Category Archives: Fiber Optical Transceivers

Cisco SFP+ Module Wiki and Buying Tips

When it comes to optical modules, the brand Cisco especially their Cisco SFP+ modules will be mentioned by almost everyone in optic fiber field. As one of the worldwide leaders in IT and networking, Cisco has dedicated to networking equipment design and manufacture for several decades. Among their all sorts of product lines, SFP+ modules have enjoyed a widespread reputation. In the context of that, in this article, we are going to make an overall exploration of the Cisco’s superstar product: Cisco SFP+ module.

Cisco compatible10G SFP+ modules

Figure 1: Cisco compatible 10G SFP+ modules

An Overview of the Cisco SFP+ Module

Like the general SFP+ transceivers, Cisco SFP+ modules are kinds of optical devices designed for 8 Gbit/s Fibre Channel, 10 Gigabit Ethernet and optical transport network standard OTU2, supporting data rates up to 16 Gbit/s.

Main Features

Main features of Cisco SFP+ modules can be shared as below:

  • Industry’s smallest 10G form factor for greatest density per chassis
  • Hot-swappable input/output devices that plug into an Ethernet SFP+ port of a Cisco switch (no need to power down if installing or replacing)
  • Supports “pay-as-you-populate” model for investment protection and ease of technology migration
  • Optical interoperability with 10GBASE XENPAK, 10GBASE X2, and 10GBASE XFP interfaces on the same link
  • Hot-swappable input/output devices that plug into an Ethernet SFP+ port of a Cisco switch (no need to power down if installing or replacing)
  • Cisco quality identification (ID) feature enables a Cisco platform to identify whether the module is certified and tested by Cisco
Cisco SFP+ Module Types

With various Cisco SFP+ module types, a wide variety of 10 Gigabit Ethernet connectivity options for diverse networking environments, like data centers, enterprise wiring closet, and service provider transport applications can be offered. Altogether, Cisco SFP+ modules consist of Cisco SFP-10G-SR, SFP-10G-LR (LRM), SFP-10G-ER and SFP-10G-ZR, etc. You can refer to the table displayed as below for detailed specifications of Cisco SFP+ modules.

Cisco SFP+
Wavelength (nm)
Interface
Cable Type
Core Size (Microns)
Cable Distance
Cisco SFP-10G-SR-S

850

Dual LC/PC

MMF

62.5

26 m
Cisco SFP-10G-SR
33 m
Cisco SFP-10G-SR-X
50
66/82/300/400 m
Cisco SFP-10G-LRM

1310

Dual LC/PC

SMF/MMF
G.652/62.5/50
300/100/220 m
Cisco SFP-10G-LR-S

SMF

G.652

10 km

Cisco SFP-10G-LR
Cisco SFP-10G-LR-X
Cisco SFP-10G-ER-S

1550

Dual LC/PC

SMF

G.652

40 km

Cisco SFP-10G-ER
Cisco SFP-10G-ZR-S

80 km

Cisco SFP-10G-ZR
Cisco FET-10G
850
Dual LC/PC
MMF
50
25/100 km
Cisco SFP-10G-BXD-I
1330

Dual LC/PC

SMF

G.652

10 km

Cisco SFP-10G-BXU-I
1270
Cisco SFP-10G-BX40D-I
1330

40 km

Cisco SFP-10G-BX40U-I
1270

How to Choose Cisco SFP+ Modules?

If you want to buy Cisco SFP+ modules, it’s sensible to put their optimum transmission distance and compatibility with other Cisco devices into consideration.

As for the transmission distance, basically, the ranges between 100 m to 400 m and 10 km to 80 km are commonly seen. For the distance from 100 m to 400 m, we usually use Cisco 10G multimode SFP+ transceiver. For example, if you want to buy a Cisco SFP+ module for transmission within 300 m, then the Cisco SFP-10G-SR module will be the best choice. More information about the optimum transmission distance of Cisco SFP+ modules, you can refer to the table above.

Apart from distance, another important thing you should be clear about is the SFP+ module’s compatibility with other Cisco devices. You may wonder if this Cisco SFP+ Module can connect with other devices, such as SFP modules. The answer is NO. For example, If you connect the SFP-10G-SR with Cisco GLC-SX-MMD SFP transceiver (1 Gbps only), they may not be able to work. Since the SFP-10G-SR only runs at 10 Gbps link rate, it means you force SFP-10G-SR to use 1Gbps speed. You can never interconnect them. For more details about the compatibility of Cisco modules, you can search it from their online Compatibility Matrix.

Cisco SFP-10G-SR (Right) and Cisco GLC-SX-MMD SFP (Left)

Figure 2: Cisco SFP-10G-SR (Right) and Cisco GLC-SX-MMD SFP (Left)

By the way, Cisco SFP+ module price sometimes is also troublesome for many buyers. When you search Cisco SFP+ modules online, you will find the price of these modules from original brand retailers is not economical. Therefore, in recent years, using non-original brand retailers optical transceivers in fiber optic network has been a trend. More and more users prefer third-party modules, like FS.COM, pluggable optics as they are assured to be fully compatible with the original brand hardware as well as having a cheap price.

Conclusion

As a leading role in fiber optic network, Cisco SFP+ module has been witnessed a glorious period. But with the unremitting efforts of other manufacturers, undoubtedly, other non-original brand retailers brands will be seen on the rise. For sure, the FS.COM will be that great case.

Tunable vs Standard DWDM SFP+ Modules

Nowadays, SFP+ modules have been largely applied into use. However, in order to meet people’s demand for greater transmission capacity, the Dense wavelength division multiplexing (DWDM) as a kind of technology, combining multiple data signals on laser beams at various wavelengths and transmitting them over a single optic fiber network is also in urgent need to combine with SFP+ modules. Currently, the tunable DWDM SFP+ modules and the standard DWDM SFP+ are commonly found in the market. In this article, we are going to introduce these two types to you.

What Are the Tunable DWDM SFP+ Modules

At first, let’s go over the SFP+ transceiver definition from SFP+ transceiver wiki. In short, the SFP+ transceiver is the enhanced version of SFP module. It is a compact, hot pluggable optic module transceiver used for telecommunications and data communication applications. (If you want to get more details about how to use SFP+ transceiver, you can refer to the article A Complete Guide of Installing or Removing Transceiver Modules.) There are many types of SFP+ modules, among which the tunable DWDM SFP+ modules is a very important one.

The tunable DWDM SFP+ module can also be called tunable SFP+ transceiver, because it’s only available in DWDM form for its narrower grid than CWDM’s. The tunable DWDM SFP+ module is a unique device which enables you to set the channel or “color” the laser emits. According to the network demand, you can adjust your transmission wavelength unlimitedly within the C-band DWDM ITU Grid.

10G DWDM C-band Tunable SFP+

Figure 1: 10G DWDM C-band Tunable SFP+ Modules

Why Prefer the Tunable DWDM SFP+ Module

Since the standard DWDM SFP+ module is also a popular type in the market, you may still get confused about these two SFP+ types. In fact, the tunable DWDM SFP+ module is more preferred by the user. In the light of that, this part will explore this doubt.

First, the cost will be a major factor. Frankly, in short term, the price of a tunable DWDM SFP+ is much higher than a DWDM SFP+. However, the conventional DWDM SFP+ transceivers use fixed-wavelength lasers as light sources. Hence, for different wavelength channels, you need to use the corresponding optical transceivers to receive and transmit signals. However, a tunable DWDM SFP+ can operate at any channel wavelength for its tunable laser. Moreover, in order to prevent an unexpected breakdown, users have to prepare kinds of DWDM SFP+ modules with different wavelengths for a rainy day. Considering that will be a huge cost for any user, using a tunable DWDM SFP+, things will be quite different. In light of that, from a long term, the tunable DWDM SFP+ will definitely be the best choice to save your cost.

Second, it’s the flexible network management. When a DWDM network runs with lots of nodes, for example, for 80 different wavelengths, their management could be a nightmare. In different locations, you have to prepare couples of DWDM SFP+ optics for each wavelength. Thus tunable DWDM SFP+ would be a good choice. It is configured for a specific wavelength to support bandwidth changes as needed in the optical network.

10G DWDM SFP+ 100GHz

Figure 2: 10G DWDM SFP+ Modules 100GHz

Conclusion

Through this article, the two special types of transceiver modules in combining with the DWDM technology have been introduced: tunable DWDM SFP+ modules and standard DWDM SFP+ modules. After that, based on a comparison of these two types of modules, reasons contributing to people’s preferred choice of tunable DWDM SFP+ modules have also been explored. Hope it has helped to clear your doubt these two types.

Fiber SFP Module VS Fiber Media Converter

Many devices in the optical communication field are sharing similar functions, such as fiber SFP module and fiber media converter. They are designed as the equipment for photoelectric conversion. Some of you may get confused about the two seemingly similar devices. Don’t worry, in this article, we are going to reveal the secret between SFP fiber module and fiber media converter. In the beginning, let’s go over the definitions of them.

What Is the Fiber SFP Module

The SFP (small form-factor pluggable) module, also called mini GBIC (gigabit interface converter), is a compact, hot-pluggable optical transceiver used for both telecommunication and data communication applications. It converts electrical signals to optical signals and vice versa. Usually, the SFP module consists of optical SFP and copper SFP. And the type depends on whether their SFP ports connect with fiber optic cables or copper cables. The fiber SFP module can support SONET, Gigabit Ethernet, Fiber Channel, and other communication standards.

Figure 1: SFP Copper RJ45 100m Transceiver

Figure 1: SFP Copper RJ45 100m Transceiver

What Is Fiber Media Converter?

Similar to the working mode of optical transceivers, the fiber media converter receives data signals from one media and transmits them to another. Conventionally, fiber media converters can support two kinds of conversion: copper-to-fiber and fiber-to-fiber. Copper-to-fiber media converters are devices designed to connect two dissimilar media types, such as the twisted pair with fiber optic cabling. They will be chosen when the transmission distance of two network devices with copper ports need to be extended via fiber optic cabling. When it comes to the fiber-to-fiber conversion, it supports a connectivity not only between multimode fiber and single mode fiber but also a dual fiber link and single fiber using Bi-directional (BIDI) flow. Conversions between different wavelengths can also be achieved by some fiber-to-fiber media converters.

Figure 2: 1*SFP and 2*RJ45 Ports Mini Gigabit Ethernet Media Converter

Figure 2: 1*SFP and 2*RJ45 Ports Mini Gigabit Ethernet Media Converter

Connection: Fiber SFP Module vs Fiber Media Converter

A fiber SFP module has a much smaller size than a fiber media converter. Before catching the connection between fiber SFP modules and fiber media converters, we had better know the media converter’s physical structure in advance. So far, copper-to-fiber media converters cover two types of ports. One is for copper (usually the RJ45 port) and the other is for fiber. As for fiber ports, two kinds can also be found. One is designed to insert fiber optic transceivers (SFP, XFP and etc), and the other to connect fiber optic patch cables (SC, LC and etc). As for fiber-to-fiber media converters, both the input ports and output ports are for fiber link. It can be a fiber optic connector for fiber patch cables or an SFF connector for optical modules. After knowing the media converter’s physical structure, it will be easier for us to grasp how does it coordinate with the SFP fiber module. Therefore, if you want to make an SFP module and a media converter both into use at the same time, you need to choose a fiber media converter with fiber ports for an optical transceiver. That is to say, you can insert you SFP module into one side and connect an RJ45 copper cable with the copper port on the other.

Figure 3: 1SFP+1RJ45 Ports Mini Gigabit Ethernet Media Converter

Figure 3: 1SFP+1RJ45 Ports Mini Gigabit Ethernet Media Converter

Conclusion

To sum up, in this article, we introduce what the fiber SFP module and the media converter are. Then after studying the media converter’s physical structure and how it coordinates with the fiber SFP module, we can understand the connection between the fiber SFP module and the media converter.

Things You Should Know About SFP+ Transceiver

SFP+ transceiver in short stands for enhanced Small Form-factor Pluggable transceiver. As an enhanced version of SFP, the SFP+ transceiver is also a compact, hot pluggable optic module transceiver. The SFP+ can be used for telecommunications and data communication applications. With various standards, the SFP+ transceiver can be classified differently. In this text, we mainly focus on the SFP+ transceiver’s host interface, data rate, application, and distance.

Types of SFP+ Transceiver

Classified by host interface, the SFP+ fiber optic transceiver can be divided into linear and limiting transceivers. The linear SFP+ module is most appropriate for 10GBase-LRM; otherwise, a limiting module is preferred with the reason that it contains a signal amplifier to re-shape the degraded (received) signal whereas linear does not.

Classified by data rate, the SFP+ transceiver can still be put into three types: 8.5Gb/s SFP+, 10Gb/s SFP+, 16Gb/s SFP+. With its fast development, many vendors can provide a customized one to meet their customers’ different demands.

Classified by application, BiDi SFP+ modules, CWDM SFP+ modules, DWDM SFP+ modules, and other common SFP+ optical transceivers are covered. Considering CWDM and DWDM SFP+ transceivers, they are regarded as the most convenient and cost-effective choices for a campus, data-center, and metropolitan-area access networks using 10 Gigabit Ethernet, with a transmission speed up to 11.25G. The CWDM SFP+ transceiver is designed for bi-directional (BIDI) serial optical data communications such as IEEE 802.3ae 10GBASE-LR/LW/ER. It can support 18 wavelengths from 1270 nm to 1610 nm and has steps of 20 nm, with a transmission distance from 20 km to 80 km. The DWDM SFP+ transceiver is specifically designed for carriers and large enterprises that require a scalable, flexible, cost-effective system for multiplexing, transporting and protecting high-speed data, storage, voice and video applications in point-to-point, add/drop, ring, mesh and star network topologies. It supports more than 40 channels with a transmission distance up to 80 km. As for the BiDi SFP+ transceiver, it’s the enhanced small form-factor pluggable fiber transceiver designed for bi-directional 10G serial optical data communications. Working over one fiber, the BiDi SFP+ uses WDM technology sharing transmission directions into wavelengths of 1270 nm and 1330 nm with a distance up to 10 km, 20 km, 40 km, or 60 km.

1490nm 80km CWDM SFP+

Figure 1: 1490nm 80km CWDM SFP+ transceiver connected with single mode LC duplex cable

Classified by wavelength, 10G SFP+ can be grouped into short wavelength SFP+, long wavelength SFP+ and extra long one. For example, SFP-10G-SR belongs to the short wavelength (850 nm), supporting multimode fiber, such as OM3 (300 m) and OM4 (400 m). Besides, the 10G SFP+ copper also belongs to the short one. With an RJ45 connector, it is specifically designed for high-speed communication links that require 10 Gigabit Ethernet over Cat 6a/7 cable with a link limit of 30 m. While SFP-10G-LR can support a long wavelength and a long distance up to 10 km by using a single-mode fiber. For extra long wavelength and extended reach, 10GBASE-ER SFP+ can reach 40 km with the wavelength of 1550 nm by using a single-mode fiber, and also the 10GBASE-ZR SFP+ belongs to the extra long one, which can support the wavelength of 1550 nm with a distance up to 80 km.

10G copper SFP+ transceiver

Figure 2: 10G copper SFP+ and RJ45 Ethernet cable

Conclusion

With the above introduction, we will have a basic idea of what the SFP+ transceiver is and how many types it has. Since the SFP+ transceiver enjoys lots of strengths, such as high density, low cost, and low power consumption, it has been frequently used in the fiber communications industry. Now that the SFP+ possesses a wide range of types, it can meet their different needs. There is no need to doubt the SFP+ transceiver will keep releasing a huge potential in the future.

An Analysis On Optical Transceiver Market

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 transceiver 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 transceiver modules are given full play to upgrade telecommunications networks and launch very large data centers. What’s the future of optical transceiver 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.”

optical transceiver market elements

Server Virtualization Drives Higher Data Rates. Source: Dell’Oro. 07/ 2012

The global optical transceiver 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 optical 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 Analysis for Optical Transceiver Market

Geographically, North America is seen as the most active optical transceiver 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 module. Moreover, the combined use of 40G and 100G optical module 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 module.

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 modules available in the market differing in the type of data transmission speed, connections and packing forms. Some of the types available in the optical transceiver 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.

A Glance At Cisco Single Mode SFP Specification

SFP(small form-factor pluggable) transceivers compact, hot-pluggable transceiver used for bothtelecommunication and data communications applications. They are an interface with a motherboard, router, switch or optical media converter. Link connection into a fiber optic or copper cabling. SFP transceivers are designed to support SONNET, Fiber Channel, Gigabit Ethernet or similar standards. There are both multi-mode and single mode SFP transceiver types. There are also many vendors manufacturing SFP transceivers like major brand Cisco. Cisco SFP transceivers also have Cisco multi-mode SFP and Cisco single mode SFP transceiver types. The following text will mainly focus on Cisco single mode SFP.

cisco singlemode sfp

An Outline of Cisco SFP Transceiver

The industry-standard Cisco SFP transceivers are mainly used to link equipment in telecommunication and data communications like switches and routers. They support applications like 2G/4G Fiber Channel, SONET/SDH Network, Gigabit Ethernet, High-speed computer links, and with CWDM and DWDM interfaces. Cisco SFP have many types, such as 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-EX, 1000BASE-ZX, or 1000BASE-BX10-D/U on a port-by-port basis. Among them, 1000BASE-T SFP operates on standard Cat 5 UTP copper cabling of link lengths up to 100 m; 1000BASE-SX SFP only operates on multimode fibers; 1000BASE-LX/LH SFP operates on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode fibers; 1000BASE-EX SFP only operates on long reach standard single-mode fibers; 1000BASE-ZX SFP operates on long-reach standard single-mode fibers; 1000BASE-BX10-D and 1000BASE-BX10-U SFP operate on a single strand of standard SMF. So we can see that Cisco single mode SFP consists of 1000BASE-EX SFP, 1000BASE-ZX SFP, 1000BASE-BX10-D and 1000BASE-BX10-U SFP.

cisco sfp

A Sketch of Cisco Single Mode SFP Transceiver

Cisco single mode SFP has much tighter tolerances for optics used. The core is smaller and the laser wavelength is narrower. This means that SMF has the capability for higher bandwidth and much longer distances in transmission. Cisco single mode SFP (SMF SFP) work mainly in 1310nm and 1550nm wavelength and is mostly used in long distances transmission environment reaching 2km, 10km, 40km, 60km, 80km and 120km. The color coded bale clasp and color arrow on label are generally blue, yellow or purple. And the color of compatible fiber optic patch cord is yellow.

Cisco Single Mode SFP Specification

Here is a specification chart of Cisco single mode SFP transceivers.

Model Number Transceiver Description
GLC-ZX-SM= 1000BASE-ZX SFP transceiver module for SMF, 1550-nm wavelength, dual LC/PC connector
GLC-BX-D= 1000BASE-BX10 SFP module for single-strand SMF, 1490-nm TX/1310-nm RX wavelength, single LC/PC connector
GLC-BX-U= 1000BASE-BX10 SFP module for single-strand SMF, 1310-nm TX/1490-nm RX wavelength, single LC/PC connector
GLC-BX40-D-I 1000BASE-BX10 SFP module for single-strand SMF, 1550-nm TX/1310-nm RX wavelength, single LC/PC connector
GLC-BX40-U-I 1000BASE-BX10 SFP module for single-strand SMF, 1310-nm TX/1550-nm RX wavelength, single LC/PC connector
GLC-BX80-D-I 1000BASE-BX10 SFP module for single-strand SMF, 1570-nm TX/1490-nm RX wavelength, single LC/PC connector
GLC-BX80-U-I 1000BASE-BX10 SFP module for single-strand SMF, 1490-nm TX/1570-nm RX wavelength, single LC/PC connector
GLC-BX40-DA-I 1000BASE-BX10 SFP module for single-strand SMF, 1490-nm TX/1310-nm RX wavelength, single LC/PC connector
GLC-2BX-D= Dual-channel 1000BASE-BX10 SFP module for single-strand SMF, 1490-nm TX/1310-nm RX wavelength, two single LC/PC connectors
GLC-EX-SMD= 1000BASE-EX SFP transceiver module for SMF, 1310-nm wavelength, extended operating temperature range and DOM support, dual LC/PC connector
SFP-GE-Z= 1000BASE-ZX SFP transceiver module for SMF, 1550-nm wavelength, extended operating temperature range and DOM support, dual LC/PC connector
GLC-ZX-SM-RGD 1000BASE-ZX SFP transceiver module for SMF, 1550-nm wavelength, industrial Ethernet, dual LC/PC connector
GLC-ZX-SMD= 1000BASE-ZX SFP transceiver module for SMF, 1550-nm wavelength, dual LC/PC connector

Conclusion

From the above introduction, you must have a well understanding about Cisco single mode SFP. When choosing SFP modules, you should consider whether it matches the switch port and the cable you have prepared. If you have multimode cable, then you can choose 1000BASE-SX or 1000BASE-LX/LH SFP. If you use single-mode fiber cable, you should select what I’ve mentioned above. While if your cable is copper category, you have to use 1000BASE-T SFP such as GLC-T SFP. On condition that your budget doesn’t allow you to buy original brand module, you can buy the third-party optics from FS.COM with Cisco, Avago, HP and other compatible brands. All the optics have gone through test for 100% compatibility.

SFP-10G-SR-S vs SFP-10G-SR, Why Choose One Over the Other?

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-S vs SFP-10G-SR, why choose one over the other? Hope this post may give some clue.

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

SFP-10G-SR-S vs SFP-10G-SR: Similarity

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-S vs SFP-10G-SR: 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.

Vendor Model Brand Price
CDW SFP-10G-SR Cisco $693.99
Router-Switch SFP-10G-SR Cisco $262.00
Monoprice SFP-10G-SR Ironlink $136.75
10Gtek SFP-10G-SR 10Gtek $41.05
FS.COM SFP-10G-SR FS.COM $16.00

SFP-10G-SR-S vs SFP-10G-SR, Which Will You Choose?

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

Related Articles:

Knowledge of SFP-10G-SR Price and Compatibility

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

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 module, the 10GBASE-T SFP+ RJ45 copper 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:

Ports 10GbE SFP+ port; Duplex: full only Interface RJ45
Weight 0.04 lb, fully loaded Operating temperature

 

32℉- 158℉(0℃-70℃)
Operating relative humidity 5%-95%, noncondensing Altitude

 

Up to 10,000 ft
Power consumption maximum 2.5W Cable type Cat6a/7 cable
Maximum distance 30 m Fiber type

 

Copper

Cisco 10GBASE-T SFP+ Transceiver: SFP-10G-T-S

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 genuine SFP-10G-T-S Form type SFP+
Max data rate 10.3125Gbps Max transmission distance

 

30 m
Interface RJ45 Cable type

 

Cat6a/cat7
DOM support No Operating temperature 32℉- 158℉(0℃-70℃)

FS.COM 10GBASE-T SFP+ Transceiver: SFP-10G-T

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 number SFP-10G-T Form type SFP+
Data rate 10Gbps, 5Gbps, 2.5Gbps, 1000Mbps Cable distance

 

Up to 100m*
Power consumption 2.5W Interface

 

RJ45
DOM support No Operating temperature 32℉- 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. The following table gives some copper SFP+ product numbers and descriptions for your reference:

Product ID Description
66612 Generic Compatible 10GBASE-T SFP+ Copper RJ-45 30m Transceiver
66613 Cisco SFP-10G-T-S Compatible 10GBASE-T SFP+ Copper RJ-45 30m Transceiver
66614 Arista Networks SFP-10GE-T Compatible 10GBASE-T SFP+ Copper RJ-45 30m Transceiver
66615 H3C SFP-XG-T Compatible 10GBASE-T SFP+ Copper RJ-45 30m Transceiver
66616 Dell GP-10GSFP-T Compatible 10GBASE-T SFP+ Copper RJ-45 30m Transceiver
66617 Customized Compatibility 10GBASE-T SFP+ Copper RJ-45 30m Transceiver

Related Articles:

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

Choose 10GBASE-T Copper Over SFP+ for 10G Ethernet

10GBASE-T vs SFP+, Which Is the Best 10G Network Solution?

Understanding of 10GBASE-T SFP+ Copper Transceiver Modules

10G Copper SFP+ Transceiver: A New Option For 10GbE Network

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 10G 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 copper SFP+ transceiver.

Basic Introduction to 10GBASE-T Copper SFP+ Transceiver

10G copper SFP+ 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 cable, 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.

10G Copper SFP+ 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.

10G Copper SFP+ 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 Copper SFP+ 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 copper sfp+ 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 copper SFP+ 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.

Related Articles:

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

Understanding of 10GBASE-T SFP+ Copper Transceiver Modules

Choose 10GBASE-T Copper Over SFP+ for 10G Ethernet

How to Solve the Problems When Using SFP Optical Transceiver

The small form-factor pluggable (SFP) optical transceiver is one of the protagonists of modern networking, which is a hot-swappable, compact media connector used for telecommunication and data communications. It is designed to provide instant fiber connectivity for your networking devices, such as routers and switches. It is a cost-effective way to connect a single network device to a wide variety of fiber cable for different distances and fiber types, including Ethernet, SONET, single-mode fiber, and multi-mode fiber. Therefore, most people are using SFP optical transceivers for their 1G transmission, especially Cisco SFP optical transceiver. At the same time, there are many problems when using these SFP optical transceivers. This article may summary the problems that may occur and provide the guided solutions for you, as well as give you some notes for maintaining the quality of SFP optical transceivers.

SFP Transceiver

Problems & Solutions

Some problems may appear when we are using SFP optical transceiver. Now let’s talk about why these problems happen and how to solve these problems. The problems are classified as transmitting failure and receiving failure. The problems and solutions are as follows:

Optical Interface Is Polluted and Damaged

Owing to the pollution and damage of the optical interface, its optical link loss become higher, resulting in the optical link fails.

Solutions
  • Testing the environment of the exposed optical interface, some dust and pollution may enter into the structure.
  • Testing the link ending of optical fibers, because the optical interface may experience second pollution.
  • Testing the interface of the optical connector with pigtail, it may have some improper uses.
  • Testing the quality of fiber optic connectors, you could use the inferior optical fiber connectors.
Damage of ESD(Electro Static Discharge)

Static electricity will absorb dust, which may change impedance line and affect the life and function of the product. The ESD will damage components, which may work in short-term, but their life is still affected.

Solutions
  • Avoiding the dry environment, for which easily produce the ESD.
  • Avoiding the abnormal operation. For example, operating the non-hot-swappable optical modules with electricity; directly touching the pin of transceiver module by hand without ESD protection; there is not anti-static packaging during the transport and storage process.
  • Avoiding non ground-connection or bad ground connection.
  • Improving the ESD immunity of electronic components, because the ESD is inevitable.
Incompatibility

While SFP transceivers are fully-compliant with IEEE 802.3 and the SFP multi-source agreement (MSA), they may not be compatible with some network switch equipment. Because some switch manufacturers program their equipment to accept only their own brand of SFPs.

Solutions

Each SFP module holds its own memory in Electrically Erasable Programmable Read – Only Memory (EEPROM). This memory is coded with unique identifiers. The firmware of the host device will check the memory for the correct information to confirm compatibility. A SFP transceiver will work in any host device as long as it has the correct coding. Advance transceivers are coded specifically to suit each host device to avoid this problem.

Notes for Maintaining the Quality of SFP Optical Transceiver

Quality is also very important for SFP optical transceiver, for which is the top priority of customers. Here are some notes:

  • Finding the failure product in advance before shipment
  • Prohibiting the faulty module to leave the factory
  • Decreasing reject rate
  • Guaranteeing the working stability of the products after leaving the factory
Summary

SFP optical transceiver provides a cost-effective and flexible solution for network designs. I hope this article can help you solve the problems when you are using the products and learn how to avoid these problems.