Solutions for 40G Network Interconnection

With the migration of 40G Ethernet, it seems that Direct Attach Cable(DAC) is applied widely in the data center due to its high data rate and effective interconnection in the short time. Generally speaking, DAC consists of three types: passive copper cable, active copper cable and active optical cable. However, which one is the best solution for 40G network interconnection among of them? Well, different requirements, different solutions. This article will detailedly introduce it for us one by one from the perspectives of transmission distance, cost, power consumption, cooling function.

active copper cable

In most cases, the transmission distance, as the important part of DAC, is considered first at the process of selection about it. While in their comparisons from the view of transmission distance, there is no doubt that Active Optical Cable is dominant over the others. It’s known that passive copper cable is used for short distance, supporting 40G transmission up to 10m, while active copper cable, with optical module on the QSFP+ connector, and active optical cable, with optical transceiver on the connector,  is used for relatively longer transmission distance, respectively available for 40G transmission within 15 meters and up to 100 meters. 

Meanwhile, on the viewpoint of power consumption, it’s apparent that passive copper cable has advantage over them. On account that both of active copper cable and active optical cable have an active component to transmit/receive signal, it needs power to make its internal circuits work properly, in which the power consumption of active copper cable and active optical cable respectively is  440mW and over 2 W. While passive copper cable requires no power for internal electronics, which avoids consuming power or producing heat. Therefore, in such kind of situation, to some degree, the passive copper cable is the best choice among them for the data center. 

In addition, seen from their cooling effect, it seems that there is no way to tell apart. Apart from the power consumption, the cable size can also affect the cooling effect in the data center. Usually, the thinner the cable is, the better dispersion devices in data center will have. Among the three types of DACs, active optical cable is the thinnest, and active copper cable is thinner than passive cooper cable. But in spite of this, it doesn’t mean that active optical cable is the final choice. As mentioned above, AOC has the highest power consumption and active copper cable has lower power consumption, while passive copper cable requires no power. In the situation, it’s hard to make a decision.

Finally, with respect to the cost, it is clear that copper cable is much cheaper than optical cable. AOC, with optical transceiver on the connector is the most expensive one. If cost is not a problem, AOC will be strongly recommended, due to its best transmission performance. However, for many data centers, it’s hard to have an ideal situation like this. Most of the components in data center are expensive and require careful maintenance. Although passive copper cable is much cheaper than AOC, and in most cases, it cannot support 40G transmission in data center. While active copper cable is less expensive than AOC and can support longer transmission than passive copper cable. Therefore, comparatively speaking, active copper cables seems to be a good choice. 

All in all, for the application of passive copper cable, active optical cable and active copper cable in the 40G Ethernet, it depends on the practical and specific situations in the data center. As a result, if wanting to choose the best solution for it, it would be better to have a selection according to your practical requirements. After all, the most suitable is the best. Besides, Infiberone can also offer other professional suggestions for you freely. If you have any need, welcome to contact us any time.

Note: Infiberone is a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 

The Installation/Remove Guide About The QSFP+ Transceivers and DAC/AOC Cables

In the data center, it’s important to ensure the network to work stably and efficiently, in which the way of installing and removing the optic transceiver/cable plays a key role in it. While at the migration process from the 10G-40G-100G, to some extent, 40G Ethernet becomes more common in today’s data center, especially QSFP+ interfaces products, such as QSFP+ optical modules and DAC/AOC cables. Therefore, from the perspective of it, today, I want to share a guide to install/remove QSFP+ Transceivers and DAC/AOC Cables in 40G Network for you in this article.

To have a better control of the installation/remove way of QSFP+, it would be better to get its basic information first.

QSFP+(Quad Small Form-factor Pluggable Plus) is the most common 40GbE interface type, and also as a high-density 10GbE interface via QSFP+ breakout cables. It connects a network device (switch, router, media converter or similar device) to a fiber optic or copper cable, supporting data rates of 4×10 Gbps and supporting Ethernet, Optic Fibre Channel, Infiniband and SONET/SDH standards with different data rate options. Compared with CFP (C form-factor pluggable) transceiver modules, QSFP+ transceiver modules are more compact and more suitable for port-density application.

Of course, except for these information, you still need to pay attention to these notes before you take series of operations on it.

1. As QSFP+ transceivers and DAC/AOC cables are hot-pluggable, QSFP+ modules can be installed/removed in your switch without system powered off.

2. To protect a QSFP+ module or cable from ESD (electro-static discharge) damage, ESD wrist strap should be worn and is securely grounded before installing or removing a QSFP+ module or cable. Besides, if ESD gloves are worn, the wrist strap should be worn on the ESD gloves.

After knowing about it, the specific way of installation and remove about it is easier to get. The following is about the respective introduction about them.

1. Installation & Remove Of QSFP+ Transceiver Module

A. Installation Of QSFP+ Optical Transceiver:
Step 1. Removing the QSFP+ optical module from its antistatic container and removing the dust covers from the optical module connector.

Step 2. Removing rubber dust covers from the port where you install the QSFP+ optical module.

Step 3. Turning the clasp of the optical transceiver up. (Skip this step if the clasp is plastic.)

Step 4. Matching the module with the port in the chassis.

Step 5. Holding the module, and gently pushing it into the port until it is firmly settled in the port.

Step 6. Immediately attaching the patch cord with MPO connector or duplex LC connector to the QSFP+ optical transceiver.

B. Remove Of QSFP+ Optical Transceiver:
Step 1: Removing the optic fibers.

Step 2: Turning the clasp of the module down to the horizontal position. (Skip this step if the clasp is plastic.)

Step 3: Holding the module, gently pulling the module out of the port.

Step 4: Placing the QSFP+ optical transceiver into an antistatic bag.

2. Installation & Remove Of 40G QSFP+ DAC/AOC Cable

A. Installation Of 40G QSFP+ DAC/AOC Cable:

Step 1. Connecting the QSFP+ optical transceiver (with the clasp on the top) at one end of the cable with the port in the chassis.

Step 2. Horizontally and gently pushing the module into the port until it’s fully settled in the port.

B. Remove of 40G QSFP+ DAC/AOC Cable:
Step 1. Gently pressing and releasing the QSFP+ optical transceiver.

Step 2. Holding the cable, gently pulling the clasp on the cable to pull it out of the optical module.

In a word, a correct installation is essential to keep the stability and efficiency of network system. Infiberone can offer more guides about this aspect. If you want to know more, welcome to contact us any time.

Note: About us: We are a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability.

Comparison of Direct Attach Cable & Active Optical Cable

It’s known that Direct Attach Copper Cable(DAC) and Active Optical Cable (AOC) are now applied in the data center widely for short-distance interconnection due to their respective unique advantages. With the respect to them, usually, we may only get that they are two kinds of optical transceiver assemblies, terminated with transceiver-style plugs used in the same ports as optical transceivers used. However, except for these, as for their other information, such as advantages or disadvantages, or differences and so on, how much do you know? Now, this article will make a detailed comparison for them to introduce them to us.

Direct Attach Cable VS Active Optical Cable

When it comes to their differences, maybe we can get about  it from their designs and structures.

AOCs are active devices, incorporating active electric and optic components to transmit/receive signal via optic fiber. While DACs can be both passive and active. The passive DACs (often called PCCs) have no active circuitry, which means there is a direct connection between copper cable and optical transceiver’s printed circuit board (PCB) electrical contacts. Besides, the active DACs (often called ACCs) incorporate active component to transmit/receive signal via copper cable. The following figure shows the general internal structure of AOCs and DACs.
Due to different design and structure, naturally, they distinguish in advantages. The below is about the comparison of them.
Relatively speaking, AOC is with these strengths:

1. With higher bandwidth: Device upgrading is unnecessary, on account that it has a throughput of up to 40 Gbps with QSFP+.
2. EMI immunity—For the reason that the optic fibre is not able to conduct electric current,  AOC is immune to electromagnetic energy.
3.  Light in weight: Because of its material,  AOC weighs less than a comparable direct attach copper cable. Light in weight: Because of its material,  AOC weighs less than a comparable direct attach copper cable.

While DAC is with those benefits:

1. With interchangeability: DAC is interchangeable and hot swappable with fiber optic modules.
2. With higher data rate: DAC data rate, higher than traditional copper interfaces,  is available for various applications .
3. Cost effective: DAC is accorded with various protocols such as gigabit & 10G Ethernet, 8G FC, FCOE and Infiniband. It’s a cost effective solution over optical transceivers.

In addition, except for the differences in advantages, they differ in disadvantages.
In size and weight, compared with the AOC, DAC is heavier  and bulkier, making it difficult to be managed. While in cost, compared with DAC, the drawback of AOC may be more expensive for customers.

Above all is about the comparison between the DAC and AOC. If wanting to know more about it, welcome to contact us.

Note: We are a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability.

Essence Information About Active Optical Cable You Should Know

To meet the needs for the higher bandwidth, more optical components are soaring. While most people prefer to choose one with low cost and higher performance from the perspective of long-term development. Therefore, active optical cable (AOC) comes into sight. And it’s expected that it’s in great demands and in a good prospect. Now, this article will have a further exploration for it.

AOC is a kind of direct attached cable (DAC), available in 10G, 40G and even 120G, and usually used for short-range multi-lane data communication and interconnection applications. Generally speaking, the wire transmission of optical communication should belong to passive parts, but AOC is an exception. It’s made up of multimode optic fibers, optical transceivers, control chip and modules. By converting the electric to the optic on the cable ends, it improves speed and transmission performance of the cable without damaging the compatibility with standard electrical interfaces.

To some degree, it’s due to its unique design and structure that  brings it many advantages in many aspects.

In cost, compared with the optical transceiver, AOC is the more cost-effective solution for the data center.

Firstly, the optical transceivers terminated to the cable are cheaper than the optical transceivers due to that there are no lasers in the terminated transceivers (the lasers in the optical transceivers are very expensive).

In addition, the AOC eliminates the separable interface between transceiver module and fiber cable. That’s to say, the transceivers are permanently attached to the fiber cables and no patch cables are needed. While the optical transceivers need to be applied together with patch cords which may be expensive.

Furthermore, because there are no air holes between the optical transceivers and optic fibre cables, AOC can provide protection from environmental pollutants and other  troubles during its installation.

In weight and performance, Compared with direct attach copper cable for data transmission, AOC is lighter and with higher performance.

It is known that DAC is  heavy, bulky and requires significantly higher power, making it difficult to physically manage the data center. Besides, the nature of electrical signals, electromagnetic interference (EMI) also limits DAC’s performance and reliability. However, AOC provides lighter weight, smaller size, EMI immunity, lower interconnection loss, and also reduces the power requirements.

With so many benefits, AOC assembles are naturally applied in various applications, such as optical backplanes, rack-to-rack, shelf-to-shelf interconnection, storage, hubs, switches, routers, servers, etc. The detailed introduction is below:

• Infiniband QDR, DDR and SDR interconnections
• Data Aggregation, Backplane and Proprietary Density Applications
• PCI-Express, SAS/SATA, Fiber Channel compatible interconnect
• 40GBE and 10GBE interconnections
• 10G/40G Telecom connections
• Hubs, switches, routers, servers
• 10G/40GEthernet
• Data Centers
• High Performance Computing Clusters

All in all, as the rising star in the telecommunication industry, AOC apparently is  the best solution for high-performance computing and storage applications. Fortunately, Gigalight provides the AOC products, such as 10G SFP+ AOC, 40G QSFP+ AOC, 120G CXP AOC and so on. If you want to know more information about it, welcome to contact us.

Note: Gigalight is the head office of Infiberone.

An Effective Solution For Data Center Cabling

With the rapid development of data center, its cabling systems tend  to be more complex and series of problems also happens with it, such as high density cabling, higher power consumption and so on. It’s obviously unwise and uneconomical to build/expand a new location to solve these problems. However, how to deal with them? Now, this article introduces an effective solution to us—Direct Attach Cables.

Direct attach cable

Direct attach cable, DAC for short, is a form of high speed cable with optical transceivers on either end. They can be used to connect switches to routers or servers and be usually used in data center for short-distance transmission between racks.

Generally, according to the construction differences, the DAC comes in two types: passive DAC and active DAC.

Passive DAC are suitable for short distances up to 10 m, while  active DAC has a little longer transmission distance up to 15m at 10Gbps or 40Gbps, because it has an active component to transmit/receive signal. Passive DAC requires no power for internal electronics, which avoids consuming power or producing heat. While active DAC comes in reverse, it needs power to make its internal circuits work properly.

When it comes to the reason why DAC is introduced into data centers, it involves in two factors showing its superiorities.

For one thing, DAC has the potential to reduce the overall power consumption and heat dissipation, which help network operators save cost. We all know that denser equipment in the data center or server rooms will consume more electrical power and produce more heat, which means more cooling systems are required. While DAC is able to make it.

For another thing, DAC do not need patch panels or additional cables when connected to devices, as is the case with an optical module. The modules on both ends make them sturdy and reliable as well as space-saving.

In addition, DAC is cheaper than the regular optics. Because the “transceivers” on both ends of DACs are not real optics. Compared with the regular optics, they are without the real components and just used to transmit the optical signals. And of course, without those expensive optics components, the cost of DACs is much lower. Thus, though using the same port as an optical transceiver, DACs are cost-savings and power-saving in short reach applications.

Meanwhile, in today’s markets, in order to satisfy the growing needs for cost-effective delivery of more bandwidth, there are mainly three kinds of DAC according to the transmission rate: 10G SFP+ DAC, 40G QSFP+ DAC and 100G QSFP28 DAC.

10G SFP+ DAC offers the high density, low cost and low power solutions for today’s 10G Gigabit Ethernet connections. With its SFP+ interface, this twinax cable allows interconnects with hot-pluggable optical transceivers and Ethernet switches in data centers.

40G QSFP+ DAC offers a way for 40G Gigabit short distance connections between QSFP ports switches. As its name shows, 40G QSFP+ DAC has QSFP+ connectors on both ends. And it uses integrated duplex serial data links for bidirectional communication. 40G QSFP+ DAC is a little different from 10G SFP+ DAC. Because it has another two breakout forms: 40G QSFP+ to 4XSFP+ DAC and 40G QSFP+ to 4xXFP DAC. These breakout DACs can be used to migrate from 10G to 40G.

The 100G QSFP28 DACs are high speed cable to meet and exceed 100G Gigabit Ethernet, providing connectivity between devices using QSFP28 ports. The 100G QSFP28 DAC includes QSFP28 to QSFP28 and QSFP28 to 4xSFP28 breakout DAC. These interconnect cables provide four channels of high speed differential signals with data rates ranging from 25Gbps up to potentially 40Gbps.

Above all is about DAC. It seems that it provides a low power consumption and high-speed solution for data center interconnections. If you want to know more information about it, welcome to contact us!

About us: We are a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 

How to Choose QSFP28 Optical Transceiver For 100G Network?

On the migration road of data center from 10G-40G-100G, it’s known that cost-effective 100G optics are in great demand, especially QSFP28 optical transceivers with low cost optical design package tech, widely applied in data center, LAN, WAN, Ethernet switches. However, among these optic fibre modules, which one is the most suitable for our 100G Network? Well, this article will introduce how to choose it.

To some degree, the selection of 100G QSFP28 products depends on transmission distance. Therefore, it would be better to choose it from this perspective. While for different applications, there are different requirements for transmission distance. The below is about its specific conditions and feasible measures:

1. When transmission distance is 100m or under 100m, QSFP28 SR4 is highly recommended. The QSFP28 SR4 supports links of 70 m (OM3) and 100m (OM4) over multimode fiber with MPO connectors. It offers 4 independent transmitting and receiving channels, and each is with 25Gbps able to be aggregated into 100Gbps. Meanwhile, the QSFP28 SR4 optic module is also ideal for the connections from rack to rack in the data center.

2. When transmission distance is over 100m but under 10 km, QSFP28 LR4 is preferred. The QSFP28 LR4 is a fully integrated 4 × 25Gbit/s optical transceiver module, supporting distance up to 10 km. So for long span 100G deployment, such as cabling between two buildings, QSFP28 LR4 with duplex LC and single-mode fiber cable is the perfect option.

3. When transmission distance exceeds 10 km, QSFP28 ER4 is ideal for very long transmission distance. It provides superior performance for 100G Ethernet applications up to 30 km links and converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission.

Of course, the above solutions are just for the different transmission distance. While for the  same transmission distance, how to choose it? Maybe we can get the answer from the example of QSFP28 CWDM4 and QSFP28 PSM4.

QSFP28 CWDM4

QSFP28 PSM4

The CWDM4 provides a 100G Ethernet high-speed link with a maximum transmission distance of 2 km, which interfaces with LC duplex connectors, and uses Mux/Demux technologies with 4 lanes of 25Gbps optically multiplexed into and demultiplexed from duplex single-mode fiber. While PSM4 does not need a MUX/DEMUX for each laser but it does need either a directly modulated DFB laser (DML) or an external modulator for each fiber. Besides, with an MTP interface, PSM4 modules can transmit data at 100Gb/s from point to point over 2 km or can be divided into dual 50Gb/s or quad 25Gb/s links for linking to servers, storage and other subsystems.

It’s seen from that both of QSFP28 CWDM4 and QSFP28 PSM4 are designed to meet the requirement for intermediate or mid-reaches for datacenter applications (500 m to 2 km). And they both use WDM and parallel single mode fiber technologies and support transmission distance up to 2 km.

When faced with such a situation, maybe we can make a decision from the two aspects. For one thing, from the aspect of an inner transceiver module structure, by comparison , PSM4 can be more cost-effective due to its lower component costs. For another thing, from the infrastructure viewpoint, PSM4 would be more expensive when the link distance is long, because PSM4 uses 8 optical single-mode fibers while CWDM uses only 2 optical single-mode fibers.

Above all is about the solutions on choosing a appropriate optical transceiver for 100G network. Believing it will benefit us a lot. If you have other questions or want to know more information about this aspect, welcome to consult us any time, we must provide the most professional information for you in first time.

About us: We are a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 

A Better Choice for 100G Ethernet

With the requirements for  network speeds and bandwidth raised, 10G and 40G hasn’t been able to keep pace with it. Naturally, 100G comes into light, in which QSFP28 optical module offers a better choice for 100G Ethernet and becomes the universal data center form factor for 100G optical transmission. This article will have a brief introduction to it in these aspects.

To some degree, there is no doubt that QSFP28 transceiver has various advantages to make itself more popular than other 100G optic products. In order to deploy 100G Ethernet network better, QSFP28 optical transceiver with a strong improvement is designed to increase port density and decrease power consumption with a lower cost:

Higher Port Density: As we all know, the first generation of 100G transceiver is CFP, designed with a very large form factor. As for the next generation, CFP2 and CFP4, although their sizes are decreased a lot, and they are still larger than 40G QSFP+ optical transceiver. However, QSFP28 is published soon as the smallest 100G form factor transceiver with the same footprint and panel as QSFP+ transceiver. In general, with its high port density, we can install up to 36 QSFP28 on a 1RU switch on the front panel.

Lower Power Consumption: As for the general 100G optics, their power consumption ranges from 6W to 24W. In the contrast with these optics, QSFP28 transceiver transmits signals with the lowest power, less than 3.5 W. In short, QSFP28 transceiver is the most ideal solution for 100G transmission with the lowest power consumption at present.

Lower Cost: The deployment of 100G Ethernet network with QSFP28 transceiver can save a lot. For one thing, it can save considerable amount of money due  to higher port density and lower power consumption. For another thing, it is implemented with four lanes, increasing the transmission capacity of every lane from 10G to 25G, effectively decreasing costs for each bit. In addition, both of its electrical and optical lanes work at the same speed that eliminates the costly gearbox found in CFP, CFP2 and CPAK. Finally, its way of migrating to 100G Ethernet network is also superior, which can change from 10G-40G-100G to 10G-25G-100G or 10G-25G-50G-100G, much simplifying the cabling and saving the cost in data centers.

In addition, the QSFP+ has the same form factor and maximum number of ports with QSFP+, but the lane speeds are increased to 2.5X. Thus, by comparison, the QSFP28 increases front-panel density over QSFP+.

Even though these unique strengths make QSFP28 stand out from other optics, and if we want to make QSFP28 play effective role in the data center, reasonablely technical match is necessary and essential. Therefore, the following table lists the QSFP28 related components and the suggested applications

Seen from above all, it seems that QSFP28 optic fibre module is a better choice for 100G network. However, we still have to recognize the fact even QSFP28 has various advantages, and it just offers an alternative to 100G migration. For data center and server rooms, the suitable is the best. If you want to know more details about it, welcome to consult us at any time.

Do You Know These Essential Information About QSFP28?

It’s known that 100G Ethernet will be widely used in the communications in 2017. So naturally, products about it are paid more attention, such as QSFP28 series. QSFP28 series is a relatively popular one, designed for 100G data rate and including QSFP28 optical transceivers, QSFP28 AOC&DAC. However, except that, do you know these essential information about it? Maybe you will ask what I mean for these essential information. Well, you will get it after reading this article.

For QSFP28 optical module, except that it’s a hot-pluggable optical module designed for 100G data rate, it integrates 4 transmitting and 4 receiving channels. And “28” means each lane carries up to 28G data rate. Meanwhile it can do 4x25G/2x50G/1x100G connection.

Of course, these information is just some basic information about it. The below is what we really should focus on.

For one thing, for most switches, QSFP+ can work on the QSFP28 ports. As we all know that QSFP28 optic fiber transceiver has the same form factor as the QSFP optical transceiver. The former has just 4 electrical lanes used as a 4x10GbE and 4x25GbE, while the latter supports 40G ( 4x10G). This is the same case as that the SFP28 optical transceiver can be connected with SFP+ optical transceiver and runs at the lower 10G speed.

In addition, the 100G QSFP28 port also can generally take either a QSFP+ or QSFP28 optic fibre module. And when using the QSFP transceivers on QSFP28 port, both single-mode and multimode (SR/LR) optical transceivers and twinax/AOC options are available.

For another thing, in all cases, QSFP28 optical transceiver cannot be used on QSFP+ port. To some degree, SFP+ can’t auto-negotiate to support SFP module. Similarly, QSFP28 optical modules can not be used on the QSFP port, either. Besides, there is the rule about mixing optical transceivers with different speed: both ends of the two optical modules and form factor have to be connected.

Finally, in the aspect of  its applications, we have to realize the fact ,currently, the QSFP28 optical transceiver in the market can only support up to 10 km (QSFP28 100GBASE-LR4) with WDM technology. While for applications beyond 10km, it cannot reach it. After all 100G technology and relevant optical module are still under development even if it’s widely used in the market.

In a word, although QSFP+ modules can be used on the QSFP28 ports, and it cannot transmit 100Gbps on the QSFP+ port and still have some limitation in transmission distance. If you want to know more about it, welcome to contact us at any time.

Things You Should Know About SFP28 25GE-LR Optical Transceiver

To follow the steps of the next generation of 25GE data centers, 25G SFP28 series products have been produced  in recent two years ,including SFP28 SR,SFP28 LR,SFP28 AOC/DAC, in which advanced technology ,reliable quality and competitive cost fully reflect Infiberone’s strengths and determinations on the layout of 25G data center. Today, let’s look at one of the most popular ones, SFP28 LR, together.

SFP28 25GE-LR is single-Channel, Pluggable for 25 Gigabit Ethernet and Infiniband EDR Applications. It is a high-performance optical module for short-range data communication and interconnecting applications, operated at 25.78125 Gbps up to 10km. In addition, it’s designed to operate over single-mode fiber systems using a nominal wavelength of 1310nm. Its optical interface uses duplex LC receptacle. Meanwhile, it incorporates Gigalight Technologies proven circuit and technology to provide reliable, long working life, high performance, and consistent service. 

In applications, SFP28 25GE-LR optic transceiver is suitable for 25GbE Ethernet switches, routers, network interface cards (NICs) and storage networking equipment, also used for big data analytics, parallel computing, 3D Render, Live Video and Searching business. In advantages, it offers the most powerful and efficient way to meet the growing needs of the next-generation data center. To some degree,  SFP28 25GE-LR optical transceiver provides smooth and cost-effective solution to future data center.

In addition, compared with 40GbE connectivity, 25GbE requires just one lane (four with 40GbE) but meets the requirements of superior switch port density, lower costs and lower power dissipation. Therefore, 25GE is good choice as next step after 10GE for SMF and MMF transceivers.

Above all is about the essential information of SFP28 25GE-LR. We can learn SFP28 25GE-LR is with many advantages, such as high performance, low power dissipation and low-cost, which plays a key role in the development of 100G Network. If you want to know more details about 25G SFP28 series products, welcome to contact us any time.

Note: Gigalight  focuses on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability.