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  Armored fiber optic cables are often installed in a network for added mechanical protection, as they have extra reinforcing in the cable housing to prevent damage. Two types of armored fiber optic cables exist: interlocking and corrugated. Interlocking armor is an aluminum armor that is helically wrapped around the cable and found in indoor and indoor/outdoor cables. It offers ruggedness and superior crush resistance. Corrugated armor is a coated steel tape folded around the cable longitudinally. It is found in outdoor cables and offers extra mechanical and rodent protection.   The Structure of an Armored Fiber Optic Cable In basic armored fiber cable designs, the outer sleeve provides protection against wind, solvents, and abrasion. This outer sleeve is usually made of plastic such as polyethylene. The next layer between the sleeve and the inner jacket is an armoring layer of materials that are difficult to cut, ch...

  QSFP+ cables provide a high density, high bandwidth, cost effective solution for a variety of markets and applications including switches, routers, HBA’s, high performance computing and mass storage sub-systems by mfr’s such as IBM, Cisco, qLogic, etc. QSFP+ cables are designed for data rates up to 40Gb/s supporting Fiber Channel, Ethernet, SDH/SONET and Infiniband standards.fiber-mart.com provide a wide variety of 40G QSFP+ Cables, including 40G QSFP+ copper cables, 40G QSFP+ AOC cables, QSFP+ to 4 SFP+ Breakout Cables, QSFP+ to CX4 Copper Cables, QSFP+ to 4 XFP Cables and QSFP+ to Mini SAS cables with different lengths and wire gauges. OEM and ODM are welcomed.   40G QSFP+ Copper Cables:   QSFP+ (Quad Small Form-factor Pluggable Plus) Cable Assemblies are suitable for very short distances and offer a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks. QSFP+ cables are used for 4...

  For understanding the working principle of optical fiber cable clearly, we first further learn the components of an optical fiber cable.   Components of Fiber Cable   A fiber optic cable can be divided into three parts. It is a coaxial cable, and the center most part is called the core which is made out of a very clear glass tube and carries the information. The plastic covering above it which causes the reflection of light signals is called the cladding and the sheathing that protects the optical fiber is called the coating. In a single mode fiber, the core is about 5-10 microns in diameter. A dimension of 5 to 10 microns is equivalent to the millionth of a meter. That small is the core of an optical fiber.   The reason why core is made out of glass is that, glass is incredibly pure so that, even though it is several miles long, light can still make it through. The glass is drawn into a very thin strand, with a thickness comparable to that of a human h...

  Because of major national policy support, to develop the field of fiber optic products, optical fiber gradual decline in the price of the cost, fiber optic installation and construction are also increasingly simple and convenient, plus high-bandwidth optical fiber, a wide range of applications, from external electromagnetic interference and prevent signal leakage, etc., fiber optic system solutions increasingly factored by customers. FTTx is the use of optical fiber as a transmission channel network physical layer information media, mainly as a network of broadband access. x represent different scenarios applications generally include the following:   1. FTTC (Fiber to The Curb/Cell) is mainly for residential service, ONU telecommunications equipment installed in the side of the road junction box, through the coaxial cable extending from ONU transmission CATV signal, twisted-pair copper networks to transmit voice and fiber optic splice mode signal.   2. FTTB (fi...

A fiber optic connector terminates the end of an optical fiber and enables quicker connection and disconnection than splicing. The fibers are mechanically coupled and aligned to ensure that light can pass.   There has been many different connectors introduced through the development of fiber optic components previously many years. A lot of companies and individuals happen to be trying to improve the options that come with certain connectors to be able to gain control of the fiber optic industry, but only few have been successful. As technology increases, various fiber optic components have become less expensive.   There are various color codes for connectors and they have changed throughout the years. In early stages of fiber optic history, orange, black or grey represented multimode connectors and yellow represented single mode. These original codes became complicated with the introduction of metallic connectors so colored boots were developed, like FC and ST. Now, be...

  Fiber Optic Attenuator is a device to reduce the optical fiber power at a certain level by a predetermined factor. The intensity of the signal is described in decibels (dB) over a specific distance the signal travels. Attenuator provides a certain amount of isolation between instruments, thus reducing measurement interaction. This can be done by attenuating the unwanted reflected signal due to imperfect matching. Fiber optic attenuators are used in applications where the optical signal is too strong and needs to be reduced, it is mainly used for fiber optic system of measurement, signal attenuation for short distance communication system and system test, etc. For example, in a multi-wavelength fiber optic system, you need to equalize the optical channel strength so that all the channels have similar power levels. This means to reduce stronger channels’ powers to match lower power channels.   The basic types of optical attenuators are fixed and Variable Attenuators. The m...

  PLC splitter module technology is the latest in passive, fiber-optic component manufacturing. It uses semiconductor (i.e. integrated circuit) fabrication techniques, to build compact, fiber-optic devices. This technique displaces fused-biconical taper devices for high-count splitters. The resulting devices are smaller and more robust.   Planar lightwave circuit (PLC) splitter is a type of optical power management device that is fabricated using silica optical waveguide technology to distribute optical signals from Central Office (CO) to multiple premise locations. It features small size, high reliability, wide operating wavelength range and good channel-to-channel uniformity, and is widely used in PON networks to realize optical signal power splitting. fiber-mart.com provides whole series of 1xN and 2xN splitter products that are tailored for specific applications. All products meet GR-1209-CORE and GR-1221-CORE requirements. Couplers and Splitter: Couplers are typical...

Relationship between the coupler and splitter: In fact, splitter is named for the function of the device, coupler named for its working principle, splitter may be based coupler, and may be based on the waveguide or the separating element, coupler can be done either the splitter, but also can be done WDM, attenuator.   Couplers: Fiber optic couplers either split optical signals into multiple paths or combine multiple signals on one path. Optical signals are more complex than electrical signals, making optical couplers trickier to design than their electrical counterparts. Like electrical currents, a flow of signal carriers, in this case photons, comprise the optical signal. However, an optical signal does not flow through the receiver to the ground. Rather, at the receiver, a detector absorbs the signal flow. Multiple receivers, connected in a series, would receive no signal past the first receiver which would absorb the entire signal. Thus, multiple parallel optical output po...

 With the growing demand of broadband, Passive Optical Network (PON) is the most promising NGN (Next Generation Networking) technology to meet the demand currently. GEPON (Gigabit Ethernet Passive Optical Network) use WDM technology and it is with 1Gbps bandwidth and up to 20km working distance, which is a perfect combination of Ethernet technology and passive optical network technology.   GEPON Technology:   The GEPON (Gigabit Ethernet Passive Optical Network) system is composed of the Optical Line Terminal (OLT), Optical Distribution Network (ODN) and Optical Network Unit (ONU). The ODN consists of only passive elements splitters, fibre connector and fiber optics. PON means passive optic network, EPON is integrated with Ethernet technologies, and GEPON is a Gigabit EPON. GEPON system is designed for telecommunication use. This series of products features high integration, flexible application, easy management, as well as providing QoS function. The fiber network...

 With the exponential growth in communications, caused largely by the wide acceptance of the Internet, many carriers have found their estimates of fiber needs have been highly underestimated. Although most cables included many spare fibers when installed, this growth has used many of them and new capacity is required. Make use of a number of ways to improve this problem, eventually the WDM has shown more cost effective in most cases.   WDM Definition:   Wave Division Multiplexing (WDM) enables multiple data streams of varying wavelengths ("colors") to become combined right into a single fiber, significantly enhancing the overall capacity from the fiber. WDM can be used in applications where considerable amounts of traffic are needed over long distance in carrier networks. There's two types of WDM architectures: Course Wave Division Multiplexing (CWDM) and Dense Wave Division Multiplexing (DWDM).   WDM System Development History:   A WDM system us...

  The easiest coupler, fiber optic splitters device. fiber optic coupler, also known as beam splitter, found in a specific split the wire. It really is split into several beam fiber bundle is dependent upon quartz substrate integrated waveguide optical power distribution device, as with the coaxial cable transmission system, optical network system must also represent the identical connect to branch distribution, and the need of optical fiber branching device from the optical signal, here is the most important passive fiber link equipment, fiber optic series device provides extensive input and output terminal and terminal, especially applicable for passive optical networks (BPON, EPON, GPON, FTTX, FTTH etc.) coupled to the medium density fiberboard (MDF) and the terminal branch of the signal device also can achieve with light.   A fiber-optic splitter is really a device that can take just one fiber optics signal and divides it into multiple signals. Fiber optic splitter is...

  GBIC transceiver is short term for the Gigabit Interface Converter, it is a media conversion device between Gigabit Ethernet and fiber optic networks, using this single device, connections can be made using single- or multi-mode fiber optic ports as well as copper wiring. You'll be able to benefit from it in many point-to-point communications applications that involve interconnecting components and exchanging data between Ethernet and fiber optic networks. Through the GBIC transceiver, Gigabit network equipment can directly connect with copper wires, single mode fiber ports or multimode fiber ports.   Features:   The GBIC design can be used as hot-swap. GBIC is interchangeable products meet international standards. Gigabit switch with GBIC interface designed interchangeable flexible, take into account a big market share in the market. GBIC Series product specifications are complete, including 850nm, 1310nm, 1550nm ,1470-1610nm four series. Requirements, all pro...

  OM means optical multi-mode. Multi-mode optical fiber is a kind of optical fiber mostly employed for communication over short distances, such as inside a building or on the campus. Multi-mode fibers are described using a system of classification determined by the ISO 11801 standard as OM1, OM2, and OM3, which is in line with the modal bandwidth of the multi-mode fiber. Here are the meanings of these: 62.5/125um multimode fiber (OM1), 50/125um multimode fiber (OM2), and laser optimized 50/125um multimode fiber (OM3). This article is mainly about OM3, rapid for OM3 fiber patch cable.   Laser Optimized Multimode Fiber (OM3) has been around since 1999. It supports 300-meter link lengths for 10 Gb/s applications and it is tested to ensure a 2,000 MHz-km Effective Modal Bandwidth (EMB). Its industry-standard 50um core size couples sufficient power from LED sources to support legacy applications like Ethernet, Token Ring, FDDI, and Fast Ethernet for virtually all in-building n...

  Network main transmission capacity continues to expand and improve the rate of optical fiber communication makes the modern information network as the main means of transmission. Dramatic increase in the optical communication network, optical transceiver modules lead to a diversity of needs continuous development technology to meet such application requirements.   Optical module how much you know about it, do not worry, follow my steps slowly to understand. Today, we have to first understand which two optical modules. Cisco SFP vs Cisco XFP .   fiber-mart.com SFP (small form-factor pluggable) is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications. The form factor and electrical interface are specified by a multi-source agreement (MSA). It interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic or copper networking cable. It is a popular industry for...

Fiber optic cables are the medium of choice in telecommunications infrastructure, enabling the transmission of high-speed voice, video, and data traffic in enterprise and service provider networks. Depending on the type of application and the reach to be achieved, various types of fiber may be considered and deployed, such as single mode duplex fiber and multimode duplex fiber optic cable.   Fibers come in several different configurations, each ideally suited to a different use or application. Early fiber designs that are still used today include single-mode and multimode fiber. Since Bell Laboratories invented the concept of application-specific fibers in the mid-1990s, fiber designs for specific network applications have been introduced. These new fiber designs - used primarily for the transmission of communication signals - include Non-Zero Dispersion Fiber (NZDF), Zero Water Peak Fiber (ZWPF), 10-Gbps laser optimized multimode fiber (OM3 fiber optic cable), and fibers desig...

  In the long-distance optical fiber transmission, the fiber cables have a small effect on the optical signal transmission, the transmission quality of optical fiber transmission system mainly depends on the Optical Fiber Multiplexer ’ quality, because optical multiplexer is responsible for electrical/optical and optical/electric conversion and optical transmitting and receiving. Optical fiber multiplexer as terminal equipment of transmission optical signal, usually used in pairs, divided into optical receiver and optical transmitter, optical transmitter is used to convert electrical signals into optical signals to realize electrical/optical conversion, and the optical signal input optical fiber transmission. Optical receiver is used to restore a in the optical fiber for optical signal into electrical signal to realize optical/electric conversion. It’s fit and unfit quality directly affects the whole system, so you need to know something about the performance and application of the...

In the telecommunications industry today, how to install the fiber optics that each optical engineer must learn in their work. Don't froget, when you install the fiber optics, you have to testing your fiber optic system. Optical-fiber tests are one of the final and many important procedures in installing optical networks.   How to set up the fiber optic cable?   Fiber optic cable may be installed indoors or outdoors using several different installation processes. Outdoor cable might be direct buried, pulled or blown into conduit or interdict, or installed aerially between poles. Indoor cables could be installed in raceways, cable trays, put into hangers, pulled into conduit or interdict or blown though special ducts with compressed gas. Cellular phone process will depend on the nature of the installation and also the kind of cable being used. Installation methods for both wire and optical fiber communications cables are similar. Fiber cable is designed to be pulled wi...

 What is fiber optic cable?   A fiber optic cable is really a network cable which contains strands of glass fibers in a insulated casing. These cables are equipped for long distance and very high bandwidth (gigabit speed) network communications. If you want to know more info about fiber optic cable specifications, you can visit the Fiber-mart.com "Fiber Optic Cable Tutorial" within our tutorial.   There are a couple of types of optical fiber cables, Single-mode VS Multimode?   Single-mode fiber provides you with a greater transmission rate and as much as 50 times more distance than multimode, it is more expensive. Single-mode fiber includes a smaller core than multimode fiber-typically Five to ten microns. Merely a single lightwave can be transmitted at a with time. The small core and single lightwave virtually eliminate any distortion that may derive from overlapping light pulses, providing the least signal attenuation and also the highest transmission ...