With the network marketplace gradually develop from 10G to 40G and 100G, 40G/100G optical devices are also trusted in a variety of fields. Within the next couple of years, 100G products will still be popularized and steadily accepted by the marketplace. 100G CFP series optical transceivers can be found in three different package sizes: CFP, CFP4, CFP2 optical transceivers
The 100G CFP optical transceiver is also known as 100G client module, which really is a form factor pluggable module that supports hot plugging. CFP group of optical transceivers from the launch to now experienced a complete of CFP, CFP2 development, and today, CFP4 optical transceiver has been effectively introduced and broadly acclaimed. Weighed against CFP / CFP2 optical transceiver, 100G CFP4 optical transceiver gets the same rate however the transmission efficiency has greatly improved. Besides, the energy consumption is reduced and the price is leaner than CFP2. CFP4 optical transceiver offers irreplaceable advantages. We will discuss it in the next part
Benefits of CFP4 Optical Transceiver
Compared with the original CFP, CFP2 series, CFP4 optical transceiver has apparent advantages
1.Smaller size: CFP4 optical transceiver is one-half of this of CFP2, which is one quarter of CFP. It's the smallest optical transceiver in CFP series optical transceiver
2. Higher transmission efficiency: The first 100G CFP optical transceiver in 10 * 10 mode, through 10 10G channels, to 100G transmission rate, but the current 100G CFP4 optical transceiver with 4 * 25 mode, through 4 25G channel, to achieve 100G transmission, transmission better and more stable
3.Module integration is higher: CFP2 integration is two times CFP, CFP4 integration is four times CFP
4.Lower power consumption and cost: CFP4 optical transceiver works with MSA process and supports the same speed as CFP2 and CFP2s. The transmission efficiency is actually improved, however the power consumption drops drastically, no more than half of the initial, and the machine cost is a lot more than that of CFP2 low
As everybody knows, 100G may be the future trend of network development. With the expansion of the 100G industry, the cost of a 100G optical transceiver may also be reduced correspondingly, thereby reducing the price of deploying the whole 100G network. OEMfibers.com believes that CFP4 series optical transceivers for 100G applications brought will promote the 100G faster development
OEMfibers shares the installation process of the CFP2 optical transceiver. What preparations and precautions ought to be taken before installation
First, preparation before installation To avoid the static electricity produced during the installing the CFP2 optical transceiver or the electronic components in these devices, before installing or removing the CFP2 optical transceiver, put an antistatic wrist strap on the wrist, tighten the lock, and confirm the antistatic wrist. Bring good contact with your skin and make certain the ESD wrist strap can be well grounded
Second, the installation and disassembly of CFP2 optical transceiver
Warning: Usually do not touch the gold finger portion of the CFP2 optical transceiver directly yourself during the procedure for installing or removing the 100G CFP2 modules
1 Turn the metal handle up vertically
2 As shown in the figure, ensure that the transceiver is installed in the right direction (the handle is situated above the fiber interface), and push the transceiver into the slot in the horizontal direction until you hear the sound of the transceiver jamming the slot. The transceiver is in close connection with the slot. Continue steadily to push the transceiver hard
1 Grab the fiber linked to the Brocade 100G-CFP2-LR4-10KM and pull the metal handle right down to the horizontal position
2 Pull the handle and pull the transceiver out in the horizontal direction. When taking out, apply even force in order to avoid harm to the handle
Third, matters needing attention
1 If an optical fiber is inserted in to the CFP2 optical transceiver to be installed or removed, remove the fiber and install or take away the CFP2 transceiver
2 When inserting a CFP2 optical transceiver, first check if the transceiver is properly inserted into the port, and make sure that the direction is correct and there is absolutely no misalignment, offset, etc., and push the transceiver into place
3 When removing the CFP2 optical transceiver , grab the plug in a horizontal direction. If the force direction reaches an angle to the horizontal direction, the plug may be difficult to pull out or even damage the transceiver and the slot
Following the 4CFP2 optical transceiver is installed, if the fiber isn't installed immediately, insert the protective rubber plug of the transceiver in to the optical port on the transceiver
RJ45 SFP module is usually useful to connect two switches with copper interface over Cat5e or Cat6 cable. The next will highlight how exactly to install, connect and remove the RJ45 SFP module at length
Installing A RJ45 SFP Module
.1Attach an ESD preventive wrist strap to your wrist and to a bare metal surface
.2Consider away the copper SFP module from the protective packaging
.3Discover the copper SFP markings on the module and align them before the slot opening
.4Insert the copper SFP module in to the slot on the switch before copper SFP module snaps into position
Connecting A Cat5 Cable
.1Insert Cat5 cable into the RJ45 connector of the copper SFP module
.2Make certain the Cat5 cable has been pushed in to the copper SFP module
Removing A RJ45 SFP Module
.1Attach an ESD preventive wrist strap to your wrist and also to a bare metal surface aswell
.4Put the removed SFP module within the protective packaging or antistatic bag
OEMfibers not merely supplies compatible RJ45 SFP modules which all meet up with the standards or MSA, but also provides reliable 10g/40g modules and patch cables. When you have any needs, please visit OEMfibers.COM
TWDPc, short for transmitter waveform distortion penalty for copper, requires a special algorithm defined by the SFP+ specification. This test is definitely defined as a measure of the deterministic dispersion penalty due to a particular transmitter with reference to the emulated multimode fiber and a well- characterized receiver
The TWDPc script (of 802.3aq, Juniper 10GBASE-LRM ) processes a PRBS9 pattern requiring at least 16 samples per unit interval. Out of concern for the large installed base of equivalent-time oscilloscopes with a record length of around 4000 samples, the requirement for 16 samples per unit interval was relaxed to seven samples per unit interval
The relaxation of the necessity from 16 samples per unit interval to just seven samples per unit interval causes worst-case pessimism of 0.24 dB TWDPc over 30 measurements. For DUTs that already have a high TWDPc, 0.24 dB can be the difference between a pass or a fail result
The TWDPc measurement for SFP+ host transmitter output specifications for copper requires more than 70 Gsamples/s to capture a minimum of seven samples per UI. Real-time oscilloscopes offering higher sampling rates of 100 Gsamples/s or greater have a much higher chance of providing accurate results for TWDPc compared to scopes that only offer lower sampling-rate options
Across the board, it is important to map the SFP+ 10g copper signal’s data-transfer rate to the proper oscilloscope bandwidth requirements to ensure accuracy in measurement and margin testing. With a 10.3125-Gbyte/s data-transfer rate and minimum rise time of 34 ps, a scope with a bandwidth of 16 GHz or more is required to meet the minimum requirements for SFP+. As noted, sampling rate is also a significant consideration for the TWDPc measurement
Among SFP , SFP+ , XFP , 40G, and 100G transceiver modules , there are long-distance transceiver modules. Among them, the long-distance SFP+ optical module uses EML laser components and photodetector components. Various improvements have reduced the power consumption of the optical module and improved accuracy; the long-distance 40G optical module uses a driver and modulation unit in the transmit link to receive The link uses an optical amplifier and a photoelectric conversion unit, which can achieve a maximum transmission distance of 80km, which is far greater than the optical transmission distance of the existing standard 40G pluggable optical module
In the actual use of long-distance transceiver modules, in many cases, the maximum transmission distance of the module cannot be reached. This is because a certain degree of dispersion will occur during the transmission of optical signals in the optical fiber. To solve this problem, long-distance transceiver modules use Only one dominant wavelength is the DFB laser as the light source, which avoids the problem of dispersion.
SFP ,SFP+ , XFP ,25G ,40G and 100G transceiver modules have long-distance transceiver modules. Included in this, the long-distance SFP+ transceiver modules uses EML laser parts and photodetector components, which reduces the energy consumption of the optical module and improves the accuracy; the long-distance 40G optical module runs on the driver and a modulation unit in the transmit link, and receives The link uses optical amplifiers and photoelectric conversion units to achieve a maximum transmission distance of 80km
The size of the transceiver modules is different according to the package. The common ones are SFP, XFP, CFP to the present QSFP, QSFP-DD, etc. But any encapsulated transceiver modules has a case, label, pull ring, etc. Take the SFP transceiver modules as an example to introduce the appearance structure of the transceiver modules
The appearance structure of the transceiver modules (take SFP/eSFP package transceiver modules for example)
This Cisco GLC-SX-MM is a hot plug tool, a gigabit Ethernet interface, and main ports of video equipment connecting to multi-level. It also often switch, wireless local area network (LAN) used between controller and a firewall. It is a short-term pluggable, works with a variety of products and services well, and may mix and match of a port through port basis. This makes it to be able to do simple or very complex network environment. The most important thing is that, in GLC SX MM high performance module, support data rate is 1.25 Gbps. For multimode fiber, it is the most commonly used type of installation in the one of enterprise setup, it can make data transmission up to 500 mm
SFP transceivers usually have different models. This allows users to customize and configure the system, such as OEMfibers can meet this need. Either multimode or single-mode optical fiber cable. Four types of SFP modules is usually SX, this is at 850 nm, in ZX, that is 1550 nm, 1310 nm and DWDM LX. They usually made with copper cable interface, it allows the host equipment through unshielded twisted pair network cable connection. The CWDM also can be used by single fiber optic cable, and they are 1310/1490 upstream and downstream
There are several well-known producers of SFPs and you know these brands, especially in Cisco SFPs, if you intend to expand your network and it is very important. In this way, you can obtain the right gear to complement your system. If you are looking for buying these things, you might as well stick to only one manufacturer, the compatibility problem will not appear. Though, makes the parts is more flexible and interchangeable IEEE standard promotion of various network demand, there is still a minimal assurance about how networking products with Netgear and Cisco’s gadgets. Now, because the cisco is one of the entrepreneurial enterprises and famous brands, when it comes to the network system provides 28 years of service, customers can rest assured that they will become automatically in any job in the network to set up and internal engineers will figure out how to configure them to stabilize the touch
When buying SFP transceivers and related matching network tool, people can look forward to expensive investment, because these are not cheap. Combined with the in-depth research, however, it has the potential for a company to get a good price for purchasing. Importantly, though, they will get experts’ assistance at first before any deal. In this manner, the ideal result is definitely that insurant, delay, and extra fees will not be achieved. The Internet provides the info of the network system expansion, and reliable retailer of network accessories. And that means you will not have a respite in the search for those you need accurate pieces.Read more:www.oemfibers.com
OEMfibers.COM gives a full selection of other brands compatible transceivers, such as for example Cisco, HP, Juniper, Dell, Extreme, Force10, 3Com, Alcatel-Lucent, Allied Telesis and so forth. I'd like to introduce you the set of HP SFP transceiver on OEMfibers website
HP transceiver modules, including HP SFPs, HP XENPAKs, HP XFPs, and HP X2s. HP transceiver modules are hot-swappable devices, which combine the features of a transmitter and receiver right into a single module. The hot-swappable component enables you to change between transceiver modules, without turning off the energy to your device; for instance you could change to a HP transceiver module with a different optical wavelength, or in one which supports copper wire to support for optical dietary fiber if needed. All of the HP transceivers are guaranteed compatible for all HP switch and router products
HP transceiver modules can be found which support data rates from 100Base (100 Mbit/s), up to the 10G Base (10 Gigabit/s). Transceiver modules are also designed for various kinds of cabling such as cat 5 copper, and various grades of optical fibers so please make sure that you are purchasing the right kind of transceiver for network
You have a sizable collection of HP SFP transceivers , including J4858A, J4859A , J4860A, J4858B , J4859B, J4860B, J8177C, J4858C, J4859C, J4860C, J9142B, J9143B, A6515A, J8177B, J9100B, J9099B, JD118B. These HP SFP modules are with different working wavelength and appropriate for different SFP modules
The HP compliant J4859A is a 1000BASE-LX SFP 1310nm 10km transceiver module, offers a low priced high-performance connection. The HP SFP J4859A can be a Class 1 laser transceiver product. The transceiver module is certainly fully complies with the multi-sourcing agreement (MSA) that allows it to work in every MSA compatible platforms
HP SFP Transceiver J4859A Features & Specifications
HP J4858B Compatible 1000BASE-SX SFP Transceiver Module
Data Rate: 1Gbps
Wavelength: 850nm
Transfer Distance: 550m
Connector Type: LC Duplex
(Cable Type: Multi-Mode Fiber (MMF
HP SFP transceiver could be mixed and deployed with HP OEM SFP transceivers for seamless network performance and interoperability. Our cost-effective HP SFP transceiver are sent to worldwide from our factory directly
SFP, SFP+ or QSFP are types of transceivers used for connecting a switch or other network device to copper or fibre cable. They are mostly used to include fiber ports. Which SFP transceiver you select depends upon the cable type, application, needed optical range for the network and the required data transmission rate
?What's an SFP
An SFP, or small form-factor pluggable, is a concise, hot-swappable transceiver made to support 100/1000Mbps Ethernet, Fibre Channel and SONET, among other communication standards. SFP transceivers support speeds up to 4.25Gbps and so are commonly found in telecommunications and data communications applications. SFP ports are located in a variety of devices, from Ethernet switches to routers, NIC cards and firewalls. Small form-factor pluggable specification is founded on IEEE802.3 and SFF-8472
SFP vs SFP+
SFP and SFP+ transceivers are practically identical in proportions and appearance. The principal difference can be that SFP+ can be an updated version that supports higher boosts to 10Gbps. The difference in data rate also makes up about a notable difference in transmission distance-SFP typically includes a longer transmission distance. SFP+ specifications are based on SFF-8431. In conditions of SFP vs SFP+ compatibility, SFP+ ports often accept SFP optics but at a lower life expectancy speed of 1Gbps. Take note, however, that you cannot plug an 10g SFP+ transceiver into an SFP port because SFP+ will not support speeds significantly less than 1Gbps
?Exactly what is a QSFP Port
QSFP, or quad small form-factor pluggable, is a different type of compact, hot-swappable transceiver. It supports Ethernet, Fiber Channel, InfiniBand and SONET/SDH standards with different data rate options. QSFP modules are generally available in a number of different types: 4x1Gbps QSFP, 4x10Gbps QSFP+, 4x28Gbps QSFP28
QSFP+ and QSFP28 will be the latest versions, which support numerous 40Gbps and 100Gbps applications. Both QSFP+ and QSFP28 modules integrate 4 transmit and 4 receiver channels. While QSFP+ supports 4x10Gbps or 1x40Gbps, QSFP28 can do 4x25Gbps, 2x50Gbps or 1x100Gbps, depending on the transceiver used. The specifications for QSFP derive from SFF-8436
?How to Choose SFP Transceivers
Furthermore to SFP vs SFP+ vs QSFP, you’ll also have to consider the application form. SFP transceivers can be found in various types based on what they'll be used for, for example, single-mode vs multimode SFP. Single-mode SFP transceiversuse single-mode fiber, whereas multimode SFPs are appropriate for multimode fiber. Additionally, there are long-reach WDM SFP transceivers for multiplexing, simplex SFPs for single fiber applications, video SFP transceivers for transmission of high-definition video, and PON SFP transceivers for fiber-based access networks. SFPs can be found in commercial and extended operating temperature ranges, with or without extended diagnostics capabilities
SFP Compatibility
Small form-factor pluggable specifications are posted in the SFP Multi-Source Agreement, which allows you to combine and match components from different vendors. However, some IT tools manufacturers sell network devices that support only vendor-specific SFPs. To make sure compatibility, review the vendor’s optics testing centeror ask your vendor to verify compatibility.Such as for example oemfibers.com
A variety of technological advancements and trends are driving the increasing need for 10 GbE in the data center. IT managers are now faced with the challenge of selecting the appropriate 10-gigabit physical media, as 10 Gigabit Ethernet (10GE) is offered in two broad categories, optical and copper, with the latter being the most commonly used means for connectivity in data centers. This article addresses the tradeoffs between your effective choices in copper connectivity 10GBase-T and SFP+ direct attach cable (DAC)
What's 10GBASE-T and Why Choose It
10GBASE-T is an IEEE 802.3an standard which supports the creation of technology that's capable of transmitting 10 Gigabit Ethernet up to 100 meters over four pairs of CAT-5 balanced copper cabling system. It really is an exciting technology that provides end users with cost-effective media to accomplish 10Gbps data rates
Like all BASE-T implementations, 10GBASE-T works for lengths up to 100 meters, giving IT managers a far greater level of flexibility in connecting devices in the info center. With versatility in reach, 10GBASE-T can accommodate either top of the rack, middle of row, or end of the row network topologies. This gives IT managers the most flexibility in server placement since it will work with existing structured cabling systems. Because 10GBASE-T is backward-compatible with 1000BASE-T, it can be deployed in existing 1 GbE switch infrastructures in data centers that are cabled with CAT6 and CAT6a (or above) cabling, enabling IT to keep costs down while offering an easy migration path to 10 GbE
What is SFP+ DAC and the Benefits of It
SFP+ direct attach cable (DAC) is a fixed assembly that is purchased at a given length, with the SFP+ connector modules permanently attached to each end of the cable. SFP+ DAC provides high performance in 10 Gigabit Ethernet network applications, using an enhanced SFP+ connector to send 10 Gbps data through one paired transmitters and receivers over a thin twinax cable or fiber optic cable. The 10G SFP+ Cable is designed to use the same port as an optical transceiver, but compared with optical transceivers, the connector modules mounted on the cable leave out the expensive optical lasers and other electronic components, thus achieving significant cost savings and power savings in short reach applications
SFP+ DAC is a low cost alternative to traditional fiber and twisted-pair copper cabling in data center deployments. SFP+ DAC provides better cable management for high-density deployments and improved electrical characteristics for the most reliable signal transmission
10GBASE-T vs 10GBASE SFP + DAC
SFP+ DAC has considerably lower overall cost when you include switch, NIC and cable, however 10GBase-T has more versatility and may reach longer distance. For data centers, the advantages of SFP+ with DAC are a very good match for today' s requirements and emerging trends. That's why SFP+ DAC is being adopted rapidly as best practice for new data centers. For wiring closets, 10GBase - T will be the obvious choice once the demand for bandwidth becomes more acute and once the price and power for 10GBase-T technology comes down
As one of the most professional optical manufacturers in China, OEMfibers solutions for 10 Gigabit Ethernet include 10G SFP+ direct attach fiber cable, 10G SFP+ direct attach copper cable. Besides, we also provide high-quality 10G SFP transceivers, like EX-SFP-10GE-LR , SFP-10G-LR-X, SFP-10G-SR-X, etc
The copper optical transceiver can be split into SFP copper optical transceiver, SFP+ copper optical transceiver and GBIC copper optical transceiver according to different package types
1.SFP copper optical transceiver: Based on the difference of transmission rate, it may also be divided into 100M copper optical transceiver, Gigabit copper optical transceiver and adaptive copper optical transceiver, and adaptive copper optical transceiver
2.SFP+ copper optical transceiver: also known as 10G copper modules , the speed is 10G, designed for high-speed communication links, mainly used in 10 Gigabit Ethernet, and its power consumption is also very small. In addition, the SFP+ copper optical transceiver may be the first 10G optical module to transmit through a network cable, which can be used in the SFP+ port of a switch or network card to achieve connection with network devices with RJ45 interfaces;
3.GBIC copper optical transceiver: It really is an copper optical transceiver with package type GBIC. The transmission rate can reach 1000Mbps and the utmost transmission distance can reach 100m
The Copper modules could be split into three types: 10G SFP+, 100Base SFP and adaptive copper optical transceiver based on the speed. The next can be an introduction of these three various kinds of copper optical transceiver
100Base SFP copper optical transceiver can be utilized when the network port of these devices is insufficient, that's, the SFP optical port is converted into an RJ45 electrical port utilizing the SFP copper optical transceiver. The electrical interfaces of 100Base SFP copper optical transceiver and SFP optical modules are the same. The difference can be that the external one uses an electrical port (ie RJ45 interface) and one optical port
The 10G SFP+ copper optical transceiver is also called a 10 Gigabit copper optical transceiver. Its rate is certainly 10G. It is created for high-speed communication links and is normally mainly utilized in 10 Gigabit Ethernet. The standards for 10 Gigabit optical modules are IEEE 802.3ae, IEEE 802.3ak and IEEE 802.3an, if distinguished by package form, 10 Gigabit optical modules include 10G SFP+ optical module, BIDI SFP+ optical module, CWDM SFP+ optical module, DWDM SFP+ optical module , 10G XFP optical module, BIDI XFP optical module, CWDM There are nine types of XFP optical modules, DWDM XFP optical modules and 10G X2 optical modules
And its own power consumption is nearly half of the optical module power consumption, so that it is a great power optimization solution. Furthermore, the 10G SFP+ copper optical transceiver is the first 10G optical module to transmit through a network cable. It can be used in the SFP+ port of a switch or network card to accomplish reference to network devices with RJ45 interfaces
10 Gigabit optical module with powerful and high reliability is principally used to realize 10G Ethernet transmission in the super six or seven copper wiring system, the transmission distance can reach 30 meters. Weighed against SFP+ high-speed cable, it could conserve at least 0.5W of power consumption, and its own ports can support both shielded twisted pair and unshielded twisted pair
The adaptive copper optical transceiver is a Gigabit optical module with the capacity of integrating 10/100/1000BASE three rates onto a CMOS chip. It can be utilized for high-speed Ethernet and Gigabit Ethernet, unlike other copper optical transceiver. This copper optical transceiver is more innovative in conditions of speed and can meet different application requirements
Center wavelength: There are currently three main types:
850nm (MM, multi-mode, low cost but short transmission distance, generally can only transmit 500M);
1310nm (SM, single mode, huge loss during transmission but small dispersion, generally used for transmission within 40KM);
1550nm (SM, single-mode, low loss during transmission but large dispersion, generally used for long-distance transmission above 40KM, and will transmit 120KM directly without relay at most).
Transmission distance: Optical transceivers generally have the following specifications: multi-mode 550m, single-mode 15km, 40km, 80km and 120km, etc.
Optical transceivers with transmission distances within 40KM generally use FP lasers;
Optical transceivers with transmission distance ≥40KM generally use DFB lasers.
2.Parameters of Gigabit optical transceiver:
Central wavelength: The central wavelengths of the Gigabit optical transceiver are mainly 1310nm, 1470nm, 1550nm, 1330nm-TX/1270nm-RX. The optical transceiver with the central wavelength of 1550nm is certainly a single-mode optical transceiver, and its transmission distance can reach Above 40km.
Transmission distance: The transmission distance of the Gigabit optical transceiver ranges from 20km to 120km, and the transmission distance of most Gigabit optical transceivers is around 100km.
Interface: Except that the interface of the GBIC Gigabit optical transceiver is normally SC duplex, the interfaces of the remaining 10 Gigabit optical transceivers are LC duplex.
Fiber type: 10 Gigabit optical transceivers are usually used with single-mode fiber, so its fiber type is SMF.
Laser type: The laser types of the Gigabit optical transceiver are mainly DFB 1550nm, DFB BiDi, DFB 1310nm, DFB CWDM, DFB DWDM.
DOM function: Except for GBIC optical transceiver that does not support DOM function, other Gigabit optical transceivers support DOM function. The reason being GBIC optical transceiver is an early optical transceiver.
3.Parameters of 10 Gigabit optical transceiver:
Central wavelength: The central wavelengths of 10 Gigabit optical transceivers are 1470nm, 1550nm, 1590nm, 1330nm-TX/1270nm-RX, of which 1330nm-TX/1270nm-RX are BiDi optical transceivers.
Transmission distance: The transmission distance of 10 Gigabit optical transceivers varies from 20 km to 80 km, but the transmission distance of all 10 Gigabit optical transceivers is 80 km.
Interface: Except that the interface of XENPAK 10 Gigabit optical transceiver is SC duplex, the interface of the other 10 Gigabit optical transceivers are all LC duplex.
Fiber type: The fiber type of the 10 Gigabit optical transceiver is the same as the Gigabit optical transceiver, which is SMF.
Laser type: The laser types of the 10 Gigabit optical transceiver include EML 1550nm, DFB BiDi, EML CWDM, EML DWDM, and DFB CWDM. From the type of laser, we can derive its center wavelength or package type information.
DOM function: 10 Gigabit optical transceivers are equipped with DOM function. This function can help network administrators to monitor all aspects of optical transceiver data in real time. Network administrators can also check these data to ensure that the optical transceiver works normally.
In the application, you should choose 100M optical transceiver, Gigabit optical transceiver or 10G optical transceiver , which mainly depends on the kind of network adapted. For example, if your network is usually 100M Ethernet, you need to use 100M optical transceiver, which is definitely Gigabit Ethernet. Gigabit optical transceivers are required for the network, and 10 Gigabit Ethernet transceivers are used for the 10 Gigabit Ethernet.
Before you start discussing choosing an optical transceiver, we need to have a basic understanding of the general packaging of the optical transceiver. This part will introduce SFP, SFP+, QSFP+QSFP28 and packaged optical transceivers, such as GBIC, XFP, CFP optical transceiver packages, do not stop here.
SFP optical transceiver
As the mini version of the GBIC optical transceiver, the functions of the two transceivers are almost the same, but the volume of the optical transceiver is much smaller than the GBIC optical transceiver. The GBIC optical transceiver is generally used in high-speed transmission applications such as for example SONET/SDH network and 100M/Gigabit Ethernet.
10G SFP+ optical transceiver
The 10g SFP+ optical transceiver is an upgraded version of the SFP optical transceiver. The physical packaging of both transceivers is the same. However, SFP+ optical transceivers can support a transmission rate of 10Gbps. Compared with various other 10G optical transceivers (such as xenpak and XFP optical transceivers ), SFP+ optical transceivers have the smallest volume and are most suitable for high-density port applications. Now it is among the most popular 10G optical transceiver.
40GQSFP/QSFP+ optical transceiver
40G QSFP/QSFP+ optical transceiver meets Ethernet, Fibre Channel, InfiniBand and SONET/SDH standards, using 4Gbit of the data transmission channel 4 40G QSFP optical transceiver/s, 40G QSFP+ four transceivers of the optical transmission channel 10Gbit/ s data.
QSFP28 optical transceiver
Qsfp28 optical transceiver is mainly used for 100g Ethernet and EDR Infiniband applications. It uses four 25gbit/s transmission channels to transmit data. Sometimes this optical transceiver is also called qsfp100 or 100g qsfp optical transceiver.
When purchasing optical transceivers, the following five points are the factors that need to be paid attention to:
Transmission distance
The support of optical transmission transceivers at different distances is different. In general, the transmission distance of multimode optical transmission transceivers is a lot shorter than that of single-mode optical transceivers, and the price is definitely cheaper. For example, the transmission distance of a 10GBASE-SR SFP + optical transceiver can be The transmission distance is certainly 400 meters, and the 10GBASE-LR SFP + optical transceiver can reach 10km. As a result, it is very important to specify the transmission distance to be achieved. In addition, considering the attenuation and dispersion of the optical signal during transmission, it is recommended to use a slightly larger supported transmission distance compared to the actual needs of the optical transceiver. For short-distance connection between racks in the products, it is suggested that you use cheaper than high-speed optical transceiver cable products.
Transmission mode
There are three main data transmission methods for optical transceivers: simplex, half-duplex, and full-duplex. Simplex transmission only supports one-way data transmission; half-duplex transmission allows two-way data transmission, but only one-way transmission at a time; full-duplex transmission allows simultaneous two-way data transmission. It is best to choose an optical transceiver that supports full-duplex transmission.
Transmission medium
Copper and optical cables will be the two most widely used transmission media. For that reason, some optical transceivers are designed with electric ports, and some optical transceivers were created with optical ports. Generally speaking, optical transceivers are used for 10G and 40G Ethernet transmission applications, and optical transceivers are used for electrical ports for 100mb and Gigabit Ethernet applications. Optical ports are usually used for optical transceivers farther than optical transceivers for electrical ports.
Heat resistance
The operating temperature of the optical transceiver should not be too high. If the temperature exceeds the temperature that the optical transceiver can withstand, there could be a link failure. Therefore, an optical transceiver with good heat resistance should be selected.
Some are just buying the optical transceiver often taking into account the above factors, in addition, we also need to consider the operating wavelength, operating speed, and other aspects of brand manufacturers.Read more:www.oemfibers.com
عضو شوید
عضویت سریع
آمار مطالب
آمار بازدید
