Questions about the Transceiver Support of HP 3Com Rebadged Switches

There are always some problems needed to be solved due to rebadged. Here are two questions about the transceiver support of HP 3Com rebadged switches. Thanks to the people who gave out the answers.

Question 1: I am a little confused regarding 10-GbE SFP+ Transceiver Support on older 3Com/HP 4800G Switch Series. HP lists several X130 SFP+ Transceivers as compliant with the 3Com/HP 4800G Switch line. According to all information I found until now, SFP+ is NOT backward compatible to SFP. The original, Comware-based, 4800G Switch Series has definitely no SFP+ ports, only SFP. HP may have changed this in more recent model revision like the HP 5500 EI Switch Series. But the original 4800G Switch Series has clearly no SFP+. How can HP list therefore here these HP X130 SFP+ Transceivers as compliant to the 3Com 4800G Switch Series?

The 3Com 4800G and HP 5500-EI switchs are very similar, only difference seems to be support for PoE+ and the much more powerful power supply (up to 740W) at the HP 5500-EI. Interestingly, this (JD368B) HP 5500/5120, 2-port, 10GbE SFP+ Module is NOT listed at the HP 4800G accessories product page. It is listed only at HP 5500-EI accessories page.

BUT, if you click there on it, a window opens, and you will see that the 4800G (and others) will be yet listed! Very confusing and incomprehensible, why it is listed here as compatible but not at the HP 4800G accessories product page? It's probably listed because you can add a 10GbE SFP+ module to the back of the 4800G. I'm trying to find out who the Product Manager is to confirm. I'll also take a look at one of mine in the lab.

According to the HP Accessory list, HP 4500G Switch Series Accessories the only options available for the 4500 and 4800 switches are 10Gb XFP and LCM modules and one 1GbE SFP transceiver (such as HP transceiver JD119B, JD089B, etc.). I was in touch with the product manager this week and there is no SFP+ version available. He also told me that the 4800G and its options have been end of life for years but we still continue to support them. The page could have been written better to make the accessory list more clear.

Tips: 3Com 4800G is the same as HP A5500-EI. It's also mentioned within the release notes. Also you can try it out yourself. Type "brand h3c" on the switch and reboot. After that you'll have an H3C S5500-EI switch. If you want to stack an 3Com 4800G switch with an HP E4800G switch you have to "brand hp" the 3Com devices. That's also mentioned within the release notes. Talking about 10Gb fiber. If you want to use SFP+ optics, you have to install the SFP+ modules first. I use those for my 4800G switches. Before HP A5500EI family, there were another 2 product families, i.e 3Com 4800G and H3C S5500EI, shipped to market. All of these three product families have same hardware and software specification except brand.

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Question 2: I have two HP ProCurve JE005A V1910 switches installed in two offices. These two office are in the same building 70 meters apart, but the work enviroment has heavy Electro-Magnetic Interference (EMI). So I want to use a fiber connection to link them up rather than a stand Ethernet cable. I have done some research and found that the SX module are more than sufficient. What I can not understand is what is the difference between the J4858C and JD118B HP SFP modules.

So what is the difference between J4858C and JD118B for the JE005A? The J4858C is what was the traditional ProCurve branded part, the HP JD118B the former 3Com one. Some of the switches only work with branded SFPs: generally you can use a ProCurve part in a 3Com switch but not always the other way round. Unless you are keeping a common pool of spares or similar, it doesn't matter which you use.

As HP JE005A V1910 switch is a new prodcut (as in just bought, a V1910 is one of the rebadged 3Com models), would the J4858C be the way to go for best compatability? To create a fiber link, do I need both adapters on both switches or just one each? The answer is that one (at each end) of either would be fine.

These are small problems but a lot of people are influenced. As there are much more other problems of brands rebadged among HP, 3Com and H3C etc., and considering about the expensive SFP transceivers, more and more users begin to choose generic compatible transceiver modules which can really replace the position of original ones.

Article Source: Transceiver Support for HP 3Com Rebadged Switches

10GbE Optical Standards and Fiberstore SFP+ Modules

SFP+ is an enhanced version of the SFP that supports data rates up to 10 Gbit/s. SFP+ supports 8 Gbit/s Fiber Channel, 10 Gigabit Ethernet and Optical Transport Network Standard OTU2. It is a popular industry format supported by many network component vendors. In comparison to earlier XENPAK or XFP module, but SFP+ module is more compact size and measurement, leave more circuitry to be implemented on the host board instead of inside the module. Consideration needs to be given to whether the module is linear or limiting. There have been numerous different optics types and SFP+ modules introduced since 10 gigabit Ethernet have been launched years ago, but this article will introduce five of them:

10GBase-SR and 10GBase-SR Module

10GBase-SR is the original multimode optics specification, and it is still one of the most frequently used. As it uses a single, cost effective solid state laser assembly, it's also the most cost effective of the optical modules designed for a 10GbE platform. However, 10GBase-SR is highly sensitive to fiber type.

The 10GBASE-SR Module (such as Cisco SFP-10G-SR, Fiberstore 10GBASE SR SFP Module) supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI) grade multimode fiber (MMF). Using 2000MHz km MMF (OM3), up to 300m link lengths is possible. Using 4700MHz km MMF (OM4), up to 400m link lengths is possible.

10GBase-LR and 10GBase-LR Module

10GBase-LR can reach up to 10km over single-mode fiber. There is no minimum distance for LR, either, therefore it is suitable for short connections over single mode fiber too.

Fiberstore provide 10GBASE-LR SFP and Cisco SFP-10G-LR Module supports a link length of 10 kilometers on standard single-mode fiber (SMF, G.652).

10GBase-LRM and 10GBase-LRM Module

The replacement for LX4, 10GBase-LRM can reach up to 220m over standard multimode fiber, but without the complexity of the LX4 optics. Instead, a single laser operating at 1310nm is utilized. This allows LRM optics to be packaged in XFP and SFP+ form factors.

Fiberstore 10GBASE-LRM Module supports link lengths of 220m on standard Fiber Distributed Data Interface (FDDI) grade multimode fiber (MMF). To ensure that specifications are met over FDDI-grade, OM1 and OM2 fibers, the transmitter should be coupled through a mode conditioning patch cord. No mode conditioning patch cord is required for applications over OM3 or OM4.

10GBase-ER and 10GBase-ER Module

10GBase-ER can reach up to 40km over single-mode fiber. Due to the laser power, attenuation is required for links less than 20km long.

The Fiberstore 10GBASE-ER Module supports a link length of up to 40 kilometers on standard single-mode fiber (SMF, G.652).

10GBase-ZR and 10GBase-ZR Module

ZR optics can reach up to 80km over single-mode fiber. Due to the extremely high transfer energy, significant attenuation is required for shorter links. Use of ZR optics should be preceded with an optical power test of the fiber span in question to ensure a problem-free deployment. Interestingly, 10GBase-ZR is actually not an IEEE standard, though most vendors provide a ZR option.

The SFP-10G-ZR provided by Fiberstore is a multirate 10GBASE-ZR, 10GBASE-ZW and OTU2/OTU2e module. It supports link lengths of up to about 80 kilometers on standard single-mode fiber (SMF, G.652). This interface is not specified as part of the 10 Gigabit Ethernet standard and is instead built according to Cisco specifications.

As one of the most confusing aspects of choosing and deploying 10Gig fiber switches, I hope that this information helps. If you have any further questions about fiber optics, please contact us with no doubt.

More about Fiberstore Modules and Transceivers:

• Optical Transceivers for FIs
• Cisco GLC-T Copper SFP Manufacturer

Learn Some about CWDM SFP Transceivers

As we know, CWDM SFP (CWDM) is on the SFP transceivers or socket switch or router port, it is a kind of technology of hybrid protocols and data rate, allow the multi-channel, combination, and through the optical fiber cable transmission.

CWDM SFP use SFP interfaces to connect devices, at the same time, double LC/PC type optical fiber connector software, optical network connection.CWDM SFP for port connected to the optical fiber network, the typical CWDM SFP as cisco can support gigabit Ethernet and fiber channel at the same time. It is compatible SFP with fast Ethernet, SONET OC – 3 and OC – 12, and STM and SDH STM – 1-4 standard.

The purpose of CWDM SFP transceivers basic characteristics are hot pluggable and double LC interface, and compliant with IEC60825-. The transmitter center wavelength ranges from 1270nm to 1610nm and the receiver PIN or APD is single +3.3V power supply, PECL data interface; Operating temperature range s from -5 to + 70 degrees;

CWDM SFP transceivers consists of three parts: an uncooled CWDM DFB laser, PIN photodiode integrates a trans resistance preamplifier (TIA) and single-chip microcomputer control unit. This optical transceiver integration in a module to send and receive channel. In the sender, serial data stream is transmitted to the the laser driver. Laser driver bias and modulation of refrigeration directly modulated laser (DML), according to the LC connector industry standard, make the data transmission of single-mode fiber. At the receiving end, the data flow from a PIN or restore the avalanche photodetector (APD), transmitted to trans resistance amplifiers, rear and then passed to the amplifier.The module has to be hot-swappable SFI standards for electrical interfaces. This integrated optical transceiver to provide signal transmission rate from 100 Mbps to 3.1 Gbps of high-speed serial link and the module in line with the small pluggable (SFP) multi-source agreement (MSA).

We know that typical CWDM SFP transceivers including CWDM-SFP-1470, CWDM-SFP-1490, CWDM-SFP-1510, CWDM-SFP-1530, CWDM-SFP-1550, CWDM-SFP-1570, CWDM-SFP-1590, CWDM-SFP-1610. Cisco CWDM SFP is a series of single-mode transceiver covers from 1470nm to 1610 nm wavelength applications, they are different colors to identify them, these CWDM SFP to gigabit Ethernet and 1/2 GBPS fiber channel applications. And another brand is Juniper CWDM SFP, it includis SFP-1GE-LH-CWDM-1270, SFP-1GE-LH-CWDM-1290, SFP-1GE-LH-CWDM-1310, SFP-1GE-LH-CWDM-1330, SFP-1GE-LH-CWDM-1350. The Cisco SFP transceiver and Juniper CWDM SFP transceivers are with excellent quality. Casting CWDM SFP transceivers work on the 80 km, with different wavelengths from 1470 nm to 1610 nm. It is fully compatible with and in its intended functions casting router or switch, and complete the MSA compatible.

Cisco’s may possibly aim at either Gigabit Ethernet or Fiber Channel. Fiberstore supply original CWDM SFP, along with other CWDM SFP transceivers, impressive company like cisco, HP, huawei, juniper networks and etc. Fiberstore, as a famous optical fiber manufacturers, provide many other kinds of fiber optic transceivers like SFP transceivers, GBIC transceiver, CWDM SFP transceivers, DWDM SFP transceivers, SGMII SFP transceivers, SFP+ transceivers, XFP transceiver, X2 transceiver, Xenpak transceiver, and so on. In addition, Fiberstore is making with 30% of the price including all SFP transceivers. So if you want to know more and take action for it immediately. The website is http://www.fiberstore.com/

Article Source: http://www.fiber-optic-transceiver-module.com/

Talk About Some Details of Cisco 1000base SFP Transceiver

Cisco, as we know, one of the top 500 companies in the world, mainly supplies network and communications products and service. Its SFP transceiver is widely used with their routers and switches. Cisco SFP is an upgraded version fiber optic transceiver from the traditional one, which is smaller and more flexibility. Cisco SFPs include a wide range of the transceivers due to different working wavelengths and distances. Now I will introduce you something about the Cisco 1000Base SFP transceivers, such as GLC-SX-MM, GLC-LH-SM and GLC-ZX-SM.

Cisco SFP GLC-SX-MM

Cisco GLC-SX-MM is compliant to 1000Base SX standard for Gigabit Ethernet, used for short wavelength applications. GLC-SX-MM works with 850nm multimode fiber, its max working distance is about 1640 feet and typical data rate is 1Gbps. It uses LC duplex fiber optic connector interface.

The GLC-SX-MM transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. The GLC SX MM transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. By the way, I want to say something about Cisco GLC-SX-MMD, The transceiver has the same content with GLC-SX-MM

Cisco SFP GLC-LH-SM

Cisco GLC-LH-SM SFP is compliant to 1000Base-LX/LH standard for Gigabit Ethernet, used for long wavelength and long haul applications. GLC-LH-SM is working at 1300nm wavelength, its max working distance can reach 10km and data transfer rate at 1Gbps. GLC-LH-SM could used with both multimode optical fiber and single mode optical fiber, it is small size transceiver with LC interface, easy to use, no need further configuration.

The GLC-LH-SM transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. It fully complies with the Multi-sourcing agreement (MSA) which enables it to work in all MSA compliant platforms. The GLC-LH-SM must be operated within the specified temperature(-40°C to +85°C) and voltage limits.

Cisco SFP GLC-ZX-SM

Cisco GLC-ZX-SM SFP transceiver is compliant to 1000Base-ZX standard for Gigabit Ethernet. It works with 1550nm single mode fiber for extended working distance from 70km to 100km, with duplex LC interface and data transfer rate at 1Gbps. The GLC-ZX-SM is carrier-class quality and can be fully trusted for your most demanding LAN/WAN applications, voice projects, or network deployments.

The GLC-ZX-SM transceiver consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. The GLC-ZX-SM transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. It fully complies with the multi-sourcing agreement (MSA) which enables it to work in all MSA compliant platforms.

Well, Cisco GLC-SX-MM, GLC-LH-SM and GLC-ZX-SM these Cisco SFP transceiver have in common is that their applications all include Gigabit Ethernet, Gigabit Ethernet, Fiber Channel, Fiber Channel,Switched backplane applications, Router/Server interface,and other optical transmission systems.

Fiberstore offers many kinds of Cisco SFP fiber optical transceivers, which includes Cisco CWDM or DWDM SFP,Cisco Bidi SFP and many other Compatible SFP transceivers. The Cisco 1000Base SFP transceivers supplied by Fiberstore are economic price but high quality. Their Cisco SFP modules fully tested to ensure the compatibility with equipment from Cisco and other companies. More, they come with good price and lifetime advance replacement warranty. The same time there is a good news it that Fiberstore is making with 30% discount of the price and if you want to know more, welcome to visit our online store.

Article Source: http://www.fiberopticshare.com/

Twisted-pair and Direct-Attach Twinax Cables Will Become a Trend

Now fiber optic transceivers are commercially available for almost all international and industrial standards, including Ethernet, Fast Ethernet, Gigabit Ethernet, 10Gbit Ethernet. What’s take an important role in this situation is SFP fiber optic transceiver. So let’s take an eye on it. SFP is also called small form-factor pluggable which is a version of Mini GBIC. at first sight, you can find the size is only half of GBIC. It supports data rates up to 10 G. The SFP Transceiver are available with a variety of transmitter and receiver types. What’s more, it is with LC interface. The kind of SFP transceiver module called SFP-10G-SR in Fiberstore is a quite well choice, it is nearly same as Cisco SFP 10G SR. SFP is regarded as a hot pluggable module, this make it Effortless to alter and effortless for upkeep in comparison with conventional modules. It makes the Ethernet network easier to upgrade and sustain. End users can replace a Solitary SFP module Throughout the Procedure Rather of replace the complete board with various modules on it.

SFP+ twinax cables are copper cables with two SFP+ transceivers attached on either end. This  SFP cable is also known as Direct Attach Cables (DAC). Using twinax cable is significantly cheaper than connecting devices using two 10 Gbps fiber optic transceivers over fiber cable. There are two types of twinax cables. active and passive. In IBM b-type switches only active cables are supported which contain Vital Product Data (VPD) information. Twinax cable is available in length of 1m, 3m, and 5m. Also referred to as twinax, a direct-attach twinaxial cable is very similar to coaxial cable, except for one additional copper conductor core. Both twinax cores are protected by an insulator layer and another metallic conductor surrounding the core pair. Analogous to twisted-pair cables, both cores are twirled together to diminish interference effects from outside sources.

Originally created by IBM for shorter-distance connections, twinax cables offer a cost effective way to interconnect Ethernet devices within racks and across adjacent racks. These cables are usually accommodated into the transceiver housing of a switch or server. Direct-attach 10 Gigabit Ethernet twinax cables have Enhanced small form factor pluggable (SFP+) compatible connectors while 40 Gigabit Ethernet twinax cables deploy Enhanced Quad small form factor pluggable (QSFP+) connectors.

On both data rates, twinax cables are available in the following types. Active: Have components in the SFP+ or QSFP+ housing to improve the signal quality. Usually covers 7 and 10 meters. Passive: Have straight conduction between devices and are available in 1, 3, and 5 meters. for example Cisco SFP-H10GB-CU1M and what SFP-H10GB-CU1M in Fiberstore has same functions with Cisco’s and it also fully compatible with Cisco devices, the same time the price is lower than Cisco’s. Twinax cables have achieved high popularity in data centers because of their high benefit/cost ratio. As an additional advantages, twinax cables present a much lower bit error rate (1 error in 10 E18 bits transmitted) than the IEEE requirements for 10 Gigabit Ethernet connections (1 error in 10E12 bits transmitted). Although the 2004 IEEE 802.3ak standard was the first to introduce 10 Gigabit Ethernet in Twinax cables (10 GBase-CX4), this superseded solution was based on infiniband twinax cables, The twinax cables currently used in 10 Gigabit Ethernet are standardized by the small form format committee standard SFF-8431 and 8461.

Although the Ethernet standardization process has its fair share of politics, the study of its timeline remains a good way to access the networking industry trends over the last three decades. we can see some trends, such as twisted-pair roughly increased ten times its data rate every five years. That pace, however, did not continue in speeds higher than 10 Gbps. Optical fiber had a slightly faster development, being the first media to support data rates higher than 100 Mbps. It also presented the highest longevity among all media. Twinax cables have risen as a viable Ethernet option for 10-Gbps connections.

Because of the higher cost of optical transceivers, fiber is typically employed on links between switches, where higher speeds are required the earliest. High-volume connections, such as server access, depend on lower costs to justify an upgrade to faster data rates. For that reason, twisted-pair and direct-attach twinax cables have been the most popular choices for these connections.

At last, The above information are come from Fiberstore fiber optic manufacturer. Go ahead to check out the details! And the same time there is a good news is that Fiberstore is making a 30% discount about most products, welcome you to visit our online store.

Article Source: http://www.fiber-optical-networking.com/

Choose an Experienced Supplier is Necessary

When you need to replace or install a new transceiver module and other network system project, you get the best product is very important. These transceivers should be based on industry standard way to proceed. This will ensure that you get are to meet industry standard network system accessories. There are several places where you can buy these products for your home or office systems. So, you know the best transceiver modules and accessories you buy, you will want to find a certified professional businesses.

You should find a wide range, from a qualified supplier network projects. A huge stock usually means you are buying from a quality dealer. You should be able to buy things like media converters, fiber optic jumper cables and fiber optic lines. These types of vendors usually have this experience in order to be able to answer all your technical questions and advise you on what will be the best product for your system. You should be wary of trickery random cables and transceivers and has nothing to do with the system, or computer network projects of any retailer’s stock.

When you are looking for a supplier, you will be able to tell the designer accessories, they sell if their quality. You should be able to find something like a Cisco SFP transceivers, Dell, D-link’s, 3Com and GLC-T products. These are all well-known manufacturers in the industry. You will you buy the best product possible from all these brands. Find out which brand retailers sell you made about them before the final choice. For example,SFP-10G-SR in Fiberstore, which is has the same functionality and performance with Cisco SFP 10G SR and is fully compatible with Cisco’s products, and that choice in Fiberstore also feasible.

An experienced businesses will know how to help you find the best items for your system. The best vendors will sell a large selection Xenpak, GBIC and SFP modules. Some vendors also offer customized services according to your requirements to design and production of the product, such as this in Fiberstore of SFP + passive copper cable is directly connected, the SFP-H10GB-CU1M with and Cisco SFP-H10GB-CU1M completely the same functions and features and is compatible with all Cisco equipment, even still lower than price of Cisco. An experienced provider will know to explain to you. If they can not answer any questions about the transceiver module systems and related functions, which may mean you are not from a reliable and experienced supplier sourcing products.

Find a reputable supplier is easy. The Internet is a great place to find retailers selling networking products at a good price. System for your project online shopping can be beneficial when it comes to prices. Without worrying about the store, online retailers can charge much less. You definitely want to talk to people before you make your purchase. All the possible information you need to get shipped to your time right accessories.

Fiberstore founded in 2001, our focus is to provide quality SFP cable, SFP module and related products, local and wide area networking products. Our company is characterized by personalized service. We know you have many choices where to buy, so we do our best to provide the best SFP products to best support the best possible price. The good news is Fiberstore now being carried out to a 30% discount offer, if you want to know more product information, please visit our online store at http://www.fiberstore.com/

Article Source: http://www.china-cable-suppliers.com/

Supply the SFP Transceiver Module and SFP Cables

Many people is likely t need SFP transceiver module or cables but they do not know which they should buy, and now I will introduce the two products in Fiberstore.

SFP-10G-SR is hot-swappable fiber transceiver module with 850nm VCSEL transmitter and PIN photo detector, it is fully compatible with IEEE 802.3ae 10Gbase-SR, electrical interface of the SFP+ SR is compliant to SFF-8431. SFP 10G SR features are low power consumption and it supports multi-rate from 2G fiber channel to 10G Ethernet. And we know Cisco SFP 10G SR is a SFP module that used for 10Gigabit applications, we Fiberstore supply Cisco the SFP 10G SR equivalent transceivers, they are compatible to work with both 50/125MMF and 62.5/125MMF, the characteristics of the other feature the good prices, excellent performance and 100% compatibility.

The SFP 10G SR hot swappable transceiver use LC connector interface, supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Using 2000 MHz*km MMF (OM3), up to 300m link lengths are possible. The SFP 10G SR modules are easy for deployment and maintenance, Rohs compliant and meet the IEEE standards for 10G Ethernet. 10 Gigabit Ethernet over copper is most commonly found in an SFP+ direct attach form-factor, in which twinaxial copper is terminated by SFP+ housing attached to the end of the cable, Some vendors refer to these as Direct Attach Copper (DAC) cables. These are used for fairly short runs, 1 to 7m for passive cables or up to 15m for active cables, with the latter drawing transmission power from the connected device. 10 Gigabit copper over UTP(10GBase-T) is also available, but is less common at the moment, as upgrading infrastructure to support it tends to cost more than using existing SFP+ ports.

In fact, External ports include 14 ports for 1 Gb or 10 Gb Ethernet SFP+ transceivers (support for 1000Base-SX, 1000Base-LX, 1000Base-T, 1000Base-SR, or 10GBase-LR) or SFP+ copper direct-attach cables (DAC). Ten ports are enable by default. An optional FoD license is required to activate the remaining four ports. SFP+ modules and DAC cables are not included and must be purchased separately. When 10 GbE started to be widely deployed in the data center, the most prominent copper cable type used was based on the enhanced small form-factor pluggable (SFP+) standard. The SFP+ reach is limited to about 7 m when using direct attached copper cables and around twice that when using active copper transceivers in the cable connectors. For longer reaches, optical cables are used between the racks. But these SFP+ cables are relatively expensive compared to Cat5.

The Cisco 10GBASE SFP+ modules offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. Cisco SFP+ Copper Twinax direct-attach cables are suitable for very short distances and offer a cost-effective 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. As we know Cisco SFP-H10GB-CU1M, this SFP-H10GB-CU1M can apply into 1-8G Fiber Channel and 1-10G Gigabit Ethernet, or these devices such as Hub, Switches, Routers, Servers, Network Interface Card (NICs), its function mainly include networking, storage, telecommunications.

Fiberstore is a leading manufacturer and supplier of fiber optic transceiver.module and SFP cable. They have a large quantity of SFP transceivers and cables in stock. All of the SFP-10G-SR transceivers are tested in-house prior to shipping to insure that they will arrive in perfect physical and working condition. And they guarantee the SFP-10G-SR transceivers to work in your system and all of fiber optic equipment coming with a lifetime advance replacement warranty. And very pleasnat news it that Fiberstore is doing with 30% of the price on sale of most fiber optical products, and if you want to know more, welcome to visit our online store.

Article Source: http://www.fiber-optic-solutions.com/

Better Explanation for the SFP Equipments

We all know fiber optics transfer information at the speed of the light, and they can send huge power at once. How the SFP cable is made as well as the units that send and receiver data are the essential parts of the machines. A SFP module is simply the system that understands the signals being sent to it and understands the language to send response data back. These units are the foundation of any network since they are so simple but provide an essential function.

1 Gigabit is the normal speed of today’s household networks. It is different to transfer information within a high performance environment, usually needing many connections significantly faster than one gigabit to work well. Newer XFP modules are the advanced version, and those are equipped for transferring at up to 10 Gigabits. The next era of communication standard called SFP+ will shift a lot of the processing that was built into the device onto the host board. Though the motherboards in each server will have to be upgraded to support them, they will offer more savings by not having to put an independent controller in each unit.

In fact the SFP module is a replacement for what are known as GBIC equipment. The electronic, mechanical and optical popular features of these hot-plug systems are laid down by a multisource arrangement relating to network component dealers. SFP modules are usually inspired by GBIC interfaces only that they will be designed with more desirable port densities. SFP transceivers are also available with a “copper” cable interface, allowing a host device designed primarily for optical fiber communication to also communicate over unshielded twisted pair networking cable. Such as SFP-H10GB-CU1M in Fiberstore what the SFP+ Passive Copper Direct Attach Cable can offer the same function with Cisco SFP-H10GB-CU1M and it is fully compatible with Cisco devices.The stipulations guaranteed by SFP group is assumed to guide fiber optic industry’s engineering leaders offering IBM, Tyco, Molex and Agilent. The SFPs succeeded GBIC interfaces because they are faster and smaller, and more efficiently than before when transferring information. The lengthier the copper wiring, the slower the information arrives, but they are suitable for small area telecommunication. these equipments are best for small companies because of the low expense and significant performance.

To keep track of what is going on and do diagnostics on the network, Cisco SFP modules use digital optical monitoring features. In large server situations where information loads must be balanced among many connections, these tools allow a server operator to pinpoint issues and tweak the system to run more efficiently. These devices are what make running substantial server operations possible, since they allow loads from very light to substantial use times to run as if nothing is happening better. For example Cisco SFP 10G SR, The SFP-10G-SR series multi-mode transceiver is SFP+ module for duplex optical data communications such as 10GBASE-SR and 10GBASE-SW. Since SFP+ standards are significantly different and potentially hurt the convenience these plugs provide, they are often looked down upon by longtime server providers. In order to compensate for this, the integrated controllers on the motherboards are being created to be flexible for future technologies. Removing some of the power from the SFP modules has met some scrutiny considering they are no longer completely interchangeable, but the processors that will assist the SFP+ format are designed to function more openly. In order to compensate for this, the bundled controllers on the motherboards are being designed to be flexible for future technologies.

It is well-known that we must buy good quality of fiber optical equimpments, there is a very good choice for you. Fiberstore is a professional store to sell related optical products and now it is doing with a discount of 30% at the price. If you want to know more information welocme to visit our online store.

Article Source: http://www.fiberopticshare.com/

10GB Ethernet SFP Cable Configuration Guidelines

The 802.3 ae supplement that initially defined 10 Gigabit Ethernet was adopted in 2002 and recently Cisco to launch a product compliant with IEEE 802.3ae 10GBASE-SR/SW, Cisco SFP 10G SR, the SFP-10G-SR multi-mode transceiver in Fiberstore is SFP+ module for duplex optical data communications such as 10GBASE-SR and 10GBASE-SW. it is fully compatible with Cisco devices. This module is designed for multi-mode fiber and operates at a nominal wavelength of 850 nm.

The direct attach cables and their SFP module use an electrical signaling interface called SFI, which is defined as the “SFP + high-speed serial electrical interface.” The SFI definition enables 10 Gb/s operation over a single differential signaling path in each direction for a total of two pairs, or four wire connections. The twinax cable includes the two pairs of single-carrying wires in a coaxial cable format, providing high performance and stable signaling over the length of the cable.

The serial link transfers scrambled data at 10.3125 Gbaud to accommodate both data and the overhead associated with 64B/66B coding. The self-clocked nature eliminates skewing between clock and data signals. The SFI link requires a 100 ohm cable impedance, while the signal termination electronics provide both differential and common mode suppression of signal noise and reflections. 10GSFP-PC-30-1-CO series also provides SFP-H10GB-CU1M to compatible 10Gbase-CU SFP+ cable, it can connect SFP+ passive twinax cable assembly, and the length is 1 mete, compliant to SFP+MSA, This cable offers the same function with Cisco SFP-H10GB-CU1M and it is fully compatible with Cisco devices.

The SFP+ MSA specification for direct attach cables note that 10G SFP + CU connections can only be used on systems with common power grounds. The power supplies for the Ethernet switches, and for any computers or other switches that are connected to them over direct attach cables, must themselves be connected to the same local power grid with a common ground between all devices, as a difference in ground potentials between systems connected with DA cables could result in electrical damaged to the interfaces or the devices.

The direct attach cables used in the 10G SFP+CU system come in a limited range of sizes, worth lengths in the range from 0.6m to 7m being the most widely sold. It is up to you to verify which cable lengths are supported by your vendor, and whether the cable can be active or passive. Some vendors support both types of cables on their SFP+ ports, and others do not.

The twinax cable itself is relatively stiff, and many present difficulties if you need to route it through tight spaces. There are two conductors in each twinax cable, with two twinax cables inside a common sheath providing a total of four conductors for signals. As an example, one vendor’s direct attach cable has an outer diameter of 0.180 inches, or roughly 3/16 inch. The minimum bend radius for this cable is one inch. If you bend the cable any tighter than this, it may affect the signal quality.

For optical cable, fiber channel uses the SFP cable. The SFP provides for greater port density and meets the need for smaller connectors than the older SC duplex connector and gigabit interface connector (GBIC). A multi link communication path between two N_ports may be made up of links of different technologies. For example, it may have copper coaxial cable links attached to end ports for short-distance links. with single-mode optical fibers for longer-distance links between switches separated by longer distances. By providing a variety of physical interface options. Fiber channel allows an implementation to select the most appropriate option for a particular scenario.

Fiberstore is an industry’s leading supplier of optical communication products, its products are widely used in telecommunication systems and data communications network. With the strong compatibility of the products what exactly match the mainstream manufacturer’s equipment. Quality assurance in strict accordance with industry standards, and can provide the customized service according to customer’s actual application. And it is vary nice that Fiberstore is working with the price at a discount of 30% now and welcome you to visit and buy from our online store. The website is as follow. http://www.fiberstore.com/

Article Source : http://www.fiber-optical-networking.com/

The Installation of SFP Module and Fiber Cable on SFP Optical Switching Module

First how to install the SFP Module? Optical fiber mode of GbE gigabit switching module contains a SFP with coil. SFP module is to convert electrical signals into light signal of laser products. Before install the SFP modules, we need to know that on the surface of SFP module there designs an integrated guide groove, the purpose is to prevent the user to put in the wrong direction when installation and location. when you insert the SFP modules, please use as little power as possible, because if you force the SFP modules propulsion SFP modules interface, it might damage the SFP modules or SFP modules interface. And SFP modules must be inserted into the SFP module interface to connect optical fiber cable properly, then another point we need to pay attention to is that you must pull out optical fiber cable from the SFP modules and then the SFP modules can be removed from the GbE exchange module.

Well, how to install the SFP modules? Here are some need to be aware of. If you install SFP modules under the condition of the electric, release the switch button must be dealt with half-open state, so that you touched the SFP modules linker 1.2 and 3. Warning: when installing laser products (such as a CD-ROM, DVD drive, fiber optic equipment, or the transceiver), pay attention to the following items: Don’t open the lid of the products. because open the lid is in danger of from laser radiation. Within the device there is not reusable service components. It is better to use control button or a program to adjust performance, don’t choose to use what you may be exposed to a laser. But there I would introduce SFP module to you, SFP-10G-SR in Fiberstore, this Cisco SFP 10G SR multi-mode transceiver is SFP+ module for duplex optical data communications such as 10GBASE-SR and 10GBASE-SW. This module is designed for multi-mode fiber and operates at a nominal wavelength of 850 nm.and it has a very high cost performance.

How to connect the fiber optic cable to SFP modules? When installed on the gigabit exchange module after the SFP modules can connect the fiber optic cable to the SFP modules. As for SFP cable, SFP-H10GB-CU1M is a quite well choice, the Cisco SFP-H10GB-CU1M in Fiberstore are suitable for very short distances and offer a highly cost-effective way to connect within racks and across adjacent racks. How to deal with the optical fiber cable? Note: in order not to damage the optical fiber cable, please follow the following guide to action.

1. Do not use optical fiber cable with folded arms furl.
2. When the spool of data to a trough, leave enough space (don’t let the cable into less than the radius of the 38 mm), make cable can h free scaling.
3. Straighten out the cabinet will cable don’t let it twisted together with other equipment
4. Do not place in tightly rolled up (radius of not less than 38 mm).
5. Don’t push too much pressure. You just need to confirm cable is supported.Installation of fiber optic cables
Complete the following steps to connect the fiber optic cable to the SFP modules:
1. remove optical fiber cable port of protective cap
2. install a good SFP optical fiber cable connected to the module
3. check the exchange module on the LED lights.When the normal work of the switching module, long green connection state of the light is bright.Pull out optical fiber cable

Fiberstore is an industry’s leading supplier of optical communication products, its products are widely used in telecommunication systems and data communications network. Fiberstore engineers and controls the photoelectric device, optical components, modules, design, manufacturing, research and development of core technology and experience. Fiberstore will be able to offer our customers a full range of optical transceiver module, integrated GBIC series, the series of SFP, SFP+ series, XFP series, series of SFF, EPON ONU/OLT, GPON, range from the low rate of 1m to 10G products. With the strong compatibility of the products what exactly match the mainstream manufacturer’s equipment.Quality assurance in strict accordance with industry standards, and can provide the customized service according to customer’s actual application. And it is vary nice that Fiberstore is working with the price at a discount of 30% now and welcome you to visit and buy from our online store.

Article Source: http://www.china-cable-suppliers.com/

How to Set the Domain ID to Implement the Switches

Each switch in the fabric must have a unique Domain ID. The Domain ID can be set using the configure command. You can also allow the Domain ID to be set automatically. The default Domain ID for the SAN768B IS 1.

To set the Domain ID, follow these steps:

1.Enter the fabric show command to determine the current Domain IDS available.

2.Enter the switch Disable command to disable the SAN768B

3.Enter the configure command. Enter y at the fabric parameters pro met: Fabric parameters (yes, y, no, n)

4.Then, enter a unique Domain ID

5.Complete the remaining prompts or press Ctrl+D to accept the other setting and to exit.

6.Enter the switch Enable command to re-enable the SAN768B.

7.Add SFPs and fiber optic cables to the ports as required. Cables: The ports and cables that are used in trunking groups must meet specific requirements.

8.Remove the shipping plug from the ports to be used.

9.Position the SFP so that the key (the tab near the cable-end of the SFP)is on top, and insert the SFP into the port until it is firmly seated and the latching mechanism makes a clicking sound. For specific instructions, see the SFP manufacture’s documentation. Attention: The SFP module is keyed so that it can only be inserted correctly into the port. If the module does not slide in easily, make sure it is not upside down.

10.Connect the fiber optic cable to the SFPs as appropriate to the fabric topology by positioning each cable so that the key (the ridge on one side of the cable connector) is aligned with the slot in the SFP, then inserting the cable into the SFP until it is firmly seated and the latching mechanism makes a clicking sound.
Attention: The cable is keyed so that it can only be inserted correctly into the SFP, if the cable does not slide in easily, try turning it over.

11.Verify the correct operation of the switch.

12.Enter the following command at the Telnet prompt to verify the switch and port status

Switch show Backups: This command provides information about the status of the switch and the ports. Always back up to the configuration after any initial configuration changes and then perform backups periodically thereafter. This ensure that a complete configuration is available if ever required for uploading to a replacement switch. Switch configuration is backed up by issuing a configupload to the FTP server. You must install a SFP module ineach interface connector on the controller where a fiber-optic cable is to be installed.

To give its customers flexibility as to the type of Ethernet links, even after the customer has bought the switch, Cisco switches include some physical ports whose port hardware can be changed later, after you purchase the switch. One type of port is called a gigabit interface converter(GBIC), which happened to first arrive on the market around the same time as Gigabit Ethernet, so it was given the same “gigabit”
name. More recently, improved smaller types of removable interfaces, called small form-factor pluggable (SFP), provide the same function of giving users the ability to swap hardware and change the type of physical link.

For example, Cisco SFP 10G SR, The Cisco SFP-10G-SR Module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700MHz*km MMF (OM4), up to 400m link lengths are possible. and its feature is that SFP+ transceiver module for MMF, 850-nm wavelength, LC duplex connector.

Cisco SFP-H10GB-CU1M, a kind of SFP-H10GB-CU1M, 1-m 10G SFP+ Twinax cable assembly and belongs to passive device. This is a 10-meter long twinax SFP cable providing 10 Gbps Ethernet. At a length of 10 meters, this cable requires active transceivers at both ends.

As you know, I work at Fiberstrore now, it designs, manufactures, and sells a broad portfolio of optical communication products, including passive optical network, or PON, subsystems, optical transceivers used in the enterprise, access, and metropolitan segments of the market, as well as other optical components, modules, and subsystems. And there is a good news that many products are in the price at a discount of 30% now and welcome to viit our online Fiberstore.

Article Source: http://www.fiber-optic-transceiver-module.com/

The Development Of The SFP Optical Module

First of all, let me introduce the development of GBIC and SFF.

A Gigabit Interface Converter is a hot-swappable transceiver for networking equipment. It could connect a Gigabit Ethernet, fibre channel as well as other direct attach cable to a compatible network card. It is usually found in computer networks that depend upon flexibility in the kinds of connections they could accommodate.

Also known from the acronym GBIC, a Gigabit Interface Converter can be quickly replaced without powering down the server it is attached with. A GBIC-compatible network card can be linked to any of the supported high-speed media. A GBIC is available for every of several fibre channel cable types and also Gigabit Ethernet. This provides network designers and maintainers the pliability to increase and reconfigure their networks when needed.

The Small Form Factor (SFF) Committee, an ad hoc industry group, developed a Gigabit Interface Converter specification in the late 1990s. Called SFF-8053, it establishes a standard electronic interface and a mechanical form factor for these devices. Originally written for a fibre channel converter design, the spec now includes Gigabit Ethernet-specific information too. It also details algorithms that can be used for GBIC management and error recovery.

A Gigabit Ethernet GBIC generally carries a microcontroller and a 1000Base-T SFP Transceiver. They are able to make contact with each other over the Inter-Integrated Circuit (I2C) bus. Signals to and from the network card connector can also travel over this serial bus. On the network side, a transformer couples the transceiver signals to a Registered Jack 45 (RJ45) connector. 

The form factor of a Gigabit Interface Converter was originally designed for a fibre channel connection. A physically smaller variety known as a Small Form Factor Pluggable transceiver (SFP Transceiver) also exists. Sometimes called a mini-GBIC, it offers a similar flexibility as a standard GBIC in a smaller package. A 10 Gigabit SFP transceiver, specially designed for the higher-speed network technology, is slightly larger.

The development of the SFP optical module

SFF and GBIC module in the process of development have very special history, with the rapid development of network, they are gradually replaced by the SFP optical module.

SFP optical module, the development of SFF and module GBIC light because of SFF and module GBIC is 1 x9 light after two direction of products, have their own advantages: miniaturization and hot plug.

Inherited the SFP optical module GBIC hotplug characteristics, also draw lessons from the SFF miniaturization advantage.By LC, the volume is only 1/2 to 1/3 of the GBIC module, greatly increased the port density of network equipments, conform to the trend of rapid development of network, so has been the most widely fan used, the main equipment manufacturers, with no exception to discard the GBIC products, only USES the SFP optical module products.Due to adopt a unified standard, each manufacturer of SFP product can be compatible, SFP products can be used as a single network equipment procurement.

Although currently there has been many higher technology, update of light module products, however the SFP module is constantly exist for a long time.After the SFP optical module development mainly toward a higher rate of development, now has 10g, 40g to 100g optical module, etc.After the SFP + light module believe SFP is widely used a generation of products.

No matter what kind of SFP, you can find in the fibestore. And now, all Transceiver Modules are 30% Off!

SFP Transceiver Introduction

What Is SFP?

A small form-factor pluggable (SFP) transceiver is a compact, hot-swappable, input/output transceiver used in data communication and telecommunications networks. SFP interfaces between communication devices like switches, routers and fiber optic cables, and performs conversions between optical and electrical signals. SFP transceivers support communications standards including synchronous optical networking (SONET)/synchronous digital hierarchy (SDH), gigabit ethernet and fiber channel. And also they permit the transport of fast Ethernet and gigabit Ethernet LAN packets over time-division-multiplexing-based WANs, along with the transmission of E1/T1 streams over packet-switched networks.

SFP Module is usually called a mini gigabit interface converter (GBIC) because its function is comparable to the GBIC transceiver however with smaller sized dimensions.The SFP transceiver is specified by the SFP Transceiver Multisource Agreement (MSA), that is developed and it is followed by different transceiver manufacturers.

SFP Transceivers have a diverse range of detachable interfaces to multimode/single-mode fiber optics, which allows users to select the appropriate transceiver according to the required optical range for the network.

SFP transceivers are available with copper cable interfaces, which allows a host device designed primarily for optical fiber communications to also communicate over unshielded twisted pair networking cables. Modern optical SFP transceivers support digital diagnostics monitoring (DDM) functions, also known as digital optical monitoring (DOM). This feature gives users the capability to monitor the real-time parameters of SFP, such as optical output power, optical input power, temperature, laser-bias current and transceiver supply voltage.

Kinds Of SFP Transceiver Modules

SFP Transceivers can be purchased with a number of 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 type (e.g. multi-mode fiber or single-mode fiber).

On the market, optical SFP modules are generally for sale in several different categories:

1.For multi-mode fiber, with black or beige extraction lever

SX - 850 nm, for a maximum of 550 m at 1.25 Gbit/s (Gigabit Ethernet) or 150m at 4.25 Gbit/s (Fibre Channel).

2.For single-mode fiber, with blue extraction lever

LX - 1310 nm, for distances up to 10 km.

BX - 1490 nm/1310 nm, Single Fiber Bi-Directional Gigabit SFP Transceivers, paired as BS-U and BS-D for Uplink and Downlink respectively, also for distances up to 10 km.

CWDM and DWDM SFP transceivers at various wavelengths achieving various maximum distances: 1550 nm 40 km (XD), 80 km (ZX), 120 km (EX or EZX).

3.For copper twisted pair cabling

1000BASE-T SFP Transceiver - these modules incorporate significant interface circuitry and can just be used in Gigabit Ethernet, as that is the interface they implement. They are not suitable for (in other words: don't have equivalents for) Fibre channel or SONET.

Fiberstore is a professional fiber optic manufacturer for all types of fiber optic transceivers, which also provides many various types of sfp direct attach cable. If you're on the market for SFP Transceivers, such as Cisco SFP Cables, Compatible SFP, 100M& 1G SFP, SWDM & DWDM SFP, BIDI SFP, Copper & SGMII SFP. Today is the perfect time to buy with the 30% Saving.

1000BASE SFP Transceiver Provided By Fiberstore

The 1000BASE designation is an IEEE shorthand identifier. The "1000" in the media type designation refers to the transmission speed of 1000 Mbps. The "BASE" refers to baseband signalling, which means that only Ethernet signals are carried on the medium. For Gigabit Ethernet, industry offerings include these types of wiring:

• 1000BASE-T (four pairs of Category 5 unshielded twisted pair cable for a maximum length of 100 meters)
• 1000BASE-SX (a short laser wavelength on multimode fiber optic cable for a maximum length of 550 meters)
• 1000BASE-LX/LH (a long wavelength for a "long haul" fiber optic cable for a maximum length of 10 kilometers)
• 1000BASE-EX (the laser wavelength is 1310nm on single-mode fiber optic cable for a maximum length of 40 km)
• 1000BASE-ZX (an extended wavelength single-mode optical fiber for up to 100 kilometers)
• 1000BASE-BX10(single way single-mode fiber optic cable for a maximum length of 10km)

Cisco, one of the top 500 companies in this world, supplies network and communications goods and service. Its SFP(small form-factor pluggable) transceiver is popular using their routers and switches. Cisco SFP is definitely an upgraded version fiber optic transceiver in the traditional one, which can be smaller and more flexibility. Cisco SFP provides a number of the transceivers with various working wavelength and distance. Today I'd like to introduce you something about the Cisco 1000Base SFP transceivers, including 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-EX, 1000BASE-ZX, or 1000BASE-BX10-D/U on the port-by-port basis.

1000BASET SFP for Copper networks work on garden variety Category 5 unshielded twisted pair copper cabling. Cisco 1000BASE-T SFP is capable of approximately 100m (328 ft) link lengths. Cisco 1000BASE-T SFP modules support 10/100/1000 autonegotiation and Auto MDI/MDIX.

1000BASE-SX SFP which in some areas is called Transceiver SX, and it can be used just for the purposed from the multimode optical fiber. It is fully suitable for IEEE802.3z 1000BASE-SX standard. 1000BASE-SX SFP traditional 50 microns of multimode optical fiber link is 550 meters high and 62.5 micron fiber distributed data interface (FDDI) multimode optical fiber can be 220 meters.

Used for 1000BASE-LX/LH SFP(GLC-LH-SM) single mode and multimode optical fiber application. Compatible with IEEE802.3z 1000BASE-LX standard 1000BASE-LX/LH SFP. the SFP operating cycle standard single mode fiber optic link up to 10 km, 550 meters of any of the multimode optical fiber. With the traditional form of multimode optical fiber, transmitter should adjust cable and through the model.

1000BASE-EX SFP is perfect for long-reach, single mode fiber can reach 40 km long. A 5 dB must be inserted regarding the inline optical attenuator from the fiber optic cable on both sides from the receiving port of SFP back end about the hyperlink to the connections about the back.

1000BASE-ZX SFP(GLC-ZX-SM) is required for too long distance, about 70km duration of single mode fiber application. SFP optical link budget of the 23 decibels, but the exact link span depends on multiple factors, for example, fiber optic connector, quantity and connector.

1000BASE-BX10-D and 1000BASE-BX10-U SFP of single fiber bi-directional applications and compatibility according to IEEE 802.3ah 1000BASE-BX10-D and 1000BASE-BX-10-U standards. 1000BASE-BX10-D SFP are operated by only one strand of ordinary SMF.

Fiberstore.com provides a fully choice Cisco SFP fiber optic transceivers, including Cisco Bidi SFP,Cisco Copper SFP , Cisco DWDM SFP and Cisco CWDM SFP . The Cisco 1000BASE SFP Transceiver provided by Fiberstore are economic price but high-quality. Their Cisco SFP modules fully tested to be sure the compatibility with equipment from Cisco as well as other companies.

QSFP+ in the 40 Gigabit Ethernet Fiber Optic Media Systems

There are two 40 Gigabit fiber optic physical medium dependent (PMD) specifications in the standard, which provide 40 Gb/s Ethernet over multimode fiber optic (MMF) cable and single-mode fiber optic (SMF) cable. The 40GBase-SR4 short reach fiber optic system sends four lanes of PCS data over four pairs of multimode cables, for a total of eight fiber strands. The 40GBase-LR long-reach system sends four lanes of PCS data four wavelengths of light, carried over a single pair of fiber optic cables.

The first 40 Gb/s transceivers were based on the C form-factor pluggable (CFP) module, 40G CFP Transceiver which is a large module capable of handling up to 24 watts of power requirements were based on this module. The CFP modules is specified by a multiagreement.

CFP module, which can be used to provide either a 40GBase-SR4 or a 40GBase-LR4 transceiver. The module is a 40 GBase-LR4 connection is described. The most popular connector for 40 Gb/s interfaces these days is the QSFP+ module: it takes up much less space on a switch or server interface, making it possible for vendors to provide multiple QSFP+ transceiver module for 40GBase-SR4 is provided with a multifiber push-on (MPO) media connector, carrying multiple pairs of fiber optic cables to support the four lanes of data for the short reach fiber standard. The 40GBase-LR4 long-reach system uses a QSFP+ transceiver equipped with a duplex fiber connector for connecting to the single pair of fiber cables.

Recently Molex Incorporated, the world's largest plug-in companies introduced the QSFP+ interconnect solution designed for a multimode of markets and applications including switches, router, Host Bus Adapters (HBAs), enterprise data centers. high-performance computing (HPC) and storage. Components of the system include the Electromagnetic Interference (EMI) shielding cage, passive cable assembly, active cable assembly, optical MTP cable assembly, optical QSFP+ loopback, and a 38-circuit SMT iPass host connector.

"The QSFP has evolved to QSFP+ to meet 40Gbps data rates just as SFP progressed from SFP to SFP+ for 40 Gbps rates. The original QSFP MSA now resides as INF-8438 and is no longer an appropriate designation for use, being superseded by SFF-8436 in the SFF Committee," said Jay Neer, advanced technical market manager, industry standards, Molex Incorporatd.

QSFP+ uses a standard 38-circuit iPass SMT host connector with a proven mating interface that connector with a proven mating interface that enables high durability. The iPass SMT host connector with a proven mating interface that enable high durability. The iPass contact design, also implemented in other standards such as PCIe, SAS, SATA, Ethernet and InfiniBand, provides four balanced differential channels featuring class-leading isolation, and bandwidth, with durability cycling up to 250 cycles. The Molex host connector mounts to the PCB beneath a low-profile metal cage that provide latch points and is engineered to provide appropriate EMI protection for the host system port. Optional light pipes and heat sink thermal solutions can be slipped onto the cage when needed.

The QSFP+ cables assemblies are designed to accommodate stacked and ganged connector configurations in extremely high density requirements. They support 40G Ethernet, InfiniBand, SAS and SONET/SDH standards with different data rate options.

The optical QSFP+ MTP cable assemblies and loopbacks meet the QSFP+ interface specification. Cables are constructed with 12-fiber 3.00mm round cable for data center interconnect cable assembly applications.

The round cable provides much improved cable management over the traditional flat ribbon cable. A robust 4.50mm round optical cable ensure cable integrity and improved cable routing for installations that require connections greater than 25m apart.

QSFP+ breakout cable assemblies are available for SFP+ or patch panel installations. Loopbacks feature a compact housing compatible with module spacing and loop optical transmit ports to receive ports for testing, burn -in, and field troubleshoot.

The related products what mentioned above all can be offered from Fiberstore, at the same time, I need to tell you good news that some optical fiber products are working with 30% of the price discount now. Welcome to visit our online store. (http://www.fiberstore.com)

40G Ethernet Fiber Optic Transceivers Introduction

The development of a brand new Ethernet system that operates up to 10 Gb/s began with a Higher Speed Study Group "Call For Interest" meeting in July 2006. In response, an IEEE task force was formed to develop a 100 Gb/s Ethernet system in the 802.3ba supplement. This effort was then expanded to include 40 Gb/s Ethernet, and the combined 40 and 100 Gb/s 802.3ba supplement was completed and published in 2010. The 40 and 100 Gb/s specifications were adopted into the standard as Clauses 80 through 89.

There's two 40 Gigabit fiber optic physical medium dependent (PMD) specifications in the standard, which offer 40 Gb/s Ethernet over multimode fiber optic (MMF) cable and single-mode fiber optic (SMF) cable. The 40GBASE-SR4 short reach fiber optic system sends four lanes of PCS data over four pairs of multimode cables, for a total of eight fiber strands. The 40GBASE-LR4 long-reach system sends four lanes of PCS data over four wavelengths of light, carried over a single pair of fiber optic cables. And today,we introduce Fiberstore two kinds of 40 Gigabit fiber optic transceivers.

The first 40 Gb/s transceivers were depending on the C form-factor pluggable module(40Gbit/s CFP Transceiver), that is a large module able to handle faster than 24 watts of power dissipation. First-generation transceivers with multiple chips and greater power requirements were according to this module. The CFP module is specified by a multiagreement.

Figure 1 shows a CFP module, which can be used to supply either a 40GBASE-SR4 or a 40GBASE-LR4 transceiver. The module shown in this figure is a 40GBASE-LR4 transceiver, which provides two SC fiber optic connectors for connection to a pair of single-mode fibers.

Figure 1. 40GBASE-LR4 CFP Optical Transceiver Module

The second is named 40-Gigabit QSFP+ transceiver module,that is a hot-swappable, parallel fiber-optical module with four independent optical transmit and receive channels. These channels can terminate in another 40-Gigabit QSFP+ transceiver, or the channels could be broken out to four separate 10-Gigabit SFP+ transceivers. The QSFP+ transceiver module connects the electrical circuitry of the system with either a copper or an optical external network. (See Figure 2 for a view of the optical QSFP+ transceiver.) The transceiver is used primarily in short reach applications in data center equipment, routers, and switches where it offers higher density than SFP+ modules.

Figure 2 shows a single-mode fiber optic cable terminated in an LC optical plug connector. Also shown is a 40G QSFP+ transceiver module with LC optical sockets.

Figure 2. 40GBASE-LR4 QSFP+ Transceiver Module

The QSFP+ 40GBASE-LR4 transceiver module is the newest technology for OEM next-generation systems where industry leaders are eager to extend reach, increase speed and lower their customers'overall power consumption and simply large data center and enterprise applications. Moving to 40GbE QSFP+ also significantly improves port density.

The 40GbE QSFP+ module extends a pre-existing 40G family of products provided by Fiberstore, such as the 40GBASE-LR4 module from the larger CFP form factor which is seeing initial deployments in customer systems now and has been recently announced as production released. 40GBASE-LR4 technology offers OEMs a cheaper cost, longer reach substitute for traditional 40G Sonet/SDH client interfaces and makes 40G deployments much more economically viable in high-speed switches and edge routers.

Fiberstore, a world leader in high-speed optical communications technology,which provides all kinds of Internet networking connection solution. Except to provides fiber optic transceivers and DAC cables, fiberstore.com also provides customized solutions for all needs and specifications.

Fiberstore DAC Cable Compatible For Cisco 10Gigabit Ethernet

Fiberstore, the leading interconnect manufacturer formally announced the expansion of its high-speed 10-Gigabit products which have established a reputation for premium quality, proven performance and competitive prices. The Fiberstore interconnect solutions: 10-Gigabit solution saving starts Now at Fiberstore on demand. Buy direct from the world’s largest SFP+ cable OEM and save with new discounted pricing.

10G SFP+ Direct Attach Cable (DAC), twinax cable with SFP+ connector, is designed to work with equipment with 10G SFP+ interface,and pirce is cheap.For example: Cisco SFP-H10GB-CU1M Compatible SFP to SFP Copper direct-attach cables only need US$ 18.00. (from Fiberstore Interconnect Compatible Solutions).This cable offers the same function with Cisco SFP-H10GB-CU1M and it is fully compatible with Cisco devices.They provide a low cost, low power and low latency interconnect solution for 10-Gigabit Ethernet, Fiber Channel and other industry standards, and are direct attached compliant and fully conform to the SFP+ MSA specifications.

Fiberstore offers all DAC cable compatible for Cisco 10-Gigabit Ethernet:
SFP+ Twinax Copper Cables

Figure 1. 10G SFP+ Twinax Copper Cable.

SFP+ copper twinax direct attach cables are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Fiberstore 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.(Cisco Twinax Cables)

SFP+ Active Optical Cables

Figure 2. 10G SFP+ Active Optical Cable.

SFP+ active optical cables (AOC) are direct-attach fiber assemblies with SFP+ connectors. They are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Fiberstore offers Active Optical Cables in lengths of 1, 2, 3, 5, 7, and 10 meters.

Fiberstore offers customized service for cable length. Fiberstore provides 10G SFP+ cables, including 10G SFP+ copper passive / active cable and 10G SFP+ AOC cable, in various lengths according to requirement of customers. (Custom SFP+ Direct Attach Cable)

If you are in the market for high speed copper cables, such as CX4 Cables, HD Mini-SAS Cables, SFP+ Cables, QSFP Cables. Today is the perfect time to buy with the 30% Saving.These cables are 100% compatible with major brands like Cisco, HP, Juniper, Enterasys, Extreme, H3C and so on.

Four Kinds Of Cables For Cisco 40-Gigabit Compatible Solution

These cables for cisco 40-gigabit compatible solution,which is provided by the Fiberstore. Now available cables: 40G QSFP+ DAC Cables from Fiberstore Interconnect Solutions in lengths up to 100m (330') for 40-Gigabit compatible solution. Buy direct from the World's Largest QSFP+ cable OEM and save with new discounted pricing. Cisco QSFP+/SFP+ Cables. Here are four kinds of DAC Cables for Cisco 40-Gigabit Compatible Solution.

QSFP to QSFP Copper Direct-Attach Cables

 

QQ-AC-30-X-CO series products are compatible for Cisco 40GBASE-CR4 QSFP direct-attach copper cable, 1-10 meter, passive and active solution.   Fiberstore QSFP to QSFP copper direct-attach 40GBASE-CR4 cables are suitable for very short distances and offer a highly cost-effective way to establish a 40-Gigabit link between QSFP ports of Cisco switches within racks and across adjacent racks. We offers passive cables in lengths of 1, 3, and 5 meters and active cables in lengths of 7 and 10 meters.

 

 

Part No.	Data Rate	Length	Wire AWG	Connector Type	Temp. Range
QQ-PC-30-1-CO	Up to 40G	1m	AWG30	Passive Copper	0-70℃
QQ-PC-30-3-CO	Up to 40G	3m	AWG30	Passive Copper	0-70℃
QQ-PC-30-5-CO	Up to 40G	5m	AWG30	Passive Copper	0-70℃
QQ-AC-30-7-CO	Up to 40G	7m	AWG30	Active Copper	0-70℃
QQ-AC-30-10-CO	Up to 40G	10m	AWG30	Active Copper	0-70℃

 

QSFP to Four SFP+ Copper Breakout Cables

 

Q4S-PC-30-X-CO series products are compatible for Cisco 40GBASE-CR4 QSFP to 4 10GBASE-CU SFP+ direct attach cable, 1- 10 meter, passive and active solution. Fiberstore QSFP to four SFP+ copper direct-attach breakout cables  are suitable for very short distances and offer a highly cost-effective way to connect within racks and across adjacent racks. These breakout cables connect to a 40G QSFP port of a Cisco switch on one end and to four 10G SFP+ ports of a Cisco switch on the other end. Our passive cables in lengths of 1, 3, and 5 meters and active cables in lengths of 7 and 10 meters.

 

 

Part No.	Data Rate	Length	Wire AWG	Connector Type	Temp. Range
Q4S-PC-30-1-CO	Up to 40G	1m	AWG30	QSFP+ to 4 SFP+	0-70℃
Q4S-PC-30-3-CO	Up to 40G	3m	AWG30	QSFP+ to 4 SFP+	0-70℃
Q4S-PC-30-5-CO	Up to 40G	5m	AWG30	QSFP+ to 4 SFP+	0-70℃

 

QSFP to Four SFP+ Active Optical Breakout Cables

 

Q4S-AOC-X-CO series products are compatible for Cisco 40GBase-AOC QSFP to 4 SFP+ active optical breakout cable 1-10 meter solution. Fiberstore QSFP to four SFP+ Active Optical breakout cables are suitable for very short distances and offer a flexible way to connect within racks and across adjacent racks. Active optical cables are much thinner and lighter than copper cables, which makes cabling easier. AOCs enable efficient system airflow and have no EMI issues, which is critical in high-density racks. These breakout cables connect to a 40G QSFP port of a Cisco switch on one end and to four 10G SFP+ ports of a Cisco switch on the other end. We offer active optical breakout cables in lengths of 1, 2, 3, 5, 7, and 10 meters.

 

 

Part No.	Data Rate	Length	Cable Type	Connector Type	Temp. Range
Q4S-AOC-1-CO	Up to 40G	1m	AOC Cable	QSFP+ to 4SFP+	0-70℃
Q4S-AOC-2-CO	Up to 40G	2m	AOC Cable	QSFP+ to 4SFP+	0-70℃
Q4S-AOC-3-CO	Up to 40G	3m	AOC Cable	QSFP+ to 4SFP+	0-70℃
Q4S-AOC-5-CO	Up to 40G	5m	AOC Cable	QSFP+ to 4SFP+	0-70℃
Q4S-AOC-7-CO	Up to 40G	7m	AOC Cable	QSFP+ to 4SFP+	0-70℃
Q4S-AOC-10-CO	Up to 40G	10m	AOC Cable	QSFP+ to 4SFP+	0-70℃

QSFP to QSFP Active Optical Cables

 

QQ-AOC-X-CO series products are compatible for Cisco 40GBase QSFP+ AOC cable with direct-attach active optical 1-10 meter's solution. Fiberstore QSFP to QSFP copper direct-attach 40GBASE-CR4 cables are suitable for very short distances and offer a flexible way to connect within racks and across adjacent racks. Active optical cables are much thinner and lighter than copper cables, which makes cabling easier. AOCs enable efficient system airflow and have no EMI issues, which is critical in high-density racks. Fiberstore offers active optical cables in lengths of 1, 2, 3, 5, 7, 10, and 15 meters.

 

 

Part No.	Data Rate	Length	Wire AWG	Connector Type	Temp. Range
QQ-AOC-1-CO	Up to 40G	1m	Fiber	QSFP+ AOC	0-70℃
QQ-AOC-2-CO	Up to 40G	2m	Fiber	QSFP+ AOC	0-70℃
QQ-AOC-3-CO	Up to 40G	3m	Fiber	QSFP+ AOC	0-70℃
QQ-AOC-5-CO	Up to 40G	5m	Fiber	QSFP+ AOC	0-70℃
QQ-AOC-7-CO	Up to 40G	7m	Fiber	QSFP+ AOC	0-70℃
QQ-AOC-10-CO	Up to 40G	10m	Fiber	QSFP+ AOC	0-70℃
QQ-AOC-15-CO	Up to 40G	15m	Fiber	QSFP+ AOC	0-70℃

 

Fiberstore also offers customized service for "cable length".Today is the perfect time to buy with the 30% Saving.