Fiber Optic Communication

MTP/MPO fiber cable designed for a higher bandwidth transmission. It has two types, the one type is 12-fiber for 40G data transmission while the other type is 24-fiber for 100G data transmission. MTP/MPO fiber cable can meet the huge demand for more bandwidth and more space efficiency of data centers and ever-expanding server clusters. In this article, MTP/MPO connector, MTP/MPO trunk cable and MTP/MPO harness cable will be covered. What IS MTP/MPO Connector? The letters MTP/MPO stand for “Multiple-Fiber Push-On/Push-of”. MTP/MPO connector is designed for multi-fiber application. The MTP/MPO connector is manufactured specifically for multi-fiber ribbon cable. Furthermore, it can be divided into different types of female-female, male-male and female-male connectors. The male connector has metal guide pins to ensure fiber alignment when mating while female connector has no pins. A female connector is also known as a jack, outlet, or receptacle. This types of connector attached to a

It is known to all that fiber optic cable is made of glass or plastic that mainly used for transmitting information. Fiber optic cable can be divided into many types according to different classification principles, such as source, mode, usages... In this text, we would mainly introduce simplex and duplex fiber optic cable as well as their differences. Simplex Fiber Optic Cable A simplex fiber only consists one single strand of glass of plastic fiber. Simplex signals are sent in one direction. It is much like what we said “one-way-street”. If a signal is transmitted from device A to device B over a simplex fiber optic cable, it cannot return from device B through the same cable. For example, we receive signals from radio station but never send signals to it. Thus, it is used for applications that only require one-way data transfer. Simplex fiber is most often used where only a single transmit and receiver line is required between devices or when as multiplex data signal is used.

A fiber patch cord is a length of fiber cable fitted with LC, SC, MTRJ or ST connectors at each end. Fiber jumpers also come in hybrid varieties with one type of connector on one end and another type of connector on the other. Jumpers are used in the same manner as patch cords, to connect end devices or network hardware to the structured cabling system. Pigtail is a type of fiber cord, and in the the following text, the general information and types of pigtail will be provided. Information About Fiber Optic Pigtail Being different from fiber optic patch cord, fiber optical pigtail is a cable ended with fiber connectors at only one side of the cable while the other side without any connector (bare fiber). The connector side used for connection to the equipment while the bare fiber is melted with optical fiber. So the difference between a patch cord and a fiber optic pigtail lies in the two ends of the cable. Sometimes, we could change the patch cord into a fiber optical pigtail for

Almost all modern optical transceivers utilize two fibers to transmit data between switches, firewalls, servers, routers, etc. One fiber is dedicating to receiving data from networking equipment while the other fiber is dedicating to transmitting data to the networking equipment. A new optical transceiver technology is now available that allows transceivers to both transmit and receive data to/from interconnected equipment through a single optical fiber. This technology first emerged about 7 years ago and had led to the development of Bi-Directional transceivers, or BiDi transceivers for short. The Bi-Directional Small Form Factor Pluggable (BiDi) is a compact optical transceiver module which is used in optical communication for both telecommunications and data bidirectional communications applications. It interfaces a network device mother board (for a switch, router or similar device) to a fiber optic or unshielded twisted pair networking cable. It is a popular industry format sup

Small Form-Factor Pluggable (SFP) is designed to meet Multi-Source Agreement (MSA), 1 to 2.5 Gigabit Ethernet, Fibre Channel, and other communication standards to ensure network equipment compatibility. SFP transceivers are available with a variety of form factors, which allow users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber type. It is used for both telecommunication and data communication. SFP has many types, such as 100BASE SFP, 1000BASE SFP, BiDi SFP... we would mainly introduce CWDM SFP, DWDM SFP and their differences in this text. CWDM SFP Extended from wavelength division multiplexing(WDM), Coarse Wavelength Division Multiplexing (CWDM) is used to increase the bandwidth of an optical fiber by multiplexing several wavelength onto it. Using 18 channels with wavelengths between 1270 nm and 1610 nm, it improves the transmission speed a lot. A CWDM SFP transceiver is a hot-swappable input/output devi

Data communication and network technology have been developed in recent decades. With the expanding of networks, enterprises and vendors have been looking for a perfect solution to collect and store the data. Scalability, reliability and flexibility are their perpetual pursuit for their networks and data centers. Aimed at big data environments., Extreme X770 Series Switches meet a perfect need for all these requirements. This text will provide the some basic information about Extreme X770 Series Switches, especially for the transceivers that can be used in it. Introduction to Extreme X770 Series Switches Extreme X770 series switches are purpose-built top-of-rack switches designed to support 10 Gigabit Ethernet-enabled servers and emerging 40 Gigabit Ethernet-enabled servers in enterprise and cloud data centers. X770 series helps optimize new server deployments by supporting 40GbE ports or using breakout cables and/or fiber to support 10GbE ports to start the transition to the new

Around 1980s, Internet traffic was increasing prominent as the unceasing popularity of the Internet equipment. A call for a higher demand of communication capacity was higher and higher than ever before. Data, video and voice signals crowd transmission systems that had ample space just a few years ago. The communications industry needs room to breathe. This is just an exactly time to upgrade the capacity and enhance the speed in fiber-optic technology. By sending signals at 16 different wavelengths through each of four pairs of optical fibers, Project Oxygen ( a project of a well-known company of fiber-optic technology) researched and developed a technology which can carry 640 gigabits per second (Gbit/s) across whole oceans. The technology that makes this new bandwidth possible is called wavelength division multiplexing, or WDM. It represents the second major fiber-optic revolution in telecommunications. The definition and two common types of WDM (CWDM and DWDM) will be provided in t

The 100GBASE-QSFP28 is designed to carry 100 Gigabit Ethernet. This transceiver type is also used with direct-attach breakout cables to adapt a single 100GbE port to four independent 25 gigabit Ethernet ports (QSFP28-to-4x-SFP28). The QSFP28 transceiver is a high-density, high speed product solution designed for applications in the communications, data center and networking markets. How about the 100GBASE QSFP28 cables? The 100GBASE-QSFP28 is fully covered with 100GBASE DAC twinax cables. Types of 100G QSFP28 DAC Cable In the most common places, 100GBASE DAC cables are generally divided into two types. One type is that the two ends of the cable are all 100G QSFP28 connectors. That is, QSFP28 to QSFP28 100G Passive DAC Cable. Another type is that one end is a 100G connector while the other end is four 25G SFP28 connectors. That is 100G QSFP28 to 4×25G SFP28 Fan-out Passive DAC Cable. The detail information of this two kinds of 100G QSFP28 cables will be provided in the following te

In recent years, we have witnessed the prosperity of the telecom market. Many research company predicts that the market of 2017 for telecommunication field will continue to thrive. With such a bright future, fiber optics market attracts a wide attention and many vendors want a piece of pie. At present, 40G is ubiquitous in the data center and 100G is accelerating. 100 Gigabit Ethernet (100GbE) are groups of computer networking technologies for transmitting Ethernet frames at rates of 100 gigabits per second (100 Gbit/s) after 40 gigabits per second (40 Gbit/s). The technology was defined by 802.3bm-2015 standards. As for the optical transceiver, it has been developed in the past decades to adapt to the high-speed requirement from 1G to 40G even to 100G. Believe it or not, 100G is coming. How about the 100G optical transceivers? There are many form factors of 100G transceivers including CXP, CFP, CFP2, CPAK, CFP4 and QSFP28. Among them, QSFP28 and CFP optical transceiver are the most

With the increasing demand for a smaller form factor and high density to meet the speed and standard of 10 Gigabit Ethernet, the 10G small form-factor pluggable (10G SFP) fiber optic transceiver just emerges as the times require around 2009. With a more compact form factor, high density and low cost, the series of 10G SFP became the mainstream on the market over the other packing forms of optic modules. It is used for both telecommunication and data communication. 10G SFP can be divided into many types according to different classification standard, such as 10GBASE-SR SFP, 10GBASE-LR SFP, 10GBASE-ER SFP...In this text, we will mainly introduce the definition and differences between 10GBASE-SR SFP and 10GBASE-LR SFP. 10GBASE-SR SFP The letters “SR” stand for “short range”, and thus it intends to transfer over short distance. 10GBASE-SR is the original multimode optics specification, and is still by far the most commonly used. As it uses a single, low cost solid state laser assembly

The SFP-H10GB is high performance, cost effective solution for 10G Ethernet and 10G Fibre Channel applications. It is commonly covered in direct attach copper cable. The main components are one string of copper cable and two connectors at each end. The transceiver modules achieve high port density, configurability and utilization at a very low cost and reduce power budget. The high speed assemblies meet and exceed Gigabit Ethernet and Fibre Channel industry standard requirement of performance and reliability. The main applications of it are Storage Area Networks, Network Attached Storage, Storage Servers, data center cabling infrastructure, high density connections between networking equipment. Twinax Cable All the cable types of SFP-H10G belong to twinax copper cable. Twinax cable is a kind of cable which is very similar with coaxial cable. We can say that twinax cable is the doubled coaxial cable. The word “coaxial” comes from the inner conductor and the outer shield sha

The 1000BASE, also known as the Gigabit Ethernet standard, GbE or GigE. The “1000” in the media type stands for the transmission speed of 1000 Mbit/s. The “BASE” means the based signals can only be Ethernet signals. In order to meet a higher speed demand for most people, the initial standard for Gigabit Ethernet was produced by the IEEE in June 1998 as IEEE 802.3z, and required optical fiber. It provides 10 times faster transfer speed than 100BASE Ethernet. Gigabit Ethernet is today’s industry Ethernet standard for workstations, access points and access -level switches. It can generally be divided into three kinds of standard, IEEE 802.3z, IEE 802.ab and IEEE 802.3ah. There are varied standard series attached to IEEE standards. IEEE 802.3z is commonly referred to as 1000BASE-X, where -X refers to either -CX, -SX, -LX, -EX and etc. 1000BASE-T series are fully covered in IEEE 802.ab. And 1000BASE-LX10 and 1000BASE-BX10 are two more gigabit fiber standards which are belong to IEEE 802.3a

In today’s data center, more bandwidth is needed to support the Internet users. To accommodate the ever-growing number of operating systems and applications, the improvement of data transmission between the serves and switches is in the urgency. Direct Attach Cable (DAC) is the exact this kind of cable to solute this long-troubled problem. As an emerging product, it has a bright prospect beyond it. But what’s is it? What’s the function of it? Some basic information about DAC will be provided in this passage, such the definition, function and types. Introduction to Direct Attach Cable (DAC) Direct Attach Cable (DAC) assembly is a high performance integrated duplex data link for two-directional communication over optical or copper cable for lengths up to 50 m. It provides 4 pairs of data channels at transmission speeds up to 120 Gbit/s. Source of cable and speed are two different ways to categorize DAC. The two main sources of DAC are copper and optical cable. The source of copper i