What Is SFP Cable And How Is It Used?

7. february 2018 at 10:47
SFP cable, also known as 10G SFP+ cable, SFP+ DAC twinax cable or SFP+ AOC cable, is a form of high speed cable with Small Form Factor Pluggable Plus on either end. They are suitable for in-rack connections between servers and switches. SFP cable's popularity can be attributed to that Cat5e copper cabling and 1000BASE-T have dominated data center interconnection application for years, however, the upgrading to 10GE, 40GE and beyond poses a significant hindrance in both power consumption and cost. At this point, 10G SFP+ direct attach copper swoops in and becomes a new favor of Top of rack switching.
10G SFP cable
What Is SFP Cable?
SFP cable which replaces two optical modules and a connectorized optical fiber with a twinaxial copper cable assembly offers the higher density, lower cost, and lower power 10 Gigabit Ethernet solution than other cable types such as 10GBASE-CX4 and CAT6/CAT6A 10GBASE-T. The SFP cables can be classified to 10G SFP+ DAC cable and 10G SFP+ AOC cable. SFP+ AOC features longer transmission distances(>100m), isolation from signal interference and crosstalk and higher signal transmission capacities but it's more expensive than SFP+ DAC. SFP+ DAC consists of active DAC and passive DAC. Passive DAC cables have no signal amplification built into the cable assembly hence for ultra short reach(<5m), whereas active DAC cables have signal amplification and equalization built into the cable assembly for a litter longer reach(5-15m) in the same time with a higher price.
10G SFP DAC vs AOC
SFP Cable: 10G SFP+ Cable vs. 25G SFP28 Cable
We've already known that SFP+ is made to operate at 10Gb/s. And SFP28, as the enhanced version of SFP+, is designed for 25G signal transmission. SFP28 utilizes the same familiar form factor as SFP+, but the electrical interface is upgraded to handle 25Gbps per lane. To put it simply, 10G SFP+ cable and 25G SFP28 cable just has the same form factor but with different speed. What's more, 25G SFP ports can support a full range of 10G SFP+, which means 10G SFP+ cable can be plugged into 25G SFP ports.
How SFP Cable Is Used?
As 10G network is widely deployed in today's data center, 10G SFP cables are commonly used in interconnect applications below 100m, such as server to switch or storage to switch interconnection in the same rack (Shown in the below picture). And now 25GbE is popular and 25G direct attach cable assemblies, such as SFP28 DACs, are already available in the market. For 40GbE, 40G QSFP+ DACs and AOCs are used. Of course, higher speed and more bandwidth are needed for spine switches. Thus, 100G DACs, like QSFP28 DACs are used in this case.
sfp cable application
Conclusion
With the convenience of plug and play technology, FS.COM's family of 10G SFP cable delivers throughput that exceeds those of industry standards. Besides, they also offer a variety of high speed interconnect DAC assemblies including 40G/56G QSFP+ cable, and 100G QSFP28 cables to satisfy the demands from 10G to 100G interconnection. All of direct attach copper cables can meet the ever growing need to cost-effectively deliver more bandwidth, and can be customized to meet different requirements.
 

An Analysis On Optical Module Market

12. january 2018 at 7:58
An optical module is a single, packaged form factor that works as a transmitter and receiver. An optical transceiver is used in an optical network to convert electrical signals to optical signals and vice versa. Optical modules are widely deployed in optical networking for broadband. While optical module market is driven by the use of broadband in every field. Global adoption of the Internet is driving rapid growth of the data center and the need for very high speed network transmission. Optical transceivers are given full play to upgrade telecommunications networks and launch very large data centers. What's the future of optical module market? Will it still thrive? You may get a clue in this article.
optical module
Next Year Is Going To Be Huge For 100GbE
According to IHS Infonetics (NYSE: IHS), the long-awaited ramping up of 100 Gigabit Ethernet (100GbE) optical modules in data center applications may finally be forthcoming. Sales of 40G and 10G optical modules still remain the mainstream in the interim, uncovered by the market research firm in its biannual "10G/40G/100G Data Center Optics" report. As the figure shown below, higher bandwidth and server virtualization calls for higher data rate. The market for 100G data center optics is accelerating, but it has yet to be challenged by widespread data center deployment in the way 40G QSFP optics have. This will change dramatically in the next few year as cheap 100G silicon reaches production and QSFP28 shipments surge as a result," Schmitt said. "Next year is going to be huge for 100GbE."
Server Virtualization Drives Higher Data Rates
Server Virtualization Drives Higher Data Rates. Source: Dell'Oro. 07/ 2012
The global optical module market increased from from $3.2 billion in 2013 up to $4.6 billion in 2015, and this dramatic increase is anticipated to grow to $41.1 billion by 2022 driven by the availability and cost effectiveness of 100G, and 400G modules. Next generation optical transceiver devices use less power, are less expensive, and are smarter and smaller. The adoption of widespread use of the 100 Gbps devices, followed by 400 Gbps devices and the vast increases in Internet traffic are vital to helping manage change in the communications infrastructure markets.
Global Industry Analysis
Geographically, North America is seen as the most active optical module market due to rising demand for communication network. In addition, the rising deployment of 100G optical modules for high speed networks is another factor contributing to high demand for optical transceivers. Europe seconds North America in terms of demand for optical transceivers. Moreover, the combined use of 40G and 100G modules in Europe and North America is expected to show steady growth in demand for optical modules in near future. In Asia-Pacific, China is expected to be the fastest growing market for fiber optic transceivers owing to its increasing demand for deployment of 100G equipment. In North America, JDS Uniphase Corporation, Oclaro Inc., Finisar Corporation, Cisco Systems, Alcatel-Lucent and others are the main manufacturers of optical modules. In Asia-Pacific, Avago Technologies, Wuhan Telecommunications Devices Co. Ltd and FS.COM are some of the leading manufacturers of optical transceivers.
Last But Not Least
Optical modules are deployed to update the communication networks and data center networks for efficient traffic management with higher speeds. Optical networks are the backbone for mobile communication network. With growing demand for reliable and high speed mobile communication, optical transceivers are increasingly being used for the communication network infrastructure and be bound to thrive in optical network. There are numerous optical transceiver modules available in the market differing in the type of data transmission speed, connections and packing forms. Some of the types of optical transceivers available in the market include SFP module, SFP+, X2, XFP, Xenpak, GBIC and others. Furthermore, as per the type of connection, there are single mode (SM), multi-mode (MM) and Wavelength Division Multiplexing (WDM) modules. If you need any of the above type, feel free to contact via sales@fs.com.

How Much Do You Know About Gigabit Ethernet Switch?

10. january 2018 at 8:00
In computer networking, an Ethernet switch connects multiple devices, such as computers, servers, or game systems, to a Local Area Network (LAN). Small business and home offices often use an Ethernet switch to allow more than one device to share a broadband Internet connection. A gigabit Ethernet switch operates in the same way, only differentiating in data rates. Gigabit Ethernet is much greater than standard or Fast Ethernet. People can use these switches to quickly transfer data between devices in a network, or to download from the Internet at very high speeds. Gigabit Ethernet transmits at approximately one gigabit per second. That is at speeds nearly 10 times those of Fast Ethernet, which transfers data at approximately 10 megabits per second. The gigabit Ethernet switch is designed to work at these increased speeds, without signal loss or transfer rate reduction.
Gigabit Ethernet Switch
Gigabit Ethernet Switch: Managed or Unmanaged?
Gigabit Ethernet switches are either managed or unmanaged. Usually an unmanaged switch is referred as a "dumb switch", which can be easily operated by every noob. It behaves like a "plug and play" device. A basic unmanaged gigabit Ethernet switch has no user configuration. It is placed in the network with the cables plugged in and the unit turned on, and there is nothing else to do. In contrast, a mangaed gigabit switch can be configured, and can be monitored and adjusted at your discretion, such as adjust speeds, combine users in subgroups, monitor traffic and report network activity. Although a managed switch is typically more expensive than an unmanaged switch, but it offer much greater flexibility.

Gigabit Ethernet Switch or Ethernet Hub?
Although an Ethernet switch is sometimes called a hub, because a switch performs the same job as a hub, there is a huge difference between a true hub and a gigabit Ethernet switch. An Ethernet hub is a device that connects multiple Ethernet devices to a single network. A hub does not gather information and input in one port results as an output in all ports on the network. While a gigabit switch is considered as a more intelligent hub, because it gathers information about the data packets it receives and forwards it to only the network that it was intended for.

Gigabit Ethernet Switch Recommendations
A gigabit Ethernet switch can be an inexpensive and easy way to expand your network in your home or small business. After probing into some parameters like brand, popularity, reviews and performance, here is a list of network switches including Ethernet switches for home, port gigabit Ethernet switches, cost-effective gigabit switches etc.
FS.COM S1130-8T2F 8-Port Gigabit PoE+ Managed SwitchNETGEAR GS116Ev2 16-Port Gigabit Smart Managed Plus SwitchCisco SG 300-20 (SRW2016-K9-NA) 20-Port Switch
Dimensions11 x 8.3x1.7 in16.9 x 6.6 x 2.8 in17.32 x 7.97 x 1.75 in
Ethernet Ports81620
Switching Capacity20Gbps32Gbps40Gbps
PoE StandardCompliant with IEEE802.3af/at××
Enclosure TypeRack mount - 1UDesktopDesktop, Rack-mount - 1U
Power consumption15.4W10W16.26W
Price$159.00$156.88$184.95
Conclusion
A gigabit Ethernet switch enables devices like computers and printers to connect directly to the internet instead of relying on Wi-Fi. It can speed up data transfers, resulting in faster response times and better frame rates. Additionally, a gigabit switch expands network capacity via the extra ports. Some Ethernet switches with different ports are recommended for your reference, such as FS.COM 8-port PoE switch, NETGEAR 16-port smart managed switch and Cisco 20-Port Ethernet Switch. If you need any 24 Port gigabit switch and 48 Port gigabit switch, or any equipment related to your network,visit www.fs.com for help.
 


8-Port Ethernet Switch Best Buy

26. december 2017 at 7:45
With the development of smart home and small and medium-sized businesses (SMBs), there is a growing number of PoE devices like IP cameras, VoIP phone, wireless access points (WAP), IoT devices being used. Therefore, Ethernet switches are required to be able to support numbers of PoE installations. For SMBs or large enterprises with many network devices, they may consider 24-port PoE managed switch or 48-port managed PoE switch. For small home use, 8 port PoE gigabit switch managed would be enough. This post will recommend some cost-effective 8-port Giagbit PoE switch for your reference.
NETGEAR GSS108EPP 8-Port Gigabit PoE+ Smart Managed Click Switch
NETGEAR GSS108EPP 8-Port Gigabit PoE+ Smart Managed Click Switch features innovative click mount for vertical, horizontal, flat of perpendicular mounting capabilities. It is a 8-port Gigabit Ethernet switch with 4 PoE+ ports (802.3af and 802.3at) providing up to 30w per port with 47w total PoE power budget and 4 non-PoE ports for flexible deployment. It's greatest highlight is simple installation and silent operation. To install, just mount the bracket onto a wall, desk, table leg/pole or Virtually AnywhereTM, and "Click" the switch into the bracket. The price is about $149.99. Its specification is as followed:
CategorySmart Managed Plus
Number of Users1-50
Target ApplicationsVoIP, Video Surveillance, Wireless, IoT
Copper Ports8 x 1G
PoE (PoE+) Ports4 (4)
PoE Budget47w
VLANs/QoS
SecurityAuto DoS prevention
Routingn/a
Form FactorClick Mount
TP-LINK TL-SG1008PE 8-Port Giagbit PoE Switch
TP-LINK TL-SG1008PE is a 8-ports 10/100/1000Base-T gigabit Ethernet unmanaged switch. It has 8 PoE+ (RJ45) ports, and supports PoE+ IEEE 802.3af/at compliant devices with total power budget of 124w and up to 30w per port. It also supports IEEE 802.3x flow control for full duplex mode and backpressure for half duplex mode, internal power supply. Moreover, with innovative energy-efficient technology, the TL-SG1008PE can save up to 75% of the power consumption. The price is about $149.99. Its specification is as followed:
Interface8 10/100/1000Mbps RJ45 Ports AUTO Negotiation/AUTO MDI/MDIX
Power Supply124W
Backbound BandwidthVoIP, Video Surveillance, Wireless, IoT
Fan Quantity1
Transfer MethodStore-And-Forward
Consumption9.5 watts (max. no PD connected) 140.1 watts (max. with 124w PD connected)
FS.COM S1130-8T2F 8-Port Gigabit PoE+ Managed Switch
S1130-8T2F managed PoE+ switch comes with 8x 10/100/1000Base-T RJ45 Ethernet ports, 1x console port, and 2x gigabit SFP slots. It can supply power to network equipment such as weather-proof IP cameras with windshield wiper and heater, high-performance AP and IP telephone. This managed PoE+ switch are highly flexible, the transmission distance of the SFP fiber port can be up to 120km, and with high resistance to electromagnetic interference. It also features superior performance in stability, environmental adaptability and fanless design. The price is about $159.00. Its specification is as followed:
Switch ClassLayer2+
Switching Capacity20Gbps
Forwarding Rate14.88Mpps
Power Consumption Per PoE PortMax. 30W
VLANsUp to 4K
Max. Power Consumption130W
Web Management InterfaceSupported
Power SupplyInput 100-240VAC, 50-60Hz
8-Port Gigabit PoE+ Managed Switch
Conclusion
From the above 8 Port Ethernet switch recommendations, we can see the three switches share both similarities and difference. All of them support PoE function and are compliant with IEEE 802.3af/at. All can be used in home and small office applications. But their maximum power consumption are different. FS.COM S1130-8T2F 8-port Giagbit PoE switch has the largest max power consumption. As for which to choose, it largely depends on your specific requirements. If you need to use PoE devices with larger power consumption and a decent price, FS.COM S1130-8T2F 8-port PoE managed switch is a better option.

SFP-10G-SR vs. SFP-10G-SR-S

13. december 2017 at 3:26
SFP-10G-SR is a popular 10G SFP+ optical transceiver in terms of quantity used. It is considered as the mainstream form factor of the 2017 market due to its matured technology and reduced price, even although 40G/100G optical modules are on the very top trend for enterprise and data center for the interconnection. But two years ago, Cisco introduced S-class optics such as SFP-10G-SR-S for enterprise and data center applications. For some web searchers, he will be recommended with SFP-10G-SR-S rather than SFP-10G-SR. But they almost share the same characteristics, so SFP-10G-SR vs. SFP-10G-SR-S, why choose one over the other? Hope this post may give some clue.

SFP-10G-SR vs. SFP-10G-SR-S: Similarity
Seemingly and technically, they don't have much difference. SFP-10G-SR-S shares the same product specification with SFP-10G-SR. SFP-10G-SR is compliant with 10GBASE-SR standard. The Cisco 10GBASE-SR module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber, up to 300m link lengths over OM3 and 400m link lengths over OM4 cables.
10g-sfp-sr-
Cisco SFP-10G-SR transceiver is hot-swappable input/output device which allows a 10 Gigabit Ethernet port to link with a fiber optic network. Because it is hot-swappable and MSA compliant, the Cisco SFP-10G-SR transceiver can be plugged directly into any Cisco SFP+ based transceiver port, without the need to power down the host network system. This capability makes moves, add-ons and exchanges quick and painless.

SFP-10G-SR vs. SFP-10G-SR-S: Difference
According to Cisco, S-class optics are intended for enterprise and data center 10G and 40G applications This new set of optics does not display several unnecessary features for these applications, bringing about a more attractive price. That explains why SFP-10G-SR-S price is lower than SFP-10G-SR price.

Except the price, there are some other differences. SFP-10G-SR-S optics aren't TAA certified. However, the non-S-class optics such as SFP-10G-SR are all compliant to TAA. SFP-10G-SR-S optics only have COM (Commercial temperature range: 0~70℃). However, the temperature range of SFP-10G-SR can be EXT (Extended temperature range: -5~85℃), IND (Industrial temperature range: -40~85℃) and Storage temperature range (-40~85℃). In terms of protocols, SFP-10G-SR-S optics use Ethernet only, they cannot use OTN (Optical Transport Network) or WAN-PHY (Wide Area Network Physics). Furthermore, SFP-10G-SR-S optics just have 10G and 40G applications so far which is specified for 10G and 40G enterprise and data center. Thus, if you don't need any special features like extra tolerance for temperature, S-Class optics can save you a considerable amount of money.

SFP-10G-SR Price Comparison
Since equipment SFP-10G-SR vendors all rely on MSAs when designing their transceivers, every supplier can produce the transceiver modules with the same functions but with different prices. Unless you have a 100% requirement to buy Cisco, there are a lot of 3rd party compatible vendors out there that you can save a lot of money by using. Here is a price list from different vendors for you to choose from.
VendorModelBrandPrice
CDWSFP-10G-SRCisco$693.99
Router-SwitchSFP-10G-SRCisco$262.00
MonopriceSFP-10G-SRIronlink$136.75
10GtekSFP-10G-SR10Gtek$41.05
FS.COMSFP-10G-SRFS.COM$16.00
Conclusion
Although SFP-10G-SR vs. SFP-10G-SR-S, they share identical specification, there still are some minor difference. In most cases, SFP-10G-SR-S optics are recommended for 10G and 40G applications due to its low cost.both SFP-10G-SR price and SFP-10G-SR-S price is relatively lower according to the above chart, and they also enjoy good quality. If you need any third-party optical modules or fiber optic cables, give FS.COM a shot.

Armoured Cable vs. Unarmoured Cable: What's The Difference?

7. december 2017 at 4:43
With the rapid development of optical communication, more and more fiber optic cables are increasingly used in different environments. What if under harsh conditions? Then it's crucial to ensure your cables smooth and reliable operation when transmitting data. This is where armoured cable comes into play. An armoured cable, as its name suggests, is protected against mechanical damage, whereas an unarmoured cable not being protected. What is the difference between them? And why should we choose armored cable over unarmoured cable? You my find answer in this post.

Amoured Cable Overview
Armoured cable has an extra layer of protection to keep it from being cut or abraded. The armor layer of coax cable is a foil wrap that is ribbed like corrugated metal to allow for flexibility, around the inside and outside of that wrap is a flooding compound to keep moisture from penetrating the cable and causing an impairment. The internal structure of 4 core armoured cable consists of many layers to prevent the cable from damage. The outer jacket provides protection against rodent, abrasion and twist, which is usually made of plastic. And the armoring materials are mainly come from kevlar, steel, and aluminum foils, aiming to protect the armored cable from being stretched during installation.
structure-of-armored-cable
Difference Between Armoured Cable And Unarmoured Cable
Structure
Many people may think that armoured cable just has metal protection. To be precise, the armoring material doesn't have to be metal, it can be fiber yarn, glass yarn, polyethylene etc. The only thing that makes armored cable different from unarmored cable is that the former has an additional outer protective layer for optical cable. The 4 core armoured cable tends to be more expensive than unarmored cable, while the armoured cable with steel strip and aluminum is much cheaper than armored fiber cable with Kevlar, which is usually used for special occasions.
Difference-between-Armored-Non-Armored-Cable
Application
Armoured cable is installed in locations exposed to mechanical damage, such as on the outsides of walls, as an alternative to conduit. Armoured cable usually has a small metal ribbon to ensure electrical continuity of the safety ground. (You must run a separate ground wire in flexible conduit too; you can't depend on the continuity of the conduit.) In HT & LT distribution, 4 core armoured cable is preferred. Inside walls and in other protected locations, less expensive unarmored electrical cable can be installed instead. Unarmoured cable is mainly used for control systems.

Why Should Use Armoured Cable Over Unarmoured Cable?
There are a couple of reasons that armoured cable should be used. The biggest reason is about strength, because armored cable was used more extensively in past decades when cable was simply directly buried under dirt and not used through a conduit. Nowadays most local municipalities require conduits to be trenched in prior to installing network components, thus eliminating the need for unarmored cable in most applications. Secondly, rodents or animals can and will chew through cables so the armor protects the cables from damage by animal or shoveling in direct bury applications. Thirdly, the most uncommon reason it would be used is in an RF environment that has an off air RF signal that is powerful enough to interfere with your network, the armor when grounded can provide another layer of RF protection.

Conclusion
Armoured cable can be regarded as a kind of strengthened cable, which is harder and stronger than standard optical cable. With an unparalleled protection against physical damage without sacrificing flexibility or functionality within fiber networks, 4 core armored cable is a perfect addition to any fiber network in hazardous environments.

Single Mode Fiber Jumper VS. Multimode Fiber Jumper : How to Choose?

29. november 2017 at 7:09
Fiber jumper, sometimes called fiber patch cord or fiber optic cable is a length of fiber cabling fitted with LC, SC, MTRJ or ST connectors at each end. The LC connector is most commonly used. Fiber jumpers also have different varieties. You can choose one type of connector on one end and another type on the other. Fiber jumpers are designed to interconnect or cross connect fiber networks within structured cabling systems. Fiber patch cable can be divided into single mode fiber jumper and multimode fiber jumper. Then how should I choose one over the other? I hope this post may give you some clue.
About Single Mode Fiber Jumper
Single mode fiber jumper (SMF) is a single stand of glass fiber with a diameter of 8 to 10 microns that has one mode of transmission. Single mode fiber has a relatively narrow diameter, through which only one mode will transmit typically 1310nm or 1550nm. Single mode fiber jumper carries higher bandwidth than multimode fiber, but requires a light source with a narrow spectral width. OS1 and OS2 are standard single-mode optical fiber used with wavelengths 1310 nm and 1550 nm (size 9/125 µm) with a maximum attenuation of 1 dB/km (OS1) and 0.4 dB/km (OS2). OS1 is defined in ISO/IEC 11801 and OS2 is defined in ISO/IEC 24702. Most single mode patch cabling is color-coded yellow.
OS2 9 125 LC-SC Singlemode Fiber Optic Cable
Figure 1: OS2 9/125 LC-SC Single mode fiber jumper
About Multimode Fiber Jumper
Multi-mode fiber jumpers (MMF) are described by the diameters of their core and cladding. There are two different core sizes of multi-mode fiber patch cords: 50 microns and 62.5 microns. Both 62.5 microns and 50 microns patch cable feature the same glass cladding diameter of 125 microns. Multimode fiber optic cables can be divided into OM1 (62.5/125µm), OM2 (50/125µm), OM3, and OM4 based on the types of multimode fiber. OM1 and OM2 fiber belong to traditional multimode fiber patch cable. Now commonly used are 50/125µm multimode patch cables like OM3 patch cable and OM4 fiber, which provides sufficient bandwidth to support 10 Gigabit Ethernet up to 300 meters. And now OM5 wideband multimode fiber has been released this year to support at least four low-cost wavelengths in the 850-950 nm range and transmit 40 Gb/s and 100 Gb/s and reduced fiber counts for higher speeds. Multimode patch cables are generally color-coded orange or aqua.
OM4
Figure 2: OM4 patch cable
Single Mode Fiber Jumper VS. Multimode Fiber Jumper: What's the Difference?
Multimode and singlemode fiber patch cords are different mainly because they have different sizes of cores, which carry light to transmit data. Single mode fiber jumpers have a core of 8 to 10 microns. Multimode fiber jumper allows multiple beams of light passing through, while singlemode fiber cable allows a single beam of light passing through. Single-mode fiber gives you a higher transmission rate and up to 50 times more distance than multimode, but it also costs more. Multimode fiber gives you high bandwidth at high speeds over short distances. Because in long cable runs, multiple paths of light can cause signal distortion at the receiving end, resulting in an unclear and incomplete data transmission.
single-mode-vs-multimode-FIBERS
Figure 3: Technical difference between single-mode and multi-mode cable
Single Mode Fiber Jumper VS. Multimode Fiber Jumper : How to Choose?
Many people may be confused when facing the two kinds of jumpers. Which one should I choose? This is based on transmission distance, application as well as the overall budget allowed. Multimode fiber jumper will allow transmission distances of up to about 10 miles and will allow the use of relatively inexpensive fiber optic transmitters and receivers. They are typically used for data and audio/visual applications in local-area networks and connections within buildings or remote office in close proximity to one another. Single mode fiber jumper on the other hand will be useful for distances over 10 miles but will require the use of single mode transmitters which are far more expensive than multimode equipment. They are usually used for connections over large areas, such as college campuses and remote offices. They have a higher bandwidth than Multi-mode patch cables to deliver up to twice the throughput.
Summary
Fiber optic patch cords are designed to interconnect or cross connect fiber networks within structured cabling systems. Typical fiber connector interfaces are SC, ST, and LC in either multimode or singlemode applications. Whether to choose a singlemode or multimode fiber patch cable, it all depends on applications that you need, transmission distance to be covered as well as the overall budget allowed. And if you still don't know how to choose the right fiber jumpers, you can refer to 6 Steps Help to Choose Right Fiber Optic Patch Cable.

Introduction To 10GBASE-T SFP+ Transceiver From Different Manufactures

22. november 2017 at 4:38
10GBASE-T is an Ethernet specification using a copper twisted pair connection (Cat6a or Cat7) with an effective bandwidth of 10 Gbit/s and a maximum transmission distance of up to 100 meters. Compared with other 10G optical modules, the 10GBASE-T SFP+ copper RJ45 transceiver has stable performance, you can take full advantage of the existing copper cabling. It's now becoming a hot option for equipment designers and data center professionals in building their network solution. Thus, there are many manufactures providing 10GBASE-T SFP+ transceivers, like HPE 10GBASE-T SFP+ transceiver, Cisco 10GBASE-T SFP and also FS.COM 10GBASE-T SFP+ copper transceiver. This post will introduce the characteristics of 10GBASE-T SFP+ transceiver of different manufactures respectively, and then you can choose what you want according to your budget.

HPE 10GBASE-T SFP+ Transceiver
According to HPE product specification, the HPE 10GBASE-T SFP+ Transceiver can convert a 10 Gb SFP+ port on an Hewlett Packard Enterprise switch to a 10GBase-T connection. It is specifically designed for high speed communication links that require 10 Gigabit Ethernet over Cat 6a/7 cable. This SFP+ transceiver offers 10 Gb/s communication over RJ45 copper cables. Its specification is shown as follows:
Ports10GbE SFP+ port; Duplex: full onlyInterfaceRJ45
Weight0.04 lb, fully loadedOperating temperature 32℉- 158℉(0℃-70℃)
Operating relative humidity5%-95%, noncondensingAltitude Up to 10,000 ft
Power consumption maximum2.5WCable typeCat6a/7 cable
Maximum distance30 mFiber type Copper
HPE 10GBASE-T SFP+ Transceiver
Cisco 10GBASE-T SFP+ Transceiver
The Cisco 10GBASE-T SFP is hot-swappable input/output device which allows a 10 Gigabit Ethernet port to link with a fiber optic network. Because it is hot-swappable and MSA compliant, the Cisco 10GBASE-T SFP+ copper transceiver can be plugged directly into any Cisco SFP+ based transceiver port, without the need to power down the host network system. This capability makes moves, add-ons and exchanges quick and painless. The specification of 10GBASE-T Cisco copper transceiver is as follows:
Cisco genuineSFP-10G-T-SForm typeSFP+
Max data rate10.3125GbpsMax transmission distance 30 m
InterfaceRJ45Cable type Cat6a/cat7
DOM supportNoOperating temperature32℉- 158℉(0℃-70℃)
FS.COM 10GBASE-T SFP+ Transceiver
The 10GBASE-T copper SFP+ transceiver FS.COM offered can convert a 10GbE SFP+ port on a switch or NIC (network interface card) to a 10GBASE-T RJ45 connection, allowing 10G bandwidth over existing copper infrastructure instead of changing to new fiber network equipment. It supports links up to 30 m over Cat6a/7 cable. Compared with an embedded 10GBASE-T RJ45 port for link distances up to 30 m, this module has been optimized to save more than 0.5 W per port. Its details are shown as follows:
Part numberSFP-10G-TForm typeSFP+
Data rate10Gbps, 5Gbps, 2.5Gbps, 1000MbpsCable distance Up to 100m*
Power consumption2.5WInterface RJ45
DOM supportNoOperating temperature32℉- 158℉(0℃-70℃)
*Note: 30 meters via 10Gbps, 50 meters via 5Gbps and 2.5Gbps, 100 meters via 1000Mbps.
Cisco sfp-10g-t-s compatible 10gbase-t sfp+
Conclusion
According to aforementioned, no matter HPE 10GBASE-T SFP+ transceiver, Cisco 10GBASE-T SFP+ or FS.COM 10GBASE-T SFP+ copper transceiver all share similar characteristics, like maximum power consumption, form type, interface, operating temperature and so on. But there is one thing that must differ, that is price. HPE 10GBASE-T SFP+ transceiver is charged $685.99 on official online store, Cisco Compatible 10 Gigabit RJ45 Copper SFP+ Prolabs transceiver module is about $395 on ebay and 10Gtek charges that for $339.99, while FS.COM 10GBASE-T SFP+ copper transceiver only costs $280, which is much lower.

FS.COM now provides compatible 10GBASE-T copper SFP+ transceivers as a new optional solution for your network architecture. Customized service is available for a specific brand compatible copper SFP+ module to your requirements. You can check all the 10GBase-t SFP+ transceiver on its official website.

10GBASE-T SFP+ Copper Transceiver: A New Option For 10GbE Network

16. november 2017 at 10:28
10GBASE-T SFP+ transceiver is specifically designed for high speed communication links that require 10 Gigabit Ethernet over copper cable (Cat 6a/7 cable). 10GBASE-T SFP+ copper transceiver is the first SFP+ transceiver that offers 10 Gb/s communication over this type of media. Compared with other 10GbE optical modules, the 10GBASE-T copper SFP+ transceiver has stable performance, you can take full advantage of the existing copper cabling. The following post will briefly introduce some related information about 10GBASE-T SFP+ transceiver.

Basic Introduction to 10GBASE-T SFP+ Copper Transceiver
10GBASE-T SFP+ copper transceiver has high performance, good reliability and is a cost-effective I/O solution for 10G Ethernet and 10G Fibre Channel applications. SFP+ 10GBASE-T copper transceiver is mainly used in Cat 6a or Cat 7 copper cabling system for 10G transmission with a maximum distance up to 100m. In addition, compared with SFP+ DAC, 10GBASE-T copper SFP+ transceiver can save at least 0.5W power consumption, and its port can both support STP (shielded twisted pair) and UTP (unshielded twisted pair). Therefore 10GBASE-T SFP+ transceiver is becoming more and more popular in network switches and servers because of its lower power consumption and pay-as-you-grow flexibility.

10GBASE-T SFP+ Copper Transceiver Vs. SFP+ Optical Transceiver Vs. SFP+ DAC
SFP+ DAC, SFP+ optical transceiver and 10GBASE-T SFP+ copper transceiver are three common components used in 10G connections. The following chart reveals the differences between them.
10GBASE-T SFP+ Copper Transceiver Vs. SFP+ Optical Transceiver Vs. SFP+ DAC
Form the figure, we can see that each option has its advantages, but 10GBASE-T's compatibility with existing structured cabling devices and existing low-speed devices makes it uniquely suited for widespread deployment. These features, combined with superior cost and achievable features, make the simplest path of 10GBase migrate from Gigabit Ethernet to 10G Ethernet. What's more, the 10GBASE-T SFP+ transceiver module has been optimized to save at least 0.5W per port compared to an embedded 10GBASE-T RJ45 port for link distances up to 30m. Thus, the power savings and corresponding operating cost reduction can be substantial.

Features & Advantages of 10GBASE-T SFP+ Copper Transceiver
  • Cost effective at up to 30m distance on UTP cables
  • Extension of the life of any switch hardware, without having to change existing infrastructure
  • Architecture Flexibility: Supports Top of Rack, Middle of Row or End of Row architectures
  • Auto-negotiable backward-compatibility with previous-generation BASE-T networks for a seamless migration to 10GbE
  • Field twisted pair cabling with familiar RJ-45 connector
  • Support for multi-gigabit data rates up to 10 Gbps
10g sfp+ copper rj45 port
Conclusion
As 10GBASE-T network equipment becomes increasingly available, data center decision makers will want to take advantage of the cost savings, convenience, and flexibility provided by deploying 10 Gb/s technology over balanced twisted-pair copper cabling. Nowadays SFP+ 10GBASE-T transceiver, owing to the compatible issue with switches, is not offered by many vendors. However, from a network equipment designer's perspective, 10G SFP+ copper modules will become popular in the near future. FS.COM has released 10GBASE-T SFP+ copper modules that are tested compatible with major brands like Cisco, Juniper, Dell, Brocade, Arista.

OM4 vs. OM5: What’s the Difference?

31. october 2017 at 10:42
As the demand for bandwidth, new transmission media must be developed to meet the requirements of users. The latest in optical transmission media is called OM5 fiber. To help you use this advanced fiber to its greatest advantage, this paper describes the basis of OM5 fiber, and highlights the key differences with OM4 fiber.

What Is OM5 Fiber?
According to the ISO/IEC 11801, OM5 fiber specifies a wider range of wavelengths between 850nm and 953nm. It was created to support short wavelength division multiplexing (SWDM), which is one of the many new technologies being developed for transmitting 40Gb/s and 100Gb/s. In June 2016, ANSI/TIA-492AAAE, the new wideband multimode fiber standard, was approved for publication. And in October of 2016, OM5 fiber was announced as the official designation for cabling containing WBMMF (Wide Band Multimode Fiber) by ISO/IEC 11801. From then on, OM5 may be a potential new option for data centers that require greater link distances and higher speeds.
OM5-Fiber
What Is OM4 Fiber?
OM4 is laser-optimized 50um fiber having 4.7GHz*km EMB bandwidth designed for 10 Gb/s, 40 Gb/s, and 100 Gb/s transmission. OM4 fiber has been on the market since 2005, sold as premium OM3 or OM3 fiber. The OM4 cable designation standardizes the nomenclature across all manufacturers so that the customer has a clearer idea of the product that they are buying. OM4 fiber is completely backwards compatible with OM3 fiber and shares the same distinctive aqua jacket. OM4 was developed specifically for VSCEL laser transmission and allows 10 Gig/second link distances of up to 550 Meters (compared to 300M with OM3) and offers an Effective Modal Bandwidth (EMB) of 4700 MHz-km.

OM4 vs. OM5: What's the Difference?
Since OM1 and OM2 fiber can not support 25Gbps and 40Gbps data transmission speeds, OM3 and OM4 were the main choices for multimode fiber to support 25G, 40G and 100G Ethernet. However, it's becoming more costly for optical fiber cable to support next-generation Ethernet speed migration as bandwidth requirements increase. Against such a background, OM5 fiber was born to extend the benefits of multimode fiber in data centers.
OM4-V.S-OM5-
The key difference between them is that EMB is specified only at 850 nm for OM4 fiber at 4700 MHz-km, while OM5 EMB values are specified at both 850 nm and 953 nm and the value at 850 nm is greater than that of OM4. Therefore, OM5 fiber offers users longer length distances and more choices in optical fiber. In addition, TIA has specified lime green as the official cable jacket color for OM5, while OM4 is aqua jacket. And OM4 is designed for 10Gb/s, 40Gb/s, and 100Gb/s transmission, but OM5 is designed for 40Gb/s, and 100Gb/s transmission which reduces the fiber counts for high speed transmissions.

What's more, OM5 cable can support four SWDM channels, each carrying 25G of data to deliver 100G Ethernet using a single pair of multimode fibers. Besides, it is fully compatible with OM3 and OM4 fiber. OM5 is available globally for installations in multiple enterprise environments, from campuses to buildings to data centers. In a word, OM5 fiber is a better choice than OM4 on transmission distance, speed and cost.

Conclusion
OM5 fiber provides next-generation multimode fiber performance for today and tomorrow's high speed applications. With its significantly higher bandwidth, it can be assured that multimode fiber will continue to provide the most cost effective solutions for short reach applications in data centers and LANs. OM5 precisely meets the demands, and it will be your preferable choice for your data centers.

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