Fiber Optical Communication

As we know, the 10G SFP+ interface offers the highest density, lowest cost and lowest power 10 Gigabit Etheet solution, while the SFP+ transceiver is published and available for achieving the migration from 1G to 10G network. However, if the mass 10G migration is required, the total cost for SFP+ fiber optical solution is still high. In order to reduce the cost for 10G migration, experts come up with the SFP+ twinax direct attach cable solution for 10G short distance transmission as a ideal cost effective alteative to the fiber optical solution. In this paper, it will mainly talk about the SFP+ twinax direct attach cable, which may be useful for you to deploy a 10G short distance transmission in a cost effective manner. Whatrsquo;s the SFP+ Twinax Direct Attach Cable? SFP+ twinax direct attach cable, also referred to as SFP+ DAC or 10G twinax cable, is a copper interconnect using a twinax cable assembly that connects directly into an SFP+ housing, designed for 10G short distance tr, ...ادامه مطلب

With the growing network requirements for higher network speed, greater scalability, higher performance and reliability, 40G network gradually becomes a better choice for most data centers. Under this condition, the 40G QSFP+ copper direct attach cable(DAC) came into market, which is designed for delivering an aggregate data bandwidth of 40Gb/s in a short distance and high density cabling interconnect system. As a highly cost-effective solution for 40G to 40G or 10G to 40G connection, there is no doubt that the QSFP DAC twinax cableplays an important role in 40G cabling for better meeting the increasing requirements. QSFP DAC Twinax Cable Overview QSFP DAC twinax cable is also referred to as QSFP+ copper direct attach cable or QSFP copper cable, used for connecting switch to switch or switch to sever. It can be simply divided into three types, QSFP+ to QSFP+ direct attach copper cable, QSFP+ to 4 SFP+ direct attach breakout copper cable and QSFP+ to 4 XFP breakout copper cable. Since t, ...ادامه مطلب

When choosing QSFP+ transceivers for designing 40G Etheet network, you may hear the descriptions like ldquo;Single-mode QSFP+rdquo;, ldquo;Multimode QSFP+rdquo;. Are you familiar with these modules? What do these words stand for? Whatrsquo;s the difference between these two QSFP+ modules? Which one should you choose to deploy your 40G Etheet network? And what should be noticed when using them? In fact, the words single-mode and multimode here mean the different types of optical fibers that QSFP+ transceivers work with. For instance, single-mode QSFP+ means that QSFP+ transceivers run through single-mode fibers (SMF), while multimode QSFP+ will work with multimode fibers (MMF). In this article, we will have a discussion about the differences between the two QSFP+ transceivers and introduce the notice when using them. Single-mode QSFP+ Overview Generally, single-mode QSFP+ transceivers mainly work in 1310nm wavelength, mostly applied for 40G long distances transmission, such as, 1km,, ...ادامه مطلب

As we know, duplex LC interfaces are widely used in 10G SFP modules, for instance, SFP-10G-LR-S module and SFP-10G-SR module, which occupy the majority of 10G module market. However, for 40G QSFP+ modules, both LC interface and MTP/MPO interface play important roles in meeting the high speed transmission, which are available on 40G QSFP module market. What are the differences between these two interface types? Which one should be chosen when deploying 40G Etheet network? Do they function similarly in the same application? Letrsquo;s talk about this topics and find one kind of 40G QSFP+ module with the most suitable interface type so as to make a smooth 40G connection for our network. Differences Between LC Interface and MTP/MPO Interface From the following figure, we can see the examples of QSFP+ modules with two different interfaces. The left one is the module with with LC interface, while the right one is with MTP/MPO interface. The differences between these two kinds of modules va, ...ادامه مطلب

As we all now, fiber optic cable jumper plays an important role in Etheet network connection, which becomes more and more diversified to satisfy the different connection requirements in recent years. For instance, standard fiber patch cable like single mode patch cable and multimode patch cable, special fiber patch cable like mode conditioning patch cable and bend insensitive patch cable, etc. Among these various fiber patch cables, mode conditioning patch cable has been one of the most popularly used fiber patch cable due to its unique features and advantages, which will be introduced in the following text. What Is Mode Conditioning Fiber Patch Cable? Mode conditioning patch cable is a special kind of duplex fiber patch cable that consists of two fibers, a conditioned fiber and a non-conditioned fiber, capped at either end with connectors. In the conditioned fiber, a single mode fiber and a multimode fiber are fusion spliced in an offset manner, with a precise core alignment and ang, ...ادامه مطلب

Are the Etheet patch cables you purchase from the local or online stores always at the proper length? Or not so suitable for your network because they are too long or too short that donrsquo;t meet your expectations? Have you ever considered making the improper Etheet patch cable into a suitable one by yourself, so that you can deploy your network by using you own Etheet patch cable and save a lot of money, time and space? In fact, terminating the Etheet patch cables is not so difficult but very useful for fast network deployment, which will be presented in the post. Meanwhile, there are several important things you should take into consideration before making the Etheet patch cable termination, which will be also illustrated in details. Hope these information will guide you to make your own Etheet patch cable and then deploy your Etheet network in a very fast, smooth and cost effective manner. Selecting a Proper Etheet Patch Cable Before making the Etheet patch cable, ...ادامه مطلب

It is well known that network patch cable can be commonly wired as straight-through or crossover cable, used for data transmission. Both of these two network patch cables are made up of four pairs of high performance twisted wires with different colors, terminated by the RJ45 keystone jacks at each side of the cables. As for their applications, they are designed for serving different aims, with different wire arrangements inside their cables, which will be introduced in the following text for guiding you to pick the most proper one for deploying you network. Different Wiring Standards for Wire Arrangements Before discussing the differences between the straight-through and crossover cable, it is necessary to introduce two wiring standards, T568A and T568B, for better understanding the different wire arrangements in each kind of the cable. These two kinds of wiring standards are recognized by ANSI, TIA and EIA for wiring the network patch cables. Generally, the T568B wiring standard is m, ...ادامه مطلب

Although the copper-based patch cable performs not so well as the fiber patch cable in Etheet network, it is still popularly used due to its advantages of low cost, high flexibility, easy installation and operation. So far, there are various kinds of copper-based patch cables that were published and came into the market in succession, such as, cat5/cat5e, cat6/cat6a and cat7 Etheet cable, etc. Among these copper-based patch cables, Cat5e and Cat6 Etheet cable are two of the most commonly applied types that have similar features and functions, which may be a little hard to distinguish. Do you also feel confused? Letrsquo;s study the knowledge of these two patch cables and acquire which one is more suitable and cost effective to be used. Introduction to Cat5e and Cat6 Etheet Cable Cat5e Etheet cable is an improved version of Cat5 Etheet cable, published in early 2001. In comparison with Cat5 Etheet cable, it has a very similar appearance, but composed of four pairs of coppe, ...ادامه مطلب

Patch Panel Overview The patch panel, also known as the patch bay, patch field or jack field, is a functional unit with a number of same or similar jacks, designed to conveniently and flexibly connect, disconnect and monitor circuits in the cabling network. There is no doubt that the patch panel plays an important role in collecting data and routing it to the intended destination, with the function of enabling the ease of cabling network management and avoiding the data transmission error or failure. At present, there are both copper and fiber patch panels available on the market, both of which are very popularly used due to their features and advantages. To better know about the patch panel, here offers a kind of 48 port cat6 patch panel in the following figure. From this figure, you can easily lea the appearance of the front and rear of the 48 port cat6 patch panel. Patch Panel Importance to Cabling Network We used to regard the patch panel as the ldquo;traffic lightrdquo; for ou, ...ادامه مطلب

With the rapid development of the network technology, the network deployment becomes much more complicated than ever before to satisfy the increasing network needs. In order to deploy the the complicated cabling network in a tidy, fast and correct manner, the patch panel is designed to better manage the patch cables in the network, which can be divided into two types, the copper patch panel and the fiber patch panel. To avoid the connection errors and making the cabling network flexible, reliable and neat, this paper will mainly introduce some commonly used types of the copper patch panel that may be helpful for you to pick the most suitable one for your cabling network. Commonly Used Types of Copper Patch Panels While the copper patch panel has made a great contribution to the complicated cabling network as a cost effective solution, the type of the copper patch panel has become more and more diversified, such as, shielded and unshielded patch panel, flat and angled patch panel, commo, ...ادامه مطلب

It is well known that there are various kinds of connectors used to terminate the fiber optic patch cables, such as LC, SC, FC and MTP/MPO connector. As for terminating the copper based patch cables widely applied in home wired network, there are also several RJ-style connectors published like RJ11, RJ12, RJ21, RJ35 and RJ45 jack, etc. Among these jacks, the RJ11 and RJ45 jack are the most commonly used jacks that have common in appearance, which may be not easy to tell. Since the RJ45 jack is specially designed for terminating the Etheet patch cable like Cat 5e cable and Cat 6 cable, do you wonder that can the Cat 5e cable or Cat 6 cable be also terminated by RJ11 jack? Letrsquo;s study the RJ11 and RJ45 jack information and find the differences of these two jacks, then seek the answer. What are RJ11 and RJ45 Jack? ldquo;RJrdquo; is the acronym of ldquo;registered jackrdquo;, which is a standardized telecommunication network interface designed to connect voice and data equipment to , ...ادامه مطلب

As we move to more and more complicated network, the cable management becomes much more difficult than ever before. If there is something wrong in the cable deployment or management, the system downtime may occur that directly affects the productivity and efficiency of the system. Meanwhile, if the cable is not well managed, the whole system will look very dirty, disorderly and bad. In order to solve these issues, several solutions are put forward to make the cable management faster and easier and maximize the performance of the system, such as, zip tie, patch panel, J-Hook, etc. In this paper, it will mainly study these commonly used cable management tools for deploying a sophisticate, but stable and tidy cabling network. Zip Tie Solution Zip tie can be also called cable tie or wire tie that functions as a fastener for holding cables or wires together. Compared to other cable management tools, zip tie is very cheap and easy to be used. Hence, it can be easily found in a wide range of , ...ادامه مطلب

In recently years, more and more data centers and server rooms feature high density and large capacity, in which there are a large number of copper or fiber patch cables used for connecting the whole network. In order to ensure the performance of the whole network, there is no doubt that these patch cables should be connected with no error. Any improper cable management would directly result in cable damage and network failure that can cause data transmission error, performance issue and system downtime. But the fact is that the work of managing these massive patch cables is a quite difficult task, which is easily in error. Then what can we do to achieve good cable management and ensure network performance? This paper will mainly study the cable lacing bar, which is designed for achieving good cable management. Cable Lacing Bar Introduction It is well known that cable ties (like nylon cable ties and velcro cable ties), patch panels (like copper patch panels and fiber patch panels) and , ...ادامه مطلب

Have you ever been annoyed by the messy patch cables deployed in your cabling network? Did you take the cabling pathway as an ideal solution to manage the massive cables that provides better support to the cables? In fact, when deploying a high density network with large amount of cables, it is very necessary to choose the cabling pathway to manage the cables, which is generally made up of conduits, cable trays, ladder racks, surface raceways, and underfloor ducting systems. However, considering that it would cost a lot if we put every inch of the cable on the top of each support element to deploy the cabling pathway, this paper will introduce the J-Hook solution that can not only save the construction material but also provides well continuous support for the messy cables. What Is the J-Hook? J-Hook is a common kind of fastener, usually made of galvanized steel but sometimes of plastic polymers, that is designed for giving support and management to the massive cables, so that the cabl, ...ادامه مطلب

Nowadays, the demands for data transmission rate and data capacity become much higher than ever before, which makes 40G Etheet network more and more prevalent. Under this inevitable trend, 40G Quad Small Form-factor Pluggable (QSFP+) transceiver is designed for 40G migration as the most economic and effective module. Do you have a good knowledge about 40G QSFP+ transceiver? Are you interested in upgrading your system into 40G Etheet network? If yes, there is an important and basic problem you need to consider and deal with before the migration. Which kind of fiber patch cable is the most suitable and cost-efficient for connecting your 40G QSFP+ transceiver? Importance of Fiber Patch Cable in 40G Network As we all know, switches are need to be connected so as to form the whole 40G transmission network. How to connect these switches? As a basic component in the connection, fiber patch cable plays an indispensable role in connecting 40G QSFP+ transceivers which are plugged in Etheet,choosing the right word unit 1,choosing the right college,choosing the right dog,choosing the right word unit 2,choosing the right career,choosing the right word unit 3,choosing the right hair color,choosing the right medium for your message,choosing the right word unit 1 level e,choosing the right mattress ...ادامه مطلب