Filter WDM device is a commonly heard item in the WDM fiber optic network solutions. Then what’s filter WDM or Filter Wavelength Division Multiplexer definition? Take this problem, this article will give a brief introduction of Filter WDM.
At the beginning, we need to know what WDM means. WDM or wavelength-division multiplexing refer to a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths of laser light. This technology is widely used in EDFA, Raman amplifiers, WDM networks and fiber optics instrumentation, applying to an optical carrier whereas frequency-division multiplexing typically applies to a radio carrier.
The Filter WDM or FWDM is a module based on environmentally stable TFF (Thin Film Filter) technology. FWDM filter combines or separates light at different wavelengths in a wide wavelength range, and offer very low insertion loss, low polarization dependence, high isolation and low temperature sensitivity and epoxy free optical path.
According to the different wavelength patterns, the WDM systems are devided into coarse CWDM, coarse wavelength-division multiplexing and DWDM, dense wavelength-division multiplexing. CWDM systems provide up to 8 channels in the 3rd transmission window (C-Band) of silica fibers around 1550 nm. DWDM uses the same transmission window but with denser channel spacing. WDM, DWDM and CWDM are based on the same concept of using multiple wavelengths of light on a single fiber, but differ in the spacing of the wavelengths, number of channels, and the ability to amplify the multiplexed signals in the optical space. EDFA provide an efficient wideband amplification for the C-band, Raman amplification adds a mechanism for amplification in the L-band. The C Band/L band filter wavelength division multiplexer is a micro optics device based on environmentally stable Thin Film Filters technology. It is used to combine or separate C band wavelength signals and L band wavelength signals in DWDM systems.
Basically, the FWDM Flitter series covers the following wavelength widows that widely used in optical fiber systems: 1310/1550nm for WDM or DWDM optical communications, 1480/1550nm for high-power DWDM optical amplifier/EDFA, 1510/1550nm for DWDM multi-channel optical networks, 980/1550nm for or high performance DWDM optical amplifier/EDFA and 1310/1490/1550nm for PON/FTTX/test instrument.
2012年11月9日星期五
Basics of the Cisco GLC-T SFP Modules
In the fiber network, high speed connection is always needed to some type of equipment. As most high speed switches provide small form-factor GBIC slots, a variety of SFP transceivers are needed to handle with. The SFP Gigabit interface converter was developed by Cisco as the current standard. The Cisco compatible transceivers like Cisco GLC-T are used to plug into a Gigable Ethernet port or slot to link the port with the network, allowing for excellent data transmission rates between your Cisco equipments.
GLC-T SFP is a hot pluggable module with RJ45 interface, it is commonly used with 1000Base-T application, when a GLC-T transceiver is plugged into a standard SFP slot, the equipment generally auto detects the device and the hardware will work immediately when the media is connected. This 1000Base-T SFP transceiver supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals. All four pairs in the cable are used with symbol rate at 250Mbps on each pair. This GLC-T SFP is compliant to IEEE 802.3 and its dimension is 0.6 in x 2.8 in x 0.6 in.
Cisco SFP or Cisco compatible SPT is extremely preferred when shopping GBIC modules to make sure they are completely compatible with Cisco equipment. Many honest fiber optic manufacturers like Ingellen Technology Co. provide ranges of Cisco compatible SFP transceivers, The Cisco GLC-T SFPs are guaranteed to be 100% compatible with Cisco equipment and stable performance. The Cisco compatible GLC-T SFPs are widely used for the 1.25 Gigabit Ethernet over Cat 5 cable application and share the common features as below:
Up to 1.25Gb/s bi-directional data links
Hot-pluggable SFP footprint
Extended case temperature range (0°C to +85°C)
Fully metallic enclosure for low EMI
Low power dissipation (1.05 W typical)
Compact RJ-45 connector assembly
Access to physical layer IC via 2-wire serial bus
1000 BASE-T operation in host systems with SERDES interface
10/100/1000Mbps compliant in host systems with SGMII interface
Ingellen, among the reliable Cisco compatible transceivers, has a large quantity of Cisco GLC-T SFP transceivers in stock and ready to ship to you within 24 hours. All of our GLC-T transceivers are tested in-house prior to shipping to insure that they will arrive in perfect physical and working condition. We guarantee the GLC-T transceivers with high performance, cost effective and compliant with the Gigabit Ethernet and 1000- BASE-T standards to work well with your Cisco equipments.
GLC-T SFP is a hot pluggable module with RJ45 interface, it is commonly used with 1000Base-T application, when a GLC-T transceiver is plugged into a standard SFP slot, the equipment generally auto detects the device and the hardware will work immediately when the media is connected. This 1000Base-T SFP transceiver supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals. All four pairs in the cable are used with symbol rate at 250Mbps on each pair. This GLC-T SFP is compliant to IEEE 802.3 and its dimension is 0.6 in x 2.8 in x 0.6 in.
Cisco SFP or Cisco compatible SPT is extremely preferred when shopping GBIC modules to make sure they are completely compatible with Cisco equipment. Many honest fiber optic manufacturers like Ingellen Technology Co. provide ranges of Cisco compatible SFP transceivers, The Cisco GLC-T SFPs are guaranteed to be 100% compatible with Cisco equipment and stable performance. The Cisco compatible GLC-T SFPs are widely used for the 1.25 Gigabit Ethernet over Cat 5 cable application and share the common features as below:
Up to 1.25Gb/s bi-directional data links
Hot-pluggable SFP footprint
Extended case temperature range (0°C to +85°C)
Fully metallic enclosure for low EMI
Low power dissipation (1.05 W typical)
Compact RJ-45 connector assembly
Access to physical layer IC via 2-wire serial bus
1000 BASE-T operation in host systems with SERDES interface
10/100/1000Mbps compliant in host systems with SGMII interface
Ingellen, among the reliable Cisco compatible transceivers, has a large quantity of Cisco GLC-T SFP transceivers in stock and ready to ship to you within 24 hours. All of our GLC-T transceivers are tested in-house prior to shipping to insure that they will arrive in perfect physical and working condition. We guarantee the GLC-T transceivers with high performance, cost effective and compliant with the Gigabit Ethernet and 1000- BASE-T standards to work well with your Cisco equipments.
2012年11月7日星期三
Types Of Fiber Patch Cables - Ingellen
Fiber Patch Cable is also called fiber jumper or fiber patch cord. Specifically, it is like joints used to join two kinds of optic cables or to make a third connection out. Fiber patch cable is mainly used in computer work station to outlet and fiber optic patch panels or optical cross connect distribution center. Choosing the right fiber optic patch cable means the compatibility of the patch cables with the original cable. It requires the rate of data transfer, the optic fiber mode, termination types, etc. must coincident with the original cables, otherwise, there will cause a delay or total information loss in the communication.?Know the different type of fiber optic patch cables is essential to choosing the right fiber patch cord for use. Next we will pay a priority to introducing the types of fiber patch cables:
Generally, fiber patch cables are categorized into different groups based on optical fiber mode, fiber cable type, termination types, connector polishing styles and fiber cable sizes. To specify this introduction, I will bring in fiber patch cable types from Ingellen.com for your reference.
According to Fiber Optic Mode
Single mode
Single mode fiber patch cables use 9/125 micron bulk single mode cable and single mode connectors at both ends. SM 9/125 Fiber Patch Cable from Ingellen is a typical single mode fiber patch cable. Jacket color of this kind of patch cable is usually yellow.
Multimode
Multimode fiber patch cables use 62.5/125 micron or 50/125 micron cable and are terminated with multimode optic connectors at both ends. OM1 62.5/125 Fiber Patch Cable, OM2 50/125 Fiber Patch Cable of Ingellen are two widely used multimode fiber patch cable. OM2 50/125 multimode fiber patch cables offer a lower insertion loss than OM1 62.5/125 fiber patch cords. The cable jacket is usually orange.
Single mode
Single mode fiber patch cables use 9/125 micron bulk single mode cable and single mode connectors at both ends. SM 9/125 Fiber Patch Cable from Ingellen is a typical single mode fiber patch cable. Jacket color of this kind of patch cable is usually yellow.
Multimode
Multimode fiber patch cables use 62.5/125 micron or 50/125 micron cable and are terminated with multimode optic connectors at both ends. OM1 62.5/125 Fiber Patch Cable, OM2 50/125 Fiber Patch Cable of Ingellen are two widely used multimode fiber patch cable. OM2 50/125 multimode fiber patch cables offer a lower insertion loss than OM1 62.5/125 fiber patch cords. The cable jacket is usually orange.
10G Multimode
10G fiber optic patch cables are specially designed 50/125 micron fiber optimized for 850nm VCSEL laser based 10Gig Ethernet. 10G fiber patch cable is rated for distances up to 300 meters using 850nm Vertical Cavity Surface Emitting Lasers (VCSEL). Ingellen provides 10G OM3 fiber patch cable that could work well with both VCSEL laser and LED sources and all of them are 100% optically tested for maximum performance. The cable jacket of this type is usually aqua.
10G fiber optic patch cables are specially designed 50/125 micron fiber optimized for 850nm VCSEL laser based 10Gig Ethernet. 10G fiber patch cable is rated for distances up to 300 meters using 850nm Vertical Cavity Surface Emitting Lasers (VCSEL). Ingellen provides 10G OM3 fiber patch cable that could work well with both VCSEL laser and LED sources and all of them are 100% optically tested for maximum performance. The cable jacket of this type is usually aqua.
According to the Fiber Cable Type
Simplex fiber patch cable
Simplex fiber patch cable means the patch cord has one single fiber and connector on each end. Ingellen fiber optic patch cable has simplex type for OM2 50/125, OM1 62.5/125 and 10G OM3 fiber patch cable.
Simplex fiber patch cable
Simplex fiber patch cable means the patch cord has one single fiber and connector on each end. Ingellen fiber optic patch cable has simplex type for OM2 50/125, OM1 62.5/125 and 10G OM3 fiber patch cable.
Duplex fiber patch cable
Duplex fiber patch cable has two fibers and two connectors on each end. Just like Ingellen 10G OM3 Duplex Patch Cable, OM1 62.5/125 Duplex Patch Cable, OM2 50/125 Duplex Patch Cable and Zipcord Duplex Optical Fiber Patch Cable. Each fiber is marked "A" or "B" or different colored connector boots are used to mark polarity.
Duplex fiber patch cable has two fibers and two connectors on each end. Just like Ingellen 10G OM3 Duplex Patch Cable, OM1 62.5/125 Duplex Patch Cable, OM2 50/125 Duplex Patch Cable and Zipcord Duplex Optical Fiber Patch Cable. Each fiber is marked "A" or "B" or different colored connector boots are used to mark polarity.
Ribbon fan-out cable assembly
For ribbon fan-out cable assembly, 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.
For ribbon fan-out cable assembly, 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.
According to the Termination Types
Same connector types
Same connect type means the fiber optic connector on both end is same. Such as ST, SC, LC, FC, MU etc.
Hybrid connector types
Hybrid connector type means the fiber optic connector on each end of the fiber patch cable is different to each other. That is in one end it can be FC, the other end could be ST, SC, or LC etc. Just like FC/ST 10G OM3 Duplex Patch Cable, FC/SC 10G OM3 Duplex Patch Cable, FC/LC 10G OM3 Duplex Patch Cable.
Same connector types
Same connect type means the fiber optic connector on both end is same. Such as ST, SC, LC, FC, MU etc.
Hybrid connector types
Hybrid connector type means the fiber optic connector on each end of the fiber patch cable is different to each other. That is in one end it can be FC, the other end could be ST, SC, or LC etc. Just like FC/ST 10G OM3 Duplex Patch Cable, FC/SC 10G OM3 Duplex Patch Cable, FC/LC 10G OM3 Duplex Patch Cable.
According to Connector Polishing Styles
Fiber optic connectors are designed and polished to different shapes to minimize back reflection. This is particularly important in single mode applications. Typical back reflection grades are - 30dB, -40dB, -50dB and -60dB.
Ingellen provides Tight Buffer Optical Fiber Patch Cable, Loose Tube Optical Fiber Patch Cable and Zipcord Duplex Optical Fiber Patch Cable with different fiber cable jacketsize for your particular application.
Fiber optic connectors are designed and polished to different shapes to minimize back reflection. This is particularly important in single mode applications. Typical back reflection grades are - 30dB, -40dB, -50dB and -60dB.
Ingellen provides Tight Buffer Optical Fiber Patch Cable, Loose Tube Optical Fiber Patch Cable and Zipcord Duplex Optical Fiber Patch Cable with different fiber cable jacketsize for your particular application.
2012年11月6日星期二
Spectroscopic Principle of An Optical Splitter
Fiber splitter or fiber optic splitter is one of the most important passive devices in the fiber network, an optical fiber having a plurality of inputs and a plurality of output terminals tandem device, commonly used in M × N to indicate a splitter M inputs and N outputs. The optical splitter used in the CATV system, are generally 1 × 2, 1 × 3, and composed of them 1 x N optical splitter. Just the same with the coaxial cable transmission system, in a optical network system, an optic signal of a optical network system also needs to coupled to the branch distribution, which require a important fiber optic passive component - the optical splitter.
Optical splitter can be divided into two types according to the spectroscopic principle: Fused Biconical Taper (FBT) and Planar Lightwave Circuit (PLC). FBT splitter is to side fuse two or more fiber together. While the PLC splitter is a micro-optical components product, which adapt of the lithography, forming an optical waveguide in the medium or on a semiconductor substrate. Basically the two type of fiber splitter share the similar spectroscopic principle. Both of them are coupled to each other by changing the optical fiber between the evanescent field (the degree of coupling, the coupling length) as well as to change the radius of the optical slender to achieve different size branching amount. On the contrary, things that combining multiple optical signals or vice versa into one single can be called Fiber synthesizer.
FTB Coupler
The working principle of FTB method is to fuse two or more optical fiber that without coating layer together by melting them under a high temperature environment, stretching the both sides to form a double cone zonespecial waveguide structured. Different spectral radios can be obtained by controlling the length of the fiber torsion angle and stretched. Finally, pull the cone on the quartz substrate with a curable adhesive curing and insert into a stainless brass. That’s how an FTB coupler formed.
There are some disadvantages of this method. Due to the coefficient of thermal expansion of the curing adhesive with a quartz substrate, the stainless steel tube inconsistencies, the degree of thermal expansion and contraction will be inconsistent when the ambient temperature changes. This is likely to cause damages to the optical splitter, which would become worse if in the wild. This is also the main reason that this fiber optic splitter is easy to get damaged. However, due to the making method of the FBT Coupler is simple, inexpensive, easy to connect to external fiber as a whole, and resistance in for-mechanical vibration and temperature changes, and other advantages, it has become the mainstream manufacturing technology in current the market.
PLC Splitter
The PLC splitter adopted semiconductor production process like photolithography, etching, developing technology and more. Waveguide array is located on the upper surface of the chips, the shunt function is integrated on the chip, which is implemented 1:1 branching on a chip. Then then coupled the multi-channel optical fiber array in the input terminal and output terminal of the chip, respectively, and last encapsulating.
Comparing with FTB coupler, PLC splitter shares some obvious advantages: meeting transmission needs of different wavelengths, compact structure, small size, uniform spectroscopic etc. At the same time, the main drawback of the PLC splitter is the complicated production process while the chip monopoly by several companies, as well as the cost disadvantages versus the FBT splitters.
Optical splitter can be divided into two types according to the spectroscopic principle: Fused Biconical Taper (FBT) and Planar Lightwave Circuit (PLC). FBT splitter is to side fuse two or more fiber together. While the PLC splitter is a micro-optical components product, which adapt of the lithography, forming an optical waveguide in the medium or on a semiconductor substrate. Basically the two type of fiber splitter share the similar spectroscopic principle. Both of them are coupled to each other by changing the optical fiber between the evanescent field (the degree of coupling, the coupling length) as well as to change the radius of the optical slender to achieve different size branching amount. On the contrary, things that combining multiple optical signals or vice versa into one single can be called Fiber synthesizer.
FTB Coupler
The working principle of FTB method is to fuse two or more optical fiber that without coating layer together by melting them under a high temperature environment, stretching the both sides to form a double cone zonespecial waveguide structured. Different spectral radios can be obtained by controlling the length of the fiber torsion angle and stretched. Finally, pull the cone on the quartz substrate with a curable adhesive curing and insert into a stainless brass. That’s how an FTB coupler formed.
There are some disadvantages of this method. Due to the coefficient of thermal expansion of the curing adhesive with a quartz substrate, the stainless steel tube inconsistencies, the degree of thermal expansion and contraction will be inconsistent when the ambient temperature changes. This is likely to cause damages to the optical splitter, which would become worse if in the wild. This is also the main reason that this fiber optic splitter is easy to get damaged. However, due to the making method of the FBT Coupler is simple, inexpensive, easy to connect to external fiber as a whole, and resistance in for-mechanical vibration and temperature changes, and other advantages, it has become the mainstream manufacturing technology in current the market.
PLC Splitter
The PLC splitter adopted semiconductor production process like photolithography, etching, developing technology and more. Waveguide array is located on the upper surface of the chips, the shunt function is integrated on the chip, which is implemented 1:1 branching on a chip. Then then coupled the multi-channel optical fiber array in the input terminal and output terminal of the chip, respectively, and last encapsulating.
Comparing with FTB coupler, PLC splitter shares some obvious advantages: meeting transmission needs of different wavelengths, compact structure, small size, uniform spectroscopic etc. At the same time, the main drawback of the PLC splitter is the complicated production process while the chip monopoly by several companies, as well as the cost disadvantages versus the FBT splitters.
Things about Passive Components and Active Components
Passive component and active component are two commonly heard items in electronic systems. But what's exactly the differences between them or what passive components and active components about? Now let's discuss about this topic here.
Generally, a passive component, depending on field, may be either a component that consumes energy, or a component that is incapable of power gain. Passivity is a property of engineering systems and most commonly found in analog electronics and control systems. Active is the antonym of passive, active components can lead to the increase of power in the electronic systems. To be specifically, passive components and active components are basic electronic elements, the main difference between active and passive components is that the active ones have the ability to amplify signal, whereas passive components do not amplify signal automatically.
Active components
Active components require a control signal and a minimum voltage to perform, like controlling the flow of current. Active components can change their electrical behavior, according to the changes in their input signal. They are used in dynamic applications like amplification switching, rectification and modulation as well as in almost all business sectors, which use computers, power supplies, defense electronics, telecommunication devices, automotive electronics and business machines. Buyers should understand the difference between active and passive components before purchasing. Usually, the active components are more sensitive and prone to damages. Hence they require immense care while packaging and handling.
Passive components
As a typical electronic component, resistors, transformers, passive transducers and capacitors are examples of passive components which is commonly used in electronic engineering and control systems for basis applications such as storing electrical charge, limiting current and suppressing current surges. A passive component does not change their electrical behavior with the application of the signal.
Fiber Optic Passive Components are widely used in fiber optic network industry. Fiber optic passive component is essentially different from the electronic passive component. As one of the basic type of fiber optic components, fiber optic passive components includes MUX/Demux( CWDM MUX/Demux, DWDM Mux/Demux), CWDM OADM, DWDM OADM, Fiber Optic Attenuator, Fiber Optic Patch Cord, Fiber Optic Pigtail, Fiber Optic Connector, Fiber Optic Adaptor, etc. The passive components are fiber optic components with the process complying with the basic laws of optic, the theory of ray of light and electromagnetic wave, the technical indicators, a variety of computational formulas and a number of testing methods, which is closely related to the fiber optics and integrated optics. Therefore, In the fiber optic cable, it serves as a link, distribution, isolation, filtering and so on. Passive fiber optic components mans they work without external power, while active fiber optic components need external power to work.
Generally, a passive component, depending on field, may be either a component that consumes energy, or a component that is incapable of power gain. Passivity is a property of engineering systems and most commonly found in analog electronics and control systems. Active is the antonym of passive, active components can lead to the increase of power in the electronic systems. To be specifically, passive components and active components are basic electronic elements, the main difference between active and passive components is that the active ones have the ability to amplify signal, whereas passive components do not amplify signal automatically.
Active components
Active components require a control signal and a minimum voltage to perform, like controlling the flow of current. Active components can change their electrical behavior, according to the changes in their input signal. They are used in dynamic applications like amplification switching, rectification and modulation as well as in almost all business sectors, which use computers, power supplies, defense electronics, telecommunication devices, automotive electronics and business machines. Buyers should understand the difference between active and passive components before purchasing. Usually, the active components are more sensitive and prone to damages. Hence they require immense care while packaging and handling.
Passive components
As a typical electronic component, resistors, transformers, passive transducers and capacitors are examples of passive components which is commonly used in electronic engineering and control systems for basis applications such as storing electrical charge, limiting current and suppressing current surges. A passive component does not change their electrical behavior with the application of the signal.
Fiber Optic Passive Components are widely used in fiber optic network industry. Fiber optic passive component is essentially different from the electronic passive component. As one of the basic type of fiber optic components, fiber optic passive components includes MUX/Demux( CWDM MUX/Demux, DWDM Mux/Demux), CWDM OADM, DWDM OADM, Fiber Optic Attenuator, Fiber Optic Patch Cord, Fiber Optic Pigtail, Fiber Optic Connector, Fiber Optic Adaptor, etc. The passive components are fiber optic components with the process complying with the basic laws of optic, the theory of ray of light and electromagnetic wave, the technical indicators, a variety of computational formulas and a number of testing methods, which is closely related to the fiber optics and integrated optics. Therefore, In the fiber optic cable, it serves as a link, distribution, isolation, filtering and so on. Passive fiber optic components mans they work without external power, while active fiber optic components need external power to work.
What's the Difference between Smart and Managed Switches
For most people, as I know are asking about some questions about smart and management switches or even what’s the difference about unmanaged switches and managed switches. Now this article will give you a overview on what’s unmanaged switch, management switch and what exactly the difference between smart or managed switch.
Unmanaged switch, this switch has no configuration interface or options, which is typically found in SOHO or home environments.
Managed switch, this switch allows access to one or more interfaces for the purpose of configuration or management of features such as Spanning Tree Protocol, port speed, VLANs, etc. Managed switches feature built-in support for remote setup and management.
Smart switch is Another class of switches is the Smart Switch, which offers some of the capabilities that managed switches offer but are more limited and less expensive that a managed switch. Next let's define the difference between Smart and Managed Switches. Basically, smart swith and managed switches have features that can be configured to perform network management functions. These functions can be as simple as setting the link speed of a port or disabling it entirely, or more complex like limiting bandwidth or grouping devices into VLANs.
At one point, the term "smart" switch was coined when network product manufacturers first introduced lower-priced managed switches. Part of the reason for the new term was to just get some attention for these new products. But a more important reason was to attempt to create a differentiation between the new (and typically less-expensive) devices and older (and typically more expensive) products.
Besides, the switch's OSL layer of operation is the second point you should take to distinguish the two switches. In general, smart switches are Layer 2 devices, just like unmanaged switches. Both operate at the Data Link layer, which handles physical addressing. Simply put, Layer 2 devices can look only at the MAC address and LLC portions of a data packet's Ethernet frame. While the management switch is in both Layer 2 and Layer 3 flavors. Layer 3 switches operate at the Network Layer, which provides network path determination and logical addressing functions. In most cases, this means that Layer 3 switches handle packets based on their IP address, which allows them to perform basic routing functions.
Unmanaged switch, this switch has no configuration interface or options, which is typically found in SOHO or home environments.
Managed switch, this switch allows access to one or more interfaces for the purpose of configuration or management of features such as Spanning Tree Protocol, port speed, VLANs, etc. Managed switches feature built-in support for remote setup and management.
Smart switch is Another class of switches is the Smart Switch, which offers some of the capabilities that managed switches offer but are more limited and less expensive that a managed switch. Next let's define the difference between Smart and Managed Switches. Basically, smart swith and managed switches have features that can be configured to perform network management functions. These functions can be as simple as setting the link speed of a port or disabling it entirely, or more complex like limiting bandwidth or grouping devices into VLANs.
At one point, the term "smart" switch was coined when network product manufacturers first introduced lower-priced managed switches. Part of the reason for the new term was to just get some attention for these new products. But a more important reason was to attempt to create a differentiation between the new (and typically less-expensive) devices and older (and typically more expensive) products.
Besides, the switch's OSL layer of operation is the second point you should take to distinguish the two switches. In general, smart switches are Layer 2 devices, just like unmanaged switches. Both operate at the Data Link layer, which handles physical addressing. Simply put, Layer 2 devices can look only at the MAC address and LLC portions of a data packet's Ethernet frame. While the management switch is in both Layer 2 and Layer 3 flavors. Layer 3 switches operate at the Network Layer, which provides network path determination and logical addressing functions. In most cases, this means that Layer 3 switches handle packets based on their IP address, which allows them to perform basic routing functions.
Cisco SFP 1000 Base Transceiver Modules
SFP refer to Small Form-Factor Pluggable, SFP transceiver is an upgraded version of GBIC transceiver, Which is also called Mini GBIC. Cisco SFP is widely used with their routers and switches, the Cisco Systems Inc is world famous leading company supplying network and communications products and service. Cisco is one of the top 500 companies in the world. Nowadays, 70 percent of the internet traffic goes through Cisco products. Cisco SFP transceiver is hot swappable and generally the SFP module are with LC fiber connector interface. Cisco SFP includes a wide range of the transceivers with different working wavelength and distance.
Ingellen provide a variety of Cisco SFP transceivers that can be used and interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, etc. on a port-by-port basis. Next I will mainly give a introduction of three general Cisco SFPs: GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM.
Cisco GLC LH SM is a SFP fiber optic transceiver working at 1310nm wavelength, it could use with both multimode optical fiber and single mode optical fiber, it is small size transceiver with LC interface and it is hot swappable, easy to use, no need further configuration. GLC LH SM is used in Gigabit network and its max working distance is 40km over SMF at 1.25Gbps transfer rate.
Cisco GLC SX MM is a commonly used SFP transceiver which is 1000Base-SX SFP for multimode fiber and works at 850nm wavelength. It can reach 550 meter working distance via 50/125 multimode fiber, and 220 meters on 62.5/125 multimode fibers. GLC SX MM SFP is hot swappable module that fits for Gigabit Ethernet port or slot and link the port with the network. Ingellen supply Cisco equivalent GLC SX MM SFP fiber optic transceiver at very competitive prices and fast delivery.
Cisco GLC ZX SM SFP is used for 1000Base-ZX application, it works with single mode optical fiber at 1550nm working wavelength. Cisco GLC ZX SM could reach a max 120 km working distance over single mode fiber. This mini GBIC is carrier-class quality and can be fully trusted for your most demanding LAN/WAN applications, voice projects, or network deployments. Ingellen provide two kind of GLC ZX SM with 120 Km and 70Km transmission distance, Cisco 1000Base-ZX 120KM SFP and Cisco 1000Base-ZX 70KM SFP. Ingellen provide two kind of GLC-LH-SM with 10 Km and 40Km transmission distance, Cisco?1000Base-LX/LH 10 KM SFP and Cisco 1000Base-LX/LH 40KM SFP.
Cisco GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM SFP Specifications:
Product Number: GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM
Product Name: Cisco 1000Base-LX/LH 40/10 KM SFP, Cisco 1000Base-SX SFP, Cisco 1000Base-ZX 70/120KM SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1.25Gbps
Wavelength: 1310nm, 850nm, 1550nm
Datarange: 40km/10km, 550m, 70km/120km
Connector Type: LC Duplex
Cable Type: Single-Mode Fiber (SMF), Multi-Mode Fiber (MMF)
Standard Operation Temperature: 0~70 °C
Compatiblity: 100% Cisco Compatible
In fact, Cisco SFP transceivers provided by Ingellen have never limited here, Ingellen also provide many other Cisco SFP transceivers like GLC-T, SFP GE-S, SFP GE-L, DS-CWDM4G1470-1610, CWDM-SFP-1470-1610 and more. These SFP transceivers are capable of supporting SONET, Gigabit Ethernet, Fibre Channel, Switch to Switch interface, Switched backplane applications, Router/Server interface and other optical transmission systems applications. Welcome to visit Ingellen official website to know more at www.ingellen.com.
Ingellen provide a variety of Cisco SFP transceivers that can be used and interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, etc. on a port-by-port basis. Next I will mainly give a introduction of three general Cisco SFPs: GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM.
Cisco GLC LH SM is a SFP fiber optic transceiver working at 1310nm wavelength, it could use with both multimode optical fiber and single mode optical fiber, it is small size transceiver with LC interface and it is hot swappable, easy to use, no need further configuration. GLC LH SM is used in Gigabit network and its max working distance is 40km over SMF at 1.25Gbps transfer rate.
Cisco GLC SX MM is a commonly used SFP transceiver which is 1000Base-SX SFP for multimode fiber and works at 850nm wavelength. It can reach 550 meter working distance via 50/125 multimode fiber, and 220 meters on 62.5/125 multimode fibers. GLC SX MM SFP is hot swappable module that fits for Gigabit Ethernet port or slot and link the port with the network. Ingellen supply Cisco equivalent GLC SX MM SFP fiber optic transceiver at very competitive prices and fast delivery.
Cisco GLC ZX SM SFP is used for 1000Base-ZX application, it works with single mode optical fiber at 1550nm working wavelength. Cisco GLC ZX SM could reach a max 120 km working distance over single mode fiber. This mini GBIC is carrier-class quality and can be fully trusted for your most demanding LAN/WAN applications, voice projects, or network deployments. Ingellen provide two kind of GLC ZX SM with 120 Km and 70Km transmission distance, Cisco 1000Base-ZX 120KM SFP and Cisco 1000Base-ZX 70KM SFP. Ingellen provide two kind of GLC-LH-SM with 10 Km and 40Km transmission distance, Cisco?1000Base-LX/LH 10 KM SFP and Cisco 1000Base-LX/LH 40KM SFP.
Cisco GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM SFP Specifications:
Product Number: GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM
Product Name: Cisco 1000Base-LX/LH 40/10 KM SFP, Cisco 1000Base-SX SFP, Cisco 1000Base-ZX 70/120KM SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1.25Gbps
Wavelength: 1310nm, 850nm, 1550nm
Datarange: 40km/10km, 550m, 70km/120km
Connector Type: LC Duplex
Cable Type: Single-Mode Fiber (SMF), Multi-Mode Fiber (MMF)
Standard Operation Temperature: 0~70 °C
Compatiblity: 100% Cisco Compatible
In fact, Cisco SFP transceivers provided by Ingellen have never limited here, Ingellen also provide many other Cisco SFP transceivers like GLC-T, SFP GE-S, SFP GE-L, DS-CWDM4G1470-1610, CWDM-SFP-1470-1610 and more. These SFP transceivers are capable of supporting SONET, Gigabit Ethernet, Fibre Channel, Switch to Switch interface, Switched backplane applications, Router/Server interface and other optical transmission systems applications. Welcome to visit Ingellen official website to know more at www.ingellen.com.
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