plugging a transceiver into a GBIC module slot of a switch, as opposed to having a fixed interface, is also called hot-swappable since the transceiver is loaded into the switch while the switch is powered on. The GBIC standard is determined in the SFF Committee in document number SFF-8053. GBIC transceivers are offered in the -SX, -LX, and -ZX wavelengths and media ranges.
GBICs were created to provide both a small form factor and the flexibility to plug a number of transceiver types into a common electrical interface for Gigabit Ethernet speeds. When a variety of optical port types are needed, an IT administrator can buy GBICs as needed. This lowers the expense of the overall switch system and gives the IT administrator much more flexibility, since they have the choice of different transceiver types. However, if the switch is intended to mostly have one port type, then it will probably be cheaper and take up less space per port to use a switch with that port type built into it. The back of the device has an electrical adapter that plugs into a switch. The front of the transceiver has a SC connector interface for the two 850nm optical ports suitable for use over multimode fiber. One is used for transmitting and the other for receiving signals.
A smaller kind of the GBIC is called a mini-GBIC or SFP (small form factor pluggable) module. It serves the same purpose as the GBIC but has a smaller footprint. To allow for the smaller footprint, SFPs use LC connector interfaces. SFPs are also offered a 1000-Base-T reference to an RJ-45 interface.
The XENPAK transceiver was standardized in 2001 to support 10 Gigabit Ethernet over fiberoptic media and copper media. These come in a number of optical media types and wavelength ranges and also support copper media using a -CX4 interface. They're much bigger in dimension than GBICs and SFPs. After XENPAK was standardized, XPAK and X2 are created to supply a smaller footprint for 10 Gigabit Ethernet. These products share exactly the same electrical interface as XENPAK but are lighter. The XFP small form factor pluggable transceiver was initially developed in 2003 to supply a smaller form factor transceiver for 10Gbps applications than XENPAX, XPAK, and X2 transceivers.
XFP was created by the XFP Multi-Source Agreement Group prior to the development of the SFP+. XFPs supports 10 Gigabit Ethernet, SONET/SDH, and Fibre Channel applications. In keeping with their small form factor, much like SFPs, XFPs use an LC connector interface. XFPs are set up in a similar fashion to GBICs and SFPs, are available in many media type and wavelengths.
The SFP+ transceiver module was created later to assistance 10 Gigabit Ethernet speeds. It's about 30 percent smaller than an XFP, consumes less power, and is more cost-effective. Figure 1 shows various of transceivers.
optical transceivers
Figure 1. Different types of optical transceivers.
Want know more about optical transceiver? Fiberstore would be a good place to find out. They provide a full range of optical transceivers, such as SFP transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver, CWDM/DWDM transceiver, 40G QSFP+ & CFP, 3G-SDI video SFP, WDM Bi-Directional transceiver and PON transceiver. All our fiber transceivers are 100% compatible with major brands like Cisco, HP, Juniper, Nortel, Force10, D-link, 3Com. They are backed by a lifetime warranty, and you can buy with confidence. You also can tutorial about optical transceivers on they website.
Read More Related Article:

Tuesday, November 25, 2014

Optical Transceivers for FIs

Understanding FIs
A FI is the core component of a UCS solution. FIs are typically configured as highly available clustered pairs in production environments. It’s possible to run a single FI-based design as a proof of concept test deployment before actually implementing it in production. FIs provide the following two capabilities:
  1. Network connectivity to both LAN and SAN
  2. UCS infrastructure management through the embedded management software, UCSM, for both hardware and software management
FIs are available in two generations, namely Cisco UCS 6100 series and Cisco UCS 6200 series. The core functionality is the same in both generations; however, UCS 6200 series has a newer generation Application Specific Integrated Circuit (ASIC), higher throughput, and increased number of physical ports. Both generations can be upgraded to the latest UCSM software.
FIs provide converged ports. Depending on the physical Small Form Factor Pluggable (SFP) transceivers and FI software configuration, each port can be configured in different ways. Cisco 200 series FI ports can be configured as Ethernet ports, Fiber Channel over Ethernet (FCoE) ports, or Fiber Channel (FC) ports. On the other hand, 6100 series converged ports only support Ethernet and FCoE (they also support FC, but only in the expansion slot).
Cisco 6200 Series switches
In production, FIs are deployed in clustered pairs to provide high availability. Cisco-supported implementation requires that clustered FIs be identical. The only possibility for having different FIs in a cluster is during a cluster upgrade.
Exploring Connectivity Transceivers for FIs
A variety of SFP transceivers are available for The Cisco UCS 6200 series. These transceivers provide south-bound IOM connectivity and north-bound network and storage connectivity. They are based on industry-standard SFP+ specifications.
Transceivers can be selected depending on the technology, for example, Ethernet or FC, and also according to the distance requirements. For shorter distances between FIs, IOMs, and north-bound network switches, twinax cables with integrated SFP is an economical alternative as compared to fiber optic SFP.
The most commonly used transceivers include following:
  • Cisco SFP-10G-SR: This is a multimode optical fiber 10Gbps Ethernet SFP that can be used for distances up to 400 meters.
  • Cisco SFP-10G-LR: This is a single-mode optical fiber 10Gbps Ethernet SFP that can be used for distances up to 10 Km.
  • Cisco SFP-10G-TET: This is a low power consuming multimode fiber optic 10Gbps Ethernet SFP that can be used for distances up to 100 meters.
  • Cisco SFP-H10GB-CuxM: These are the twinax cables providing low cost 10Gbps Ethernet connectivity and are available in 1, 3, 5, 7 and 10 meter configurations.
  • Cisco SFP-H10GB-ACU10M: This is a 10-meter-long twinax cable providing 10Gbps Ethernet. At a length of 10 meters, this cable requires active transceivers at both ends.
  • Cisco GLC-T: 1000BASE-T SFP or SFP-compatible ports only,these are based on the SFP Multi Source Agreement (MSA) and compact RJ-45 connector assembly. For SFP-compatible ports only.
  • Cisco GLC-SX-MMD: These modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 550m transmission distance with MMF, for SFP-compatible ports only.
  • Cisco GLC-LH-SMD: These modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 10km transmission distance with SMF, for SFP-compatible ports only.
  • DS-SFP-FCxG-xW: These are multi-mode and single-mode fiber optic FC transceivers that are available at 2, 4, and 8Gbps transfer speeds.
1000Base-SX SFP Transceiver
Where to buy These Optical Transceivers
Fiberstore provide a full range of optical transceivers, such as SFP+ (SFP Plus) transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver, CWDM/DWDM transceiver, 40G QSFP+ & CFP, 3G-SDI video SFP, WDM Bi-Directional transceiver and PON transceiver. All our fiber transceivers are 100% compatible with major brands like Cisco, HP, Juniper, Nortel, Force10, D-link, 3Com. They are backed by a lifetime warranty, and you can buy with confidence. We also can customize optical transceivers to fit your specific requirements.
Article Source: Fiber Optic Transceiver

Tuesday, November 11, 2014

Cisco GLC-LH-SMD Compatible SFP For Your Network

With the development of the businesses, must also have the development of the networks.This is a cannot be avoidable side-effect of expansion and maturation in a company.
If you meet the point, you just begun to consider buying a larger property, or being planned in another workplace. You may return to the past ten years of the limitations of technology. Standard baseT100 Ethernet is fine for a small office, but it isn't suitable for handling heavier network use. Since your network expands, you may experience problems like:
  • Dropouts in your VoIP calls
  • Sluggish data retrieval speeds
  • Spotty WiFi coverage across a large areas
  • Difficulty leveraging Cloud-based applications
  • Or poor video streaming quality
If any of this sounds familiar, it might be time for you to start considering upgrading to gigabit Ethernet, which fast at 10 times the speed of traditional Ethernet.
Twisted Copper vs Fiber Optic Gigabit Ethernet
Another major consideration would be to determine whether or not you need to keep using copper-wire cabling or upgrade to fiber optic cabling in your offices. It's more costly, but fiber optic provides several benefits over copper, while still supplying the same gigabit speeds.
Cisco GLC-LH-SMD
Fiber optic cable supports far longer cable lengths than twisted copper. Copper can only run for around 100 meters, whereas fiber can go between 200 and 500 feet, or even more, without signal loss.
Fiber has gives off no radio interference, letting it to coexist easier in an office with a lot of wireless devices. Because of the lack of interference, fiber is also harder to hack into than copper. Just as with copper, a standard GLC-LH-SMD transceiver links fiber optic Ethernet with your existing equipment.
If you have looked ahead to the future, leaving copper might be a good choice. Fiber optics are increasing steadily in popularity among businesses that have taken over largetwisted-copper office buildings, created expansive complexes, or have an obligation to collaborate with remote offices immediately.
Using GLC-LH-SMD Transceiver To Connect Fiber Optic Network
The greatest benefit of Cisco SFP product is just entirely hot-swappable. No matter what the device is, it from servers to your switch to simple Ethernet cards: If it includes a SFP port on it, it could support many transceivers for different functions, through one standardized interface. In fact, that standardization shows that compatible modules can produce transceivers which are as good as official Cisco units. (cisco compatible sfp transceiver)
Cisco even has a compatible Matrix, that will help you select the best transceiver to do the job. So, if you think that fiber optic gigabit Ethernet is exactly what you require for your future business communications needs, the GLC-LH-SMD transceiver is truly easy to install and utilize. Simply plug it on your switch or any other device, plug in the brand new network cable, and it should recognize the network in a few moments.
There are a few different gigabit Ethernet standards to choose from. So you must research and think which is the most suits for your situation or for the future of your business. Just remember that you will need transceivers such as the GLC-LH-SMD to connect your current devices to the new network.
More about Brand Compatible SFP Modules:
Brand Compatible SFP For Optical Communications

Friday, November 7, 2014

Finisar Compatible 1000BASE SFP Transceivers

SFP (small form factor pluggable) transceivers are hot-swappable in industry-standard cages and connectors, and offer high-speed performance in a compact package. SFP is used for data rates up to 4 Gb/s and DWDM, including tunable versions. SFP and SFP+ (enhanced SFP) transceivers are interchangeable and can be used in the same cages as SFP transceivers. The electrical interface to the host board is a serial interface. Nowadays, the widely used Brand SFP and SFP+ transceiver like cisco, finisar and netgear. But some third-party SFP has also been widely used. Firstly, let us see the Specification of the original Finisar 1000Base SFP modules.
As we all know, Optical SFP modules are commonly available in four different categories: 850nm (SX), 1310nm (LX), 1550nm (ZX), and WDM, both DWDM and CWDM. Commercially available transceivers have a capability up to 4.25 Gbit/s for transmission applications, such as Finisar 1000Base SX SFP. Finisar FTLF8524P2xNy are 1000BASE SX SFP transceivers.
Product Specification 4.25 Gb/s RoHS Compliant Finisar's FTLF8524P2xNy Short-Wavelength SFP Transceiver.
PRODUCT FEATURES
  • Up to 4.25 Gb/s bi-directional data links
  • Hot-pluggable SFP footprint
  • Built-in digital diagnostic functions
  • 850nm Oxide VCSEL laser transmitter
  • Duplex LC connector
  • RoHS Compliant and Lead Free
  • Up to 500m on 50/125m MMF, 300m on 62.5/125m MMF
  • Metal enclosure, for lower EMI
  • Single 3.3V power supply
  • Extended operating temperature range: -20°C to 85°C
APPLICATIONS
  • Tri-Rate 1.063/2.125/4.25 Gb/s Fibre Channel
  • 1.25 Gb/s 1000Base Ethernet (Rate selectable version)
  • Wireless C OBSAI, CPRI
Finisar's FTLF8524P2xNy Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They are compatible with Fibre Channel FC-PI-2 Rev. 7.0. Rate Selectable versions are also compatible with Gigabit Ethernet as specified in IEEE Std 802.3. They are RoHS compliant and lead-free per Directive 2002/95/EC and Finisar Application Note AN-2038. Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA.
Finisar compatible SFP transceiver provided by Fiberstore
Key Features
  • Data-rate of 1.25Gbps/1.063Gbps operation
  • 850nm VCSEL laser and PIN photo detector for 550m transmission Hot-pluggable SFP footprint
  • duplex LC connector Interface
  • Class 1 FDA and IEC60825-1 Laser Safety Compliant
  • Compatible with SFP MSA
  • Compatible with SFF-8472
  • +3.3V single power supply
  • Average Output Power:-9.5~ -3dBm
  • Receiver Sensitivity:-17dBm
Applications
  • Fiber Channel Links
  • Gigabit Ethernet Links
  • Fast Ethernet Links
  • Other Optical Links
Compare Prices
FTLF8524P2xNy Finisar Compatible SFP Form Fiberstore
ftlf8524p2bnl $79.00 $ 8.40
ftlf8524p2bnv $59.42 $ 8.40
When you are planning to upgrade your network, it makes sense to "cut corners" when those corners really aren't even being cut at all. Third-party SFP optical transceivers usually cost far less than the "official" units, especially in the case of Cisco, but can provide the exact same performance you'd expect.
Finisar SFP transceivers provided by Fiberstore are third-party optical modules certified fully compatible with Finisar Switches & Routers. The Finisar SFP modules can be mixed and deployed with Finisar OEM SFP transceivers for seamless network performance and interoperability. Our Finisar SFP modules are the most cost-effective and 100% tested before delivered worldwide. Fiberstore provides a series of Finisar compatible SFP transceivers which can be equivalent to FTLF8519P2BNL, FTLF8524P2BNV, FTRJ8519P1BNL, FTLF8524P2BNL, FTRJ1319P1BTL, etc. Furthermore, Fiberstore also offers cost-effective SFP transceiver compatible with equipment such as Cisco, HP, Juniper, NETGEAR, Finisar (Finisar SFP), Dell, etc. All the SFP transceiver modules are 100% tested before shipping and have a lifetime warranty.

Thursday, November 6, 2014

Brand Compatible SFP For Optical Communications

SFP Transceivers for Telecommunications
The SFP is the more compact optical transceiver used in optical communications. It interfaces a network equipment mother board to a fiber optic or unshielded twisted pair networking cable.
This is probably the most diffused transceiver format available with a variety of different transmitter and receiver types, allowing users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber (e.g., multimode fiber or single-mode fiber).
A drawing of a SFP transceiver is presented in Figure 1, where the particular connector for the input and output fibers that, with different dimensions, is present in all the transceivers is evidenced.
A drawing of a SFP transceiver
Figure 1. A drawing of a SFP transceiver
Optical SFP modules are commonly available in four different categories: 850nm (SX), 1310nm (LX), 1550nm (ZX), and WDM, both DWDM and CWDM. SFP transceivers are also available with a copper cable interface, allowing a host device designed primarily for optical fiber communications to also communicate over unshielded twisted pair networking cable.
Commercially available transceivers have a capability up to 2.5 Gbit/s for transmission applications; moreover, aversion of the standard with a bit rate of 10Gbit/s exists, but it can be used only to connect nearby equipment, and is very useful to spare space and power consumption as interface in the client cards of line equipments.
Modern optical SFP transceivers support digital optical monitoring functions according to the industry standard SFF-8472 MSA. This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage. (More infomations about SFP transceiver)
SFP transceivers are designed to support SONET, Gigabit Ethernet, Fiber Channel, and other communications standards. A 1000 BASE SX SFP shown in Figure 2.
1000BASE-SX SFP 850nm
Figure 2. 1000BASE-SX SFP 850nm
One common query we hear is actually one must use a Cisco SFP with Cisco hardware? The answer is "not really" although that is not the answer Cisco wants to give. Perhaps you have used third-party compatible SFPs for your networking, and the price gap is obvious.
Brand's SFPs And Third-Party Compatible SFPs
Brand's SFPs such as Cisco, Cisco wants their customers buying only Cisco hardware, which is to say the least more expensive than anyone else on the market. They conduct their own optical transceivers, and try very hard to convince buyers that only official Cisco hardware will work.
Actually, a few of their hardware such as the Catalyst line will not even access third-party SFPs without running undocumented commands first!
That said, it's simple enough to figure around. Plus, either way, the plain truth is that one optical transceiver from a reputable vendor is just as good as any other. It's a totally standardized technology, like spark plugs, and one brand's SFP is going to work fine with any other brand's hardware.
And, like with spark plugs, few people beyond enthusiasts really care about the brand as long as the SFP works once installed.
When you are intending to upgrade your network, it makes sense to "cut corners" when those corners really aren't even being cut at all. Third-party SFP optical transceivers usually cost far less than the "official" units, especially in the case of Cisco, but could supply the exact same performance you'd expect.
To get more brand compatible optical SFP transceivers (10GBASE-ER SFP, 10GBASE-LR SFP, 10GBASE-SR SFP, etc.), or other fiber optics equipment and any other questions you might have about your future networking needs, please don't hesitate to contact Fiberstore for everything you need to know!

Monday, November 3, 2014

Products Used In the Physical Layer

The Physical Layer, as the Layer 1 of ISO OSI Systems communications model where the mechanical and electrical specifications of physical network interface are defined. The physical network interface is considered passive network elements because they do not generate or alter data units traveling across the network. Network elements defined by the Physical Layer include (among others): Network transport media (cables) and connectors.
Network Media Types
Network media types used in Data Center today are copper and fiber optic cables.
The following copper cables are available: Cat 1 to Cat 5, Cat 5E, Cat 6, Cat 6a, Cat7 and Twinax cables. Twinax copper cable with two conductors in a coaxial cable, which is slowly wrapped around each other; originally designed to replace RS-232 and has been redesigned for high-speed computer applications under 10meters.
Fiber optic cable utilize light for data transmission, rather than electrical current on copper cables, Fiber optic cables have many advantages, for example, the are many times lighter and have substantially reduced bulk, no pins, a smaller and more reliable connector reduced loss and distortion, and are free from signal skew or the effects of electro-magnetic interference.
Cable connector types
Copper cable connectors. Currently, there are two copper connector standards are in use, RJ-45 and MRJ-21.
RJ-45: The most popular Ethernet connector in use nowadays. MRJ-21: Used in Brocade’s netlron MLX product family, provides 1GbE connectivity of up to 6 ports by the RJ-45 patch panel or RJ-45 connectors. It is a high-density, high-speed copper cable.
Optical cable connectors. Optical cable connector structure can be divided into: FC,SC, ST, LC, D4, DIN, MU, the MTP,MPO and so on in various forms.
Transceivers are either copper or optical
Copper transceivers, copper medium usually does not require any transceivers, as they are a part of the interface module. However, few of Brocade’s products use a copper SFP with an RJ-45 female connector for 1 GbE connectivity over copper medium, or XFP copper transceiver for 10GbE connectivity over CX4 copper. Figure 1 is a 1000BASE-T SFP Optical Transceiver.
copper sfp
Figure 1. Copper SFP Optical Transceiver
  • XFP 10GBASE-CX4: Uses a CX4 connector to provide a connection to up to 15 meters over CX4 grade copper cable.
  • SFP 1000BASE-TX: Uses a RJ-45 connector to provide a connection to up to 100meters over Cat5e or higher copper cable.
Optical transceivers
The following optical transceivers are available: (Figure 2 is a 10G CWDM SFP 10km Single-Mode Optical Transceiver)

Figure 2. 10G CWDM SFP+ Optical Transceiver
  • SFP: Small form-factor Pluggable. Supports 100Mbps and 1Gbps Ethernet.
  • SFP+: Small Form-factor Pluggable Plus. Looks are physically identical to the SFP port but support higher speeds. Supports 10Gbps Ethernet. Might also support SFP transceivers.
  • XFP: 10 Gigabit Small Form-factor Pluggable. Supports 10Gbps Ethernet.
  • XENPAK: XENPAK transceiver is a hot-swappable I/O devices that plug into 10-Gigabit Ethernet module ports. The XENPAK transceiver is available in either optical or copper interfaces. It is used in typical router line card applications, storage, IP network and LAN.
  • X2: X2 transceiver is a standardized form factor for 10 Gb/s fiber optic transceivers that is used for data transfer rates from 10.3 Gb/s to 10.5 Gb/s. X2 transceiver is used in datacom optical links only (not telecom), and they are smaller than old generation XENPAK transceiver.
  • GBIC) Transceiver: A gigabit interface converter (GBIC) transceiver can send and receive data, which is to digitally convert media between a gigabit Ethernet network and a separate fiber optic based network.
SFP+ Twinax cables are copper cables with two 10G SFP+ transceivers attached on either end. They are also known as Direct Attach Cables (DAC). Using SFP+ Twinax cable is significantly cheaper than connecting devices using two 10Gbps fiber optic transceivers over fiber cable. There are two types of SFP+ Twinax cables: active and passive. SFP+ Twinax cable provided by Fiberstore.com is available in lengths of 1m, 2m, 3m, 5m.
In addition, all those copper or optical products used in the Physical layer can be found in Fiberstore.com.

Thursday, October 30, 2014

Purchase Fiber Adapter Panels

Because the laser light is dangerous, and the ends of every fiber optic cable(have a small core) must be encased in some kind of enclosure. So, the enclosure not only protects humans from laser light but also protects the fiber from damage. Fiber wall plates and fiber patch panels are two main types of fiber enclosures. Previously articles have been discussed how to use a fiber optic patch panel. Now we'll learn about under what situation it can be used and where to buy.
As previously mentioned, fiber optic cables have a very small core that can be easily damaged if not protected properly. Also, to be consistent with the minimum size of a fiber optic loop and not violate the critical angle, we need to have a way to keep excess fiber optic patch cables, as well as terminated building fiber, neat and protected from damage. Fiber optic wall plates and patch panels allow the cable installer to protect the delicate fiber cable from damage, while still making it useable for the network administrator.
A common device that is used as a fiber optic cable enclosure is called a Lightguide Interconnection Unit(LIU), as showed in Figure 1. The LIU provides a location to terminate individual fiber optic strands into a patch panel, which will be discussed in the next article. A LIU is generally made of galvanized steel that is then powder-coated to provide durability. Most major LIU manufacturers make their devices 19 inches wide so they can be installed in a normal communications rack, If the LIU is to be located in an environment where there is a risk of moisture or corrosives, the LIU can be sealed with gaskets to make it virtually waterproof. Most LIUs have swing out trays in the front and the back to provide easy access to the patch panel to ensure that all loops are a minimum diameter, so the cable will not get damaged and maximum light can traverse the cable.
LIU500x500
Figure 1. Lightguide Interconnection Unit(LIU)
Patch panels for fiber optic cables also called fiber patch panels, which are usually installed into the LIU. Because the core and cladding of two fiber optic cables that are to be joined together must match perfectly, the fiber patch panel must be manufactured to exact specifications and some standard type connector must be used to ensure a good fit. (fiber option connectors are discussed in the next section.) Another fiber patch panel issue deals with attenuation. Remember from the previous article discussed that when you splice or join a fiber optic cable, you can introduce additional light loss or attenuation. The same holds true for the fiber optic patch panel. The connectors on the patch panel should identify the total loss at various wavelengths, and these losses should be added to any other cable loss on that particular cable to ensure compliance with standard and good operation of the fiber optic cable. Figure 2 is a LC adapter panels (6 port fiber patch panel) .
lc_fiber_optic_adapter_panel_6_duplex
Figure 2. LC fiber optic adapter panels
Fiber Adapter Panel (FAP) is used for patching a fiber cable to the enclosures like fiber wall cabinets, rack mounts fiber cabinets or rack mount fiber shelf. It allows you to make quick and easy fiber patch panel connections as they can snap into the fiber optic enclosures easily. Fiber adapter panels are designed to fit fiber optic blank patch panels, rack and wall mount enclosures. To purchase this kind of fiber adapter panels, please visit Fiberstore’s website (www.fiberstore.com).
Learn more about fiber patch panels:

Tuesday, October 28, 2014

The Importance of Fiber Patch Panels

Fiber patch panels are a key and frequently overlooked component of any fiber optic network. Essentially, fiber patch panel serves as a network's central location for monitoring and connecting circuits. Frequently, they serve to connect and disconnect fiber optics equipment. Picture a panel as a traffic signal, it's the traffic signal that monitors and controls the flow of traffic through its intersection. A fiber patch panel is an absolutely critical component for uptime, performance, speed and other important characteristics.
Fiber Adapter Panel
Importance of fiber patch panels
Available in different sizes and configurations, Fiber patch panel can be tailored to match your fiber optic network's unique needs. But all fiber patch panel is similar in one regard is that they're important for any fiber optic network's ability to configure new equipment and also phase out old components. Fiber patch panels are versatile enough to manage fiber optic cable networks. More and more people recognize the value of fiber patch panels. Lots of network engineers believe that fiber's gaining speed and ability to easily upgrade existing networks. One thing's for certain is that no network can run well without a properly configured fiber patch panels.
Also referred to as Jack fields and patch bays, fiber patch panels consist of ports to quickly connect fiber optic cables. Fiber optic patch cords are employed to data streams entering and exiting the fiber patch panel. While no physical limit exists for a fiber patch panel's size, most have anywhere from around 6 to 96 ports. For larger networks, hundreds of ports can be utilized. That is another element in a patch panel's importance is that as your fiber optic network grows, ports can be in addition to accommodate ever-expanding demand. Fiber cable management is another important aspect for any properly configured network. Fiber patch panels also assist electricians and network engineers by offering convenient, flexible routing options. Because a patch panel has numerous ports in close proximity, fiber optic cables can be routed, labeled and monitored easily and efficiently.
Where to Buy
As the most important part of fiber patch panels, the importance of fiber adapter panels cans be imagined. Now that you've already know a lot about fiber patch panels, you can see the importance of having fiber adapter panels in place. Fiberstore offers an impressive assortment of patch panels to help your network to achieve optimum performance. Fiber optical patch panel supports the distribution, termination and storage of fiber optic cables. Fiberstore supplies various of brand fiber adapter panels including Black Box, Wirewerks, Mr-technologies, Corning, Leviton, Panduit Opticom adapter panel and more. By the same time providing all industry-standard coupler interface including LC, SC, ST, FC, MT-RJ, MPO and etc.What's more, we also can provide wall mounted type fiber patch panels. Additional information, you could view our website www.fiberstore.com.
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Introduction of Fiber Adapter Panels

As we all know, fiber optic adapter is a device used to connect two fiber optic connectors in the fiber optic cabling system. Due to the variety of fiber connectors, there are also a variety of fiber optic adapters (Read more about adapters here!). Why we talk about fiber optic adapter in the beginning of this paper? OK, because today’s main topic is related to the fiber optic adapters – the fiber adapter panels (FAPs).
What is Fiber Adapter Panel
Fiber adapter panel is a panel used for patching fiber cable to the termination enclosure, such as fiber wall cabinets, rack mount fiber cabinets or rack mount fiber shelf. Due to its convenient design, it can easily and quickly snap into the front of fiber optic patch panels or enclosure. It is a good option for easy network deployment or moves, adds, and changes.
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Types of Fiber Adapter Panel
According to the connection types, such as LC, SC, ST, FC, MT-RJ, MPO etc., there are many kinds of fiber adapter panels. In addition, unloaded and blanks design are also used in some applications. Certainly, you can choose simplex or duplex type according to your demands. Moreover, number of fiber and the pack are another options designed in the fiber adapter panel. Nowadays, the well known brands of fiber adapter panel is Panduit, Blackbox, Corining, Wirewerks etc.
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Application
Fiber adapter panel provides a complete system solution for connectivity, such as horizontal and vertical MPO adapters, LC, Keyed LC, SC, ST, FC, MT-RJ, E-2000 and fiber optic adapter modules, copper jack modules and audio/video modules. With its specialized design, it is best suited for installing in rack and wall mount enclosures and fiber adapter patch panels. In addition, it leaves some futher application spaces for the customer. For example, multimedia modular panels allow customization for installation requiring integration of fiber optic and copper cables. Blank fiber adapter panels reserve panel space for future use.
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Where To Buy
In order to make network deployment and Fiber Adapter Patch Panels moves, adds, and changes more easy, fiber adapter panel is more and more widely used with people in the network solution. Where to buy highly quality fiber adapter patch panel with a low cost may be a concerned question of many users. Fiberstore offers a low cost option of fiber adapter panel for you. We have a variety of customizable options which are available to fit all your applications. Additionally, our compatible fiber adapter panel are fully compatible with the major brands, such as Black Box, Wirewerks, Mr-technologies, Corning, Leviton, Panduit which supply a good and low cost product choice for you.
Related Articles: http://www.fiber-optic-transceiver-module.com/introduction-of-fiber-adapter-panelsfaps.html

Monday, October 27, 2014

The Conventional Fiber Adapter Plates Need To Improve

Optical fiber has been used as a medium for telecommunication as well as networking because it's flexible enough and could be bundled as cables. Optical fiber has been especially advantageous for long-distance communications because light propagates through the fiber with little attenuation compared to electrical signals carried by conventional wire cables. Over short distances, for instance networking within a building, optical fiber interconnect cables save space in cable ducts because a single fiber can carry more data than a single electrical cable.
Interconnect cables are generally used as intra-equipment jumpers or patch cords. For example, some typical applications include patching active electronics to nearby patch panels, cable cross-connection on distribution frames, and connecting work area outlets to terminal equipment. Fiber optic patch cords comprise a length of cable with a plug or connector on one, or both ends, and can also be referred to as connectorized fiber optic cables. A patch panel typically comprises a connecting hardware system (e.g., racks, adapter plates, arrays of adapters, etc.) that facilitates cable termination and cabling administration via the use and administration of standard-conforming adapters. The following figure is a 12 port fiber patch panel, which is a component of fiber cable installation
Benefit From Fiber Patch Panels
Various fiber optic cable connector and adapter designs can be used to meet the requirements of corresponding Fiber Optic Connector Intermateability Standard (FOCIS) documents. Note that the term adapter, when used in reference with optical fiber, has been defined by the optical fiber industry and standards organizations as a mechanical termination device designed to align and join two like optical connectors.
In some designs, fiber adapter plates provide the means to support and align the interconnection of connectorized fiber optic cables in structured voice or data cabling networks. Conventionally, fiber adapter plates use a metal or plastic plate or support panel having a number of cutouts to accept discrete fiber optic adapters which are typically linked to the adapter plate by screws or clips. Therefore, these adapter plates use a removable attaching mechanism (e.g., screws, clips, latches, etc.) to attach the adapter plate to an enclosure or patch panel.
However, such conventional adapter plates suffer from drawbacks due to the assembly of so many discrete parts. For example, alignment of the connecting optical fibers is crucial to minimize loss across the adapter. While internal fiber optical interface details (e.g., alignment, cable separation, etc.) are specified by rigid standards, the adapter to adapter plate connection is more springy. As a result, excessive tolerances can result in additional mechanical play between the adapter and the adapter plate which can, sometimes, to enable excessive stresses and bend radii of the connecting fiber optic cables.
As a further example, such conventional assemblies by their nature require costly assembly steps. As a cost saving measure, some of the assembly steps can be passed on to the end user. However, this can lead to increasing set up time, having costs of its own, and can result in end user frustration. Furthermore, conventional adapter plate panels are often unlabeled or stamped with labels that are hard for the end user to ascertain, specially when the adapter plate is fully outfitted with adapters and cabling.
It is thus desired to provide fiber adapter plates that improve upon these and other deficiencies of conventional fiber adapter plates.
Fiber Adapter Panels Privided By Fiberstore, loaded with LC, SC, ST, FC, MT-RJ, MPO and unloaded blanks. With products compatible for trusted brands including Black Box, Wirewerks, Mr-technologies, Corning, Leviton, Panduit Opticom adapter pannel and more.

Wednesday, October 22, 2014

Fiber Adapter Panels Privided By Fiberstore

When surmounting trouble rises, a fiber optic technician must choose the most suitable patch panel for a specific situation. He has to understand that when it comes to easy installation, proper termination and long-term maintenance, its not all patch panel is made equally.

Optical fiber is robust and thus deserves some kind of special treatment. For example, if your horizontal copper cable is broken, one user is about be affected. If your backbone fiber goes down, it will grab a lot of users down by using it. For this reason using fully enclosed connecting hardware for optical fiber is essential. This is where the technician must choose between using wall-mounted or rack-mounted hardware. The optical fiber density required will likely influence the technicians choice between the wall-mounted and rack-mounted connectivity. Many technicians will choose to use fiber patch cables. However, how to handle the fiber patch cables?

What is Fiber Adapter Panel?

Fiber Adapter Panel (FAP) is utilized for patching the fiber cable to the enclosures like fiber wall cabinets, rack mounts fiber cabinets or rack mount fiber shelf. It enables you to make fast and simple fiber patch panel connections as they can snap into the fiber optic enclosures easily.

OM3/4 10G Duplex Plastic Adapter Plate

Fiber Adapter Panel provided by Fiberstore:

  • Loaded with LC, SC, ST, FC, MT-RJ, MPO and unloaded blanks
  • Simplex and duplex (6-pack or 8-pack)
  • Metal or Cerramic sleeves
  • Ideal for 6-fibers, 8-fibers, 12-fibers or 24-fibers, 48-fiber, 72-fibers and 96-fibers applications
  • Snap quickly into the front of our compatible fiber optic enclosures

Fiber adapter panels contain TIA/EIA-604 FOCIS compliant or compatible simplex or duplex fiber optic adapters and meet or exceed TIA/EIA-568-C.3 requirements. Fiber adapter panels include horizontal and vertical MPO adapters, LC, keyed LC, SC, ST, FC, MT-RJ or E-2000 fiber optic adapters. Fiber optic adapters include phosphor bronze or zirconia ceramic split sleeves to fit specific network requirements. LC and SC adapter housing colors follow the TIA/EIA-568-C.3 suggested color identification scheme.

Multimedia modular panels allow customization of installation for applications requiring integration of fiber optic and copper cables. Blank fiber adapter panels reserve fiber adapter panel space for future use. All fiber adapter panels snap quickly into the front of fiber optic patch panels and enclosures for easy network deployment or moves, adds, and changes.

Fiberstore's fiber adapter panel with metal or plastic is meant to be used for patching the fiber cable to the termination enclosure of your choice, such as fiber wall cabinets, rackmount fiber cabinets or rackmount fiber shelf (LC patch panel). The adapter panels are easily snapped into the enclosures with snap lock mounting fixtures. They have a various customizable options available to fit whatever application you require. With products compatible for trusted brands including Black Box, Wirewerks, Mr-technologies, Corning, Leviton, Panduit Opticom adapter panel and more.

Fiberstore fiber optic systems to meet today's requirements and provide a migration path for tomorrow's applications. These advanced fiber optic systems include fiber optic cable, connectors, adapter modules, adapter panels, cassettes, patch cords, cable assemblies, cable distribution products and accessories for both singlemode and multimode applications. Together, these components provide complete solutions for today's high data rate Fibre Channel and Ethernet applications, and support future readiness for 40 Gb/s and 100 Gb/s data rates, maximizing physical infrastructure performance, modularity, and scalability.