The importance of switches in optical module testing

With the increasingly fierce competition in the optical communication market, the price of the optical module is irregular, such as Cisco, HUAWEI, H3C, Juniper, ZTE, Extreme etc. The price of these big brand module is very high, the market capacity of third party compatible module is increasing continuously. 

 

Used optical transceiver also appears on the market, so the customers will be prohibitive because of the high price for the big brand. But worry about the used goods will bring unnecessary trouble to the communication if low price, so these days whether it is online or offline customers, they asked a lot of similar questions: “ Must be high quality! Can guarantee compatible with Cisco?

 

Market demand for prices continue to decline, but the quality control has been unable to reduce the standard, but can’t reduce the standard of the quality control, this is also a great opportunity for our third party compatible module. In order to eliminate customer concerns and give end customers more quality assurance, let’s see how to guarantee the compatibility of the optical transceiver?

 

In fact, the compatibility of optical modules means that whether modules can be used on a certain brand of switches. To verify their compatibility, switches play an important role in testing.

 

Different compatibility needs to be tested through different brands of switches, for example:

SFP+ LR --- 10G SFP+ 1310nm MM 10KM LC DDM Cisco compatible, the optical module needs to be tested on the CISCO switch.

 

Our products will be strictly compatibility and other tests, you don’t need to worry about the quality. 

Hope these sharing will be helpful for you! Fighting together!

100 Gigabit Ethernet optical transceiver market set for growth

by www.fiber-mart.com

Globally, 10G, 40G, and 100G optical transceiver revenues totaled $1.9 billion in 2016, up 18% from 2015, and are expected

to grow a further 10% to reach $2.1 billion for full-year 2014, according to the latest report from Infonetics Research.

 

In the first half of 2014 (1H14), 10G, 40G and 100G transceiver revenues grew 11% from the same period a year ago,

according to the report. This increase is due almost entirely to the increase in shipments of 100G WDM and 40G QSFP+ modules,

the market research firm says. However, the long-anticipated ramp of 100 Gigabit Ethernet (100GbE) optical modules may be at hand.

 

"Major growth in the data center for 100 Gigabit Ethernet is on the horizon due to new silicon entering the market and lower-cost

QSFP28 optics, including SR4 and much cheaper 2-km LR4 optics," said Andrew Schmitt, principal analyst for carrier

transport networking at Infonetics Research. "Interest in 25GbE is also building momentum for a jump in these formats.

 

"In the telecom world, the market for 100G coherent equipment is controlled by five vendors – Alcatel-Lucent, Ciena, Cisco,

Huawei, and Infinera – who are vertically integrated, and this is preventing an incursion by standalone component vendors,"

he added. Infonetics forecasts the coherent WDM market to double in 2014.

 

Meanwhile, volumes in the metro 100G market are expected to ramp in a year and, according to service providers, this will be led

by data center and Internet content providers, Schmitt notes.

 

Interest in 100G data center network optics is accelerating, but has yet to be turbocharged by widespread data center deployment

in the way 40G QSFP optics have been.

 

Shipments of 40GbE QSFP optics in 1H14 were lower than anticipated due to softer demand from Internet content providers,

whose needs remain unpredictable, the market research firm says. Even so, growth in 40G data center interfaces is now

affecting 10G volumes, as QSFP+-based interfaces used for high-density 10G start encroaching; growth in the 10G datacom

segment is expected to slow down as a result starting this year, the firm suggests.

 

Infonetics' "10G/40G/100G Optical Transceivers" report tracks in granular detail 10G, 40G, and 100G optical transceivers sold

into the optical transport, enterprise, data center, and carrier routing, and switching markets. It provides worldwide market size,

forecasts through 2018, analysis, and trends for manufacturer revenue, units shipped, and ARPU. The report analyzes the optical

transceiver market by module speed, reach, wavelength, and form factor. Unit volume forecasts are based on Infonetics'

1G/10G/40G/100G Networking Ports forecast, which aggregates trends from a wide range of enterprise, data center,

optical transport, and carrier routing and switching equipment.

Which SFP Fiber Cable Should I Choose for My Optical Transceiver?

by www.fiber-mart.com

SFP fiber cable and fiber optic transceiver have become more and more important in fiber optic data transmission, especially in data transmission between the switches and equipment. But with so many different kinds of SFP fiber cables available in the market, which one is suitable for may optical transceiers? This article may on this issue to provide some solutions. Before starting this topic, it is necessary for us to review the basic knowledge of the fiber optic transceiver and fiber optic cable.

 

Fiber Optic Transceiver Overview

Fiber Optic Transceiver is a self-contained component that can both transmit and receive. Usually, it is inserted in devices such as switches, routers or network interface cards which provide one or more transceiver module slot. There are many optical transceivers types, such as SFP+ transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver and so on.

 

Fiber Optic Patch Cable Overview

Fiber optic patch cable, also known as fiber jumper or fiber optic patch cord. It is composed of a fiber optic cable terminated with different connectors on the ends. Fiber optic patch cables are used in two major application areas: computer work station to outlet and patch panels or optical cross connect distribution center. According to fiber cable mode, cable structure or connector types etc., fiber patch cable can be divided into different types.

 

1.Single-mode and Multimode SFP fiber Cable

According cable mode, patch cables can be divided into single-mode and multimode fiber patch cable. The word mode means the transmitting mode of the fiber optic light in the fiber optic cable core. Single-mode patch cables are with 9/125 fiber glass and are yellow jacket color, while multimode patch cables are with OM1 62.5/125 or OM2 50/125 fiber glass and are orange color. In addition, there is 10G OM3 and OM4 multimode patch cables which cable jacket are usually aqua.

 

2.Simplex and Duplex SFP fiber Cable

Simplex fiber patch cable is consist of single fiber core, while duplex fiber patch cable is consist of two fiber cores and can be either singlemode or multimode. Additionally, there is also ribbon fan-out cable assembly (ie. one end is ribbon fiber with multi fibers and one ribbon fiber connector such as MTP connector (12 fibers), the other end is multi simplex fiber cables with connectors such as ST, SC, LC, etc.).

 

3.LC, SC, ST, FC, MT-RJ, E2000, MU and MPO/MTP Patch Cable

Fiber optic patch cable can be also classified by the types of fiber optic connector. For example, LC fiber optic patch cable is named as it is with LC connector. Similarly, there are SC, ST, FC, MT-RJ, E2000, MU and MPO/MTP fiber optic patch cables. What’s more, there are PC, UPC, APC type fiber patch cords, which are differentiated from the polish of fiber connectors.

 

Which SFP fiber Cable Should I Choose for My Fiber Optic Transceivers?

Now, I will take the Cisco fiber optic transceiver as an example to discuss this topic. For example, we need to choose a right patch cable to connect Cisco fiber optic transceiver SFP-10G-SR and X2-10GB-SR. Which patch cable to use? According to “Cisco 10-Gigabit Ethernet Transceiver Modules Compatibility Matrix”, we may know that SFP-10G-SR is the 10GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength, LC duplex connector. And X2-10GB-SR is the 10GBASE-SR X2 transceiver module for MMF, 850-nm wavelength, SC duplex connector. Obviously, this two knids of optica trancseivers are both for MMF, so we should choose a multimode patch cable. Besides, we know X2-10GB-SR is designed for SC duplex connector and the SFP-10G-SR is designed for duplex LC connector, so we should use a patch cable with SC-LC duplex connector.

Choose the right SFP Fiber Cable for My Optical Transceiver?

by www.fiber-mart.com

SFP fiber cable and fiber optic transceiver have become more and more important in fiber optic data transmission, especially in data transmission between the switches and equipment. But with so many different kinds of SFP fiber cables available in the market, which one is suitable for may optical transceiers? This article may on this issue to provide some solutions. Before starting this topic, it is necessary for us to review the basic knowledge of the fiber optic transceiver and fiber optic cable.

 

Fiber Optic Transceiver Overview

Fiber Optic Transceiver is a self-contained component that can both transmit and receive. Usually, it is inserted in devices such as switches, routers or network interface cards which provide one or more transceiver module slot. There are many optical transceivers types, such as SFP+ transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver and so on.

 

Fiber optic patch cable, also known as fiber jumper or fiber optic patch cord. It is composed of a fiber optic cable terminated with different connectors on the ends. Fiber optic patch cables are used in two major application areas: computer work station to outlet and patch panels or optical cross connect distribution center. According to fiber cable mode, cable structure or connector types etc., fiber patch cable can be divided into different types.

 

1.Single-mode and Multimode SFP fiber Cable

According cable mode, patch cables can be divided into single-mode and multimode fiber patch cable. The word mode means the transmitting mode of the fiber optic light in the fiber optic cable core. Single-mode patch cables are with 9/125 fiber glass and are yellow jacket color, while multimode patch cables are with OM1 62.5/125 or OM2 50/125 fiber glass and are orange color. In addition, there is 10G OM3 and OM4 multimode patch cables which cable jacket are usually aqua.

 

2.Simplex and Duplex SFP fiber Cable

Simplex fiber patch cable is consist of single fiber core, while duplex fiber patch cable is consist of two fiber cores and can be either singlemode or multimode. Additionally, there is also ribbon fan-out cable assembly (ie. one end is ribbon fiber with multi fibers and one ribbon fiber connector such as MTP connector (12 fibers), the other end is multi simplex fiber cables with connectors such as ST, SC, LC, etc.).

 

3.LC, SC, ST, FC, MT-RJ, E2000, MU and MPO/MTP Patch Cable

Fiber optic patch cable can be also classified by the types of fiber optic connector. For example, LC fiber optic patch cable is named as it is with LC connector. Similarly, there are SC, ST, FC, MT-RJ, E2000, MU and MPO/MTP fiber optic patch cables. What’s more, there are PC, UPC, APC type fiber patch cords, which are differentiated from the polish of fiber connectors.

 

Which SFP fiber Cable Should I Choose for My Fiber Optic Transceivers?

Now, I will take the Cisco fiber optic transceiver as an example to discuss this topic. For example, we need to choose a right patch cable to connect Cisco fiber optic transceiver SFP-10G-SR and X2-10GB-SR. Which patch cable to use? According to “Cisco 10-Gigabit Ethernet Transceiver Modules Compatibility Matrix”, we may know that SFP-10G-SR is the 10GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength, LC duplex connector. And X2-10GB-SR is the 10GBASE-SR X2 transceiver module for MMF, 850-nm wavelength, SC duplex connector. Obviously, this two knids of optica trancseivers are both for MMF, so we should choose a multimode patch cable. Besides, we know X2-10GB-SR is designed for SC duplex connector and the SFP-10G-SR is designed for duplex LC connector, so we should use a patch cable with SC-LC duplex connector.

 

Which Patch Cable Should I Choose for My Fiber Optic Transceivers

 

The Most Common Used SFP fiber Cable Selection

In the way mentioned above, you could choose right fiber patch cable for your other transceiver modules. Keep in mind that if your transceiver modules are not Cisco’s, you need to ask your brand supplier to get the corresponding compatibility matrix. In fact, in terms of a same kind of optical transceiver, different supplier may provide the transceiver with different specifications. Here I may list the most common used patch cables selection. Hope to give you smoe reference.

Introduction to OSFP Optical Transceiver

by www.fiber-mart.com

OSFP is short for Octal Small Form Factor Pluggable. it is being designed to use eight electrical lanes and each lane for 50GBE to deliver 400GbE. compared with QSFP transceiver, It is slightly wider and deeper, but it still supports 36 OSFP ports per 1U front panel, enabling 14.4 Tbps per 1U.

 

OSFP is a conventional style of electrical interconnect, leveraging best practices that the industry has learned in the past from SFP and QSFP connectors. The electrical connector in OSFP has a single row of contacts on both top and bottom, and it provides robust electrical and signal-integrity performance. Because it’s faceplate pluggable and eld replaceable, it has a single-receptacle electrical connector.

 

One of the nontraditional aspects of OSFP is that it integrates thermal management (heat sinking) directly into the form factor to help cool the module, similar to the microQSFP form factor that predates it. An OSFP integrated heat sink is intended to enable modules with up to 15 W of power in a switch chassis with conventional front-to-back air ow. This accomplishes two things over a more conventional riding heat sink: It eliminates the high thermal resistance between the module and the heat sink, and, secondarily, once the air exits the back of the module form factor, it is available for cooling the silicon switch or compute chips that are downstream inside the equipment enclosure.

 

The OSFP receptacle does not offer backwards intermate-ability to existing modules since it favors optimizing the electrical, packaging, and thermal aspects over legacy application support.

 

There are multiple type of connectors supported by OSFP; Duplex LC, MPO/MTP, CS, and copper.