Category Archives: Fiber To The Home

A compelling treatment of FTTH

Why Data Center Location Matters?

When it comes to data center design, location is a crucial aspect that no business can overlook. Where your data center is located matters a lot more than you might realize. In this article, we will walk you through the importance of data center location and factors you should keep in mind when choosing one.

The Importance of Data Center Location

Though data centers can be located anywhere with power and connectivity, the site selection can have a great impact on a wide range of aspects such as business uptime and cost control. Overall, a good data center location can better secure your data center and extend the life of data centers. Specifically, it means lower TCO, faster internet speed, higher productivity, and so on. Here we will discuss two typical aspects that are the major concerns of businesses.

Greater physical security

Data centers have extremely high security requirements, and once problems occur, normal operation will be affected. Of course, security and reliability can be improved by various means, such as building redundant systems, etc. However, reasonable planning of the physical location of a data center can also effectively avoid harm caused by natural disasters such as earthquakes, floods, fires and so on. If a data center is located in a risk zone that is prone to natural disasters, that would lead to longer downtime and more potential damages to infrastructure.

Higher speed and better performance

Where your data center is located can also affect your website’s speed and business performance. When a user visits a page on your website, their computer has to communicate with servers in your data center to access data or information they need. That data is then transferred from servers to their computer. If your data center is located far away from your users who initiate certain requests, information and data will have to travel longer distances. That will be a lengthy process for your users who could probably get frustrated with slow speeds and latency. The result is lost users leaving your site with no plans to come back. In a sense, a good location can make high speed and impressive business performance possible.

Choosing a Data Center Location — Key Factors

Choosing where to locate your data center requires balancing many different priorities. Here are some major considerations to help you get started.

key factors of choosing a data center location

Business Needs

First and foremost, the decision has to be made based on your business needs and market demands. Where are your users? Is the market promising in the location you are considering? You should always build your data center as close as possible to users you serve. It can shorten the time for users to obtain files and data and make for happy customers. For smaller companies that only operate in a specific region or country, it’s best to choose a nearby data center location. For companies that have much more complicated businesses, they may want to consider more locations or resort to third-party providers for more informed decisions.

Natural Disasters

Damages and losses caused by natural disasters are not something any data center can afford. These include big weather and geographical events such as hurricanes, tornadoes, floods, lightning and thunder, volcanoes, earthquakes, tsunamis, blizzards, hail, fires, and landslides. If your data center is in a risk zone, it is almost a matter of time before it falls victim to one. Conversely, a good location less susceptible to various disasters means a higher possibility of less downtime and better operation.

It is also necessary to analyze the climatic conditions of a data center location in order to select the most suitable cooling measures, thus reducing the TCO of running a data center. At the same time, you might want to set up a disaster recovery site that is far enough from the main site, so that it is almost impossible for any natural disaster to affect them at the same time.

Power Supply

The nature of data centers and requirements for quality and capacity determine that the power supply in a data center must be sufficient and stable. As power is the biggest cost of operating a data center, it is very important to choose a place where electricity is relatively cheap.

The factors we need to consider include:

Availability — You have to know the local power supply situation. At the same time, you need to check whether there are multiple mature power grids in alternative locations.

Cost — As we’ve mentioned, power costs a lot. So it is necessary to compare various power costs. That is to say, the amount of power should be viable and the cost of it should be low enough.

Alternative energy sources — You might also want to consider whether there are renewable energy sources such as solar energy, wind energy and air in alternative locations, which will help enterprises to build a greener corporate image.

It is necessary to make clear the local power supply reliability, electricity price, and policies concerning the trend of the power supply and market demand in the next few years.

Other Factors

There are a number of additional factors to consider. These include local data protection laws, tax structures, land policy, availability of suitable networking solutions, local infrastructure, the accessibility of a skilled labor pool, and other aspects. All these things combined can have a great impact on the TCO of your data center and your business performance. This means you will have to do enough research before making an informed decision.

There is no one right answer for the best place to build a data center. A lot of factors come into play, and you may have to weigh different priorities. But one thing is for sure: A good data center location is crucial to data center success.

Article Source: Why Data Center Location Matters?

Related Articles:

Data Center White Space and Gray Space

Five Ways to Ensure Data Center Physical Security

Carrier Neutral vs. Carrier Specific: Which to Choose?

As the need for data storage drives the growth of data centers, colocation facilities are increasingly important to enterprises. A colocation data center brings many advantages to an enterprise data center, such as carriers helping enterprises manage their IT infrastructure that reduces the cost for management. There are two types of hosting carriers: carrier-neutral and carrier-specific. In this article, we will discuss the differentiation of them.

Carrier Neutral and Carrier Specific Data Center: What Are They?

Accompanied by the accelerated growth of the Internet, the exponential growth of data has led to a surge in the number of data centers to meet the needs of companies of all sizes and market segments. Two types of carriers that offer managed services have emerged on the market.

Carrier-neutral data centers allow access and interconnection of multiple different carriers while the carriers can find solutions that meet the specific needs of an enterprise’s business. Carrier-specific data centers, however, are monolithic, supporting only one carrier that controls all access to corporate data. At present, most enterprises choose carrier-neutral data centers to support their business development and avoid some unplanned accidents.

There is an example, in 2021, about 1/3 of the cloud infrastructure in AWS was overwhelmed and down for 9 hours. This not only affected millions of websites, but also countless other devices running on AWS. A week later, AWS was down again for about an hour, bringing down the Playstation network, Zoom, and Salesforce, among others. The third downtime of AWS also impacted Internet giants such as Slack, Asana, Hulu, and Imgur to a certain extent. 3 outages of cloud infrastructure in one month took a beyond measure cost to AWS, which also proved the fragility of cloud dependence.

In the above example, we can know that the management of the data center by the enterprise will affect the business development due to some unplanned accidents, which is a huge loss for the enterprise. To lower the risks caused by using a single carrier, enterprises need to choose a carrier-neutral data center and adjust the system architecture to protect their data center.

Why Should Enterprises Choose Carrier Neutral Data Center?

Carrier-neutral data centers are data centers operated by third-party colocation providers, but these third parties are rarely involved in providing Internet access services. Hence, the existence of carrier-neutral data centers enhances the diversity of market competition and provides enterprises with more beneficial options.

Another colocation advantage of a carrier-neutral data center is the ability to change internet providers as needed, saving the labor cost of physically moving servers elsewhere. We have summarized several main advantages of a carrier-neutral data center as follows.

Why Should Enterprises Choose Carrier Neutral Data Center

Redundancy

A carrier-neutral colocation data center is independent of the network operators and not owned by a single ISP. Out of this advantage, it offers enterprises multiple connectivity options, creating a fully redundant infrastructure. If one of the carriers loses power, the carrier-neutral data center can instantly switch servers to another online carrier. This ensures that the entire infrastructure is running and always online. On the network connection, a cross-connect is used to connect the ISP or telecom company directly to the customer’s sub-server to obtain bandwidth from the source. This can effectively avoid network switching to increase additional delay and ensure network performance.

Options and Flexibility

Flexibility is a key factor and advantage for carrier-neutral data center providers. For one thing, the carrier neutral model can increase or decrease the network transmission capacity through the operation of network transmission. And as the business continues to grow, enterprises need colocation data center providers that can provide scalability and flexibility. For another thing, carrier-neutral facilities can provide additional benefits to their customers, such as offering enterprise DR options, interconnect, and MSP services. Whether your business is large or small, a carrier-neutral data center provider may be the best choice for you.

Cost-effectiveness

First, colocation data center solutions can provide a high level of control and scalability, expanding opportunity to storage, which can support business growth and save some expenses. Additionally, it also lowers physical transport costs for enterprises. Second, with all operators in the market competing for the best price and maximum connectivity, a net neutral data center has a cost advantage over a single network facility. What’s more, since freedom of use to any carrier in a carrier-neutral data center, enterprises can choose the best cost-benefit ratio for their needs.

Reliability

Carrier-neutral data centers also boast reliability. One of the most important aspects of a data center is the ability to have 100% uptime. Carrier-neutral data center providers can provide users with ISP redundancy that a carrier-specific data center cannot. Having multiple ISPs at the same time gives better security for all clients. Even if one carrier fails, another carrier may keep the system running. At the same time, the data center service provider provides 24/7 security including all the details and uses advanced technology to ensure the security of login access at all access points to ensure that customer data is safe. Also, the multi-layered protection of the physical security cabinet ensures the safety of data transmission.

Summary

While many enterprises need to determine the best option for their company’s specific business needs, by comparing both carrier-neutral and carrier-specific, choosing a network carrier neutral data center service provider is a better option for today’s cloud-based business customers. Several advantages, such as maximizing total cost, lower network latency, and better network coverage, are of working with a carrier-neutral managed service provider. With no downtime and constant concerns about equipment performance, IT decision-makers for enterprise clients have more time to focus on the more valuable areas that drive continued business growth and success.

Article Source: Carrier Neutral vs. Carrier Specific: Which to Choose?

Related Articles:

What Is Data Center Storage?

On-Premises vs. Cloud Data Center, Which Is Right for Your Business?

Fibre Patch Panel Termination

It seems that we have already known that the fibre patch panel is the bridge of fibre patch cables. Fibre patch panel, also known as fibre distribution panel, serves as a convenient place to terminate all the fibre optic cable running from different rooms into the wiring closet and provides connection access to the cable’s individual fibres. Fibre patch panels are termination units, which are designed with a secure, organised chamber for housing connectors and splice units.

How Does Patch Panel Termination Units Works?

We know that there are two major termination solutions for fibre cable: field terminated and pre-terminated. The pre-termination, with most devices terminated by the manufacturers in advance, requires less efforts when installing than field termination does. Therefore, this post is going to offer a glimpse into the field termination which describes the termination of the fibre optic cable in the field or the termination after installation.

Fibre Patch Panel Termination Procedure

In the termination process, the fibre optic cable need to be pulled between two points, then connectors will need to be attached and then connected to a patch panel. In addition, before they can be attached to a panel, connectors need to be attached to each individual strand, and a variety of tools will be needed. With field termination, we can determine the cable length accordingly, and fibre optic bulk cable is very easily to pull from either end of the installation circuit.
To carry out the termination, such tools are needed as fibre optic enclosure, fibre cable, patch panel, cable ties, connector panels, permanent marker, fibre optic stripper, cleaver, metric ruler and rubbing alcohol.

To terminate the cable, first slide the boot onto the fibre. Strip the fibre to at least about an inch and a half . Place a mark at 15.5 mm for ST and SC connectors or at 11.5 mm for LC connectors. Clean the stripped fibre with an alcohol wipe and remove any debris. Set the stripped fibre into the cleave and cleave it. Insert the cleaved fibre into the rear of the connector until the mark align with the back of the connector body. Slight the boot up and over the rear of the connector body. After the termination, transmission testing of assemblies need to be performed.

fiber optics termination
In the final fibre patch panel termination, first, open the front and rear door of the patch panel, and remove the covers. Remover the inter stain relief bracket. Second, use cable ties to put the cables on the bracket. The fibres should be put inside the clips on the tray to segregate the fibres from A and B slots. Put the patch panel into the panels clips. Take the excess fibre slack into the slack management clips. Make a bend in the fibre to maintain slight pressure on the connection.

fix the cover

Conclusion

The processes in the device connection and cable management are linking with each other that missing any or failure in any one will result in the imperfect system, or even the damage. If we own a fibre patch panel, we should make full use of its termination function. The products provided by FS,COM enable you to perfect your cabling system.

Wall Mount VS Rack Mount Patch Panel

Patch panels are termination units, which are designed to provide a secure, organised chamber for housing connectors and splice units. Its main function is to terminate the fibre optic cable and provide connection access to the cable’s individual fibres. Patch panels can be categorised into different types based on a few different criteria. Last time, we have shed light on the copper and fibre patch panel and now let’s learn a different pair of it, namely wall mount patch panel and rack mount patch panel.

Wall Mount Patch Panel

As the name suggests, wall mount patch panel is a patch panel fixed on the wall.The wall mount patch panels are designed to provide the essential interface between multiple fibre cables and optical equipment installed on the customer’s premises. The units offer networking and fibre distribution from the vault or wiring closet to the user’s terminal equipment.

This kind of patch panel consists of two separate compartments. As shown below, the left side is used for accommodating outside plant cables entering the building, pigtails and pigtail splices. Whereas, the right side is designed for internal cable assembly networking. And both sides have a door secured with a quarter turn latch.

wall mount patch panel

Rack Mount Patch Panel

The rack mount patch panel usually holds the fibres horizontally and looks like a drawer. Rack mount panel is designed in 1U, 2U, 4U sizes and can hold up to 288 or even more fibres. They can be mounted onto 19″ and 23″ standard relay racks. The rack mount enclosures include two kinds. One is the slide-out variety and the other incorporates a removable lid. As for the latter one, the tray can be pulled out and lowered to 10 degree working angle or even further 45 degree working angle to provide ease of access for maintenance or installation work.

rack mount patch panel

Wall Mount VS Rack Mount Patch Panel

  • Installation

When installing wall mount patch panels, users need to leave at least 51mm additional space on each side to allow opening and removing the doors. Although it can be easily mounted to the wall by using the internal mounting holes, four screws are required when it is attached to a plywood wall, expansion inserts with wood screw for concrete walls and “molly bolts” for sheet rock. However, the installation of a rack patch panel just needs four screws without drilling the wall.

  • Space Occupation

Thinking from another perspective, the advantage of wall mount patch panels is that they allow you to optimise your work space by keeping equipment off floors and desks，which is superior to the rack mount patch panel.

  • Application

Both panels can be applied to Indore Premise Networks, Central offices (FTTx), Telecommunication Networks, Security Surveillance Applications, Process Automation & Control, Systems and Power Systems & Controls, while the rack mount patch panel has an advantage over the wall mount patch panel in that it can be applied to Data Centres.

Conclusion

To sum up, patch panels are available in rack mounted and wall mounted and are usually placed near terminating equipment (within patch cable reach). Both types can provide an easy cable management in that the panel ports can be labeled according to location, desktop number,etc. to help identify which cable from which location is getting terminated on which port on the patch panel, and changes can be made at the patch panel. The world-wide renown FS.COM can provide you the best quality rack mount and wall mount patch panel. Buyers are welcome to contact us.

A Wise Decision to Choose DWDM Mux/DeMux

The advent of big data requires for highly efficient and capable data transmission speed. To solve the paradox of increasing bandwidth but spending less, WDM (wavelength division multiplexing) multiplexer/demultiplexer is the perfect choice. This technology can transport extremely large capacity of data traffic in telecom networks. It’s a good way to deal with the bandwidth explosion from the access network.

WDM

WDM stands for wavelength division multiplexing. At the transmitting side, various light waves are multiplexed into one single signal that will be transmitted through an optical fibre. At the receiver end, the light signal is split into different light waves. There are 2 standards of WDM: coarse wavelength division nultiplexing (CWDM) and dense wavelength division multiplexing (DWDM). The main difference is the wavelength steps between the channels. For CWDM this is 20nm (course) and for DWDM this is typically 0.8nm (dense). The following is going to introduce DWDM Mux/Demux.

DWDM Technology

DWDM technology works by combing and transmitting multiple signals simultaneously at different wavelengths over the same fibre. This technology responds to the growing need for efficient and capable data transmission by working with different formats, such as SONET/SDH, while increasing bandwidth. It uses different colors (wavelength) which are combined in a device. The device is called a Mux/Demux, abbreviated from multiplexer/demultiplexer, where the optical signals are multiplexed and de-multiplexed. Usually demultiplexer is often used with multiplexer on the receiving end.

Mux/Demux

Mux selects one of several input signals to send to the output. So multiplexer is also known as a data selector. Mux acts as a multiple-input and single-output switch. It sends optical signals at high speed over a single fibre optic cable. Mux makes it possible for several signals to share one device or resource instead of having one device per input signals. Mux is mainly used to increase the amount of data that can be sent over the network within a certain amount of time and bandwidth.

Demux is exactly in the opposite manner. Demux is a device that has one input and more than one outputs. It’s often used to send one single input signal to one of many devices. The main function of an optical demultiplexer is to receive from a fibre consisting of multiple optical frequencies and separate it into its frequency components, which are coupled in as many individual fibres as there are frequencies.

mux-and-demux

DWDM Mux/Demux modules deliver the benefits of DWDM technology in a fully passive solution. They are designed for long-haul transmission where wavelengths are packed compact together. FS.COM can provide modules for cramming up to 48 wavelengths in 100GHz grid(0.8nm) and 96 wavelengths in 50GHz grid(0.4nm) into a fiber transfer. ITU G.694.1 standard and Telcordia GR1221 are compliant. When applied with Erbium Doped-Fiber Amplifiers (EDFAs), higher speed communications with longer reach (over thousands of kilometres) can be achieved.

Currently the common configuration of DWDM Mux/Demux is from 8 to 96 channels. Maybe in future channels can reach 200 channels or more. DWDM system typically transports channels (wavelengths) in what is known as the conventional band or C band spectrum, with all channels in the 1550nm region. The denser channel spacing requires tighter control of the wavelengths and therefore cooled DWDM optical transceiver modules required, as contrary to CWDM which has broader channel spacing un-cooled optics, such as CWDM SFP, CWDM XFP.

DWDM Mux/Demux offered by FS.COM are available in the form of plastic ABS module cassette, 19” rack mountable box or standard LGX box. Our DWDM Mux/Demux are modular, scalable and are perfectly suited to transport PDH, SDH / SONET, ETHERNET services over DWDM in optical metro edge and access networks. FS.COM highly recommends you our 40-CH DWDM Mux/DeMux. It can be used in fibre transition application as well as data centre interconnection for bandwidth expansion. With the extra 1310nm port, it can easily connect to the existing metro network, achieving high-speed service without replacing any infrastructure.

DWDM MUX DEMUX

Conclusion

With DWDM Mux/DeMux, single fibres have been able to transmit data at speeds up to 400Gb/s. To expand the bandwidth of your optical communication networks with lower loss and greater distance capabilities, DWDM Mux/DeMux module is absolutely a wise choice. For other DWDM equipment, please contact via sales@fs.com.

Available Interconnect Solutions for FTTH Drop Cables

FTTH, short for fibre to the home, is the installation and use of optical fibre from a central point directly to individual buildings such as residences, apartment buildings and businesses to provide unprecedented high-speed Internet access. In determining the best solution for a particular FTTH deployment, providers must first decide between splices and connectors. Then, they must choose the best splice or connector for the particular circumstances of deployment. This article explores the available interconnect solutions for FTTH drop cables and discusses their advantages and disadvantages in various deployment circumstances.

FTTH

Splice vs Connector

Before deploying a FTTH network, providers must first decide whether to use a splice, which is a permanent joint, or a connector, which can be easily mated and un-mated by hand. Both splices and connectors are widely used at the distribution point. At the home’s optical network terminal (ONT) or network interface device (NID), either a field-terminated connector or a spliced-on factory-terminated connector can be used.

Splices enable a transition from 250micron drop cable fibre to jacketed cable with high reliability and eliminates the possibility of the interconnection point becoming damaged or dirty. Splices are most appropriate for drop cables dedicated to a particular living unit where no future fibre rearrangement is necessary, such as in a greenfield or new construction application where the service provider can easily install all of the drop cables during the living unit construction.

Connectors are easier to operate and provide greater network flexibility than splices, because they can be mated and unmated repeatedly, allowing them to be reused over and over again. Connectors also provide an access point for network testing. However, connectors cost more than splices although network rearrangement is much cheaper. Therefore, providers must weigh the material cost of connectors along with the potential for contamination and damage against their greater flexibility and lower network management expense.

Splice vs Connector

Choosing the Right Splice

Splicing technology for FTTH deployment falls into two major categories: fusion and mechanical.

Fusion splicing is considered to be a solution for FTTH drop splicing, especially considering it provides a high quality splice with low insertion loss and reflection. However, fusion splicing is expensive and requires trained technicians to operate. It is time-consuming and the slow installation speed hinders its status as the preferred solution. Fusion splicing is best suited for companies that have already invested in fusion splicing equipment and do not need to purchase additional splicing machines.

Mechanical splices can perform well in many environments and have been successfully deployed around the world in FTTH installations. A typical mechanical fibre optic splice includes a small plastic housing with an aluminum alloy element to precisely align and clamp fibres. An index matching gel inside the splices maintains a low-loss optical interface, which results in an average insertion loss of less than 0.1 dB.

Splicer

Choosing the Right Connector

According to the drop cables used, connectors can be divided into two types: factory-terminated and field-terminated.

Factory-terminated
Factory-terminated drop cables can provide high-performing, reliable connections with low optical loss. Factory termination also keeps labor costs low by reducing installation time. An excellent application is a patch cord that connects a desktop ONT to a wall outlet box inside the living unit. A key failure point in the network is when the end user accidentally breaks the fibre in the cable that connects the desktop ONT. If this occurs, the patch cord can be easily replaced. However, factory-terminated cables can be expensive compared to field-terminated alternatives.

Field-terminated
Many providers prefer field-terminated connectors where the installation can be customised by using a reel of cable and connectors, such as fuse-on connectors and mechanical connectors. For example, fuse-on connectors use the same technology as fusion splicing to provide the highest level of optical performance in a field-terminated connector. By incorporating the fusion splice inside the connector, the need for a separate splice tray has been eliminated. However, fuse-on connectors share many of the same drawbacks as fusion splicing. They require expensive equipment, highly trained technicians, and packing and unpacking time, and a power source, ratcheting up installation costs. However, mechanical connectors can provide alternatives to fuse-on connectors for field installation of drop cables.

Summary

The drop cable interconnect solution comprises a key component of an FTTH network. Reliable broadband service depends upon robust connections at the distribution point and the NID/ONT. Choosing the right connectivity product can result in cost savings and efficient deployment while providing reliable service to customers. Globally, most FTTH drop cable installations have been and continue to be field-terminated on both ends of the cable with mechanical connectivity solutions.

Basic Knowledge about Ethernet

Nowadays, billions of file cabinets and mountains of papers stored in computers need to be transmitted at high speed with great efficiency. Computer networking technologies are key to meet this demand, allowing computers on the internet to send and receive information easily. This article will introduce the network technology: Ethernet which is widely used nowadays.

Ethernet is a family of computer networking technologies for local area networks (LANs) and metropolitan area networks (MANs), connecting more than 85 percent of the world’s LAN connected PCs and workstations. It is a link layer protocol in the TCP/IP stack, describing how networked devices transmit data on the same network segment and how to put data out on the network connection. Ethernet was commercially released in 1980 and first standardized in 1983 as IEEE 802.3. Its standards have been updated to embrace new media, higher transmission speeds and changes in frame content such as the new standard 802.3af defining Power Over Ethernet [POE] crucial to most Wi-Fi and IP telephony deployments.

Ethernet

Ethernet was initially designed to run over coaxial cables but has been updated to used for twisted pair cables and fibre optical fibres over years. The most commonly installed Ethernet systems are called 100 BASE-T (the “BASE-T” part means the systems use twisted-pair cabling) which provides transmission speeds up to 100Mbps. It is typically used for LAN backbone systems, supporting workstations with 10BASE-T cards. Another widely used one is Gigabit Ethernet which is primarily carried on optical fibre with very short distances possible on copper media. It provides an even higher level of backbone support at 1000 Mbps or 1 Gbps. With the increasing of data transfer rates, the standards: 10 Gigabit Ethernet and 100 Gigabit Ethernet are available. Their data rates reached up to 10 gigabits per second and even 100 gigabits per second respectively, making them be good solutions to deliver high bandwidth in LANs.

QQ截图20150525174629

100GBASE-LR4 CFP2 Optical Transceiver Module

It is concluded that Ethernet has evolved to provide excellent performance and network intelligence. As Ethernet data transfer rates are excepted to be increased to 400 Gbit/s by early 2017, Ethernet will be the most potential network technology in the future for its high-speed data transmission.

Fiberstore offers a wide range of products for 10GbE or 100 GbE applications such as the new product: 100GBASE-LR4 CFP2 Optical Transceiver module. The optical transceiver offers smaller size and lower power consumption for data centre networking, enterprise core aggregation, and service provider transport applications. For more information, please visit www.fs.com.

CWDM Cost Efficient Transport in Short-haul Networks

CWDM-technology

CWDM Technology

In the field of telecommunications, data centre connectivity, video transport, fibre optic cabling is highly desirable for today’s communication needs due to the enormous bandwidth availability. As fibre cabling is sometimes expensive for people especially individuals to use, wavelength division multiplexing (WDM) is highly advisable for it can expand the capacity of fibres. This article will depict one kind of WDM: coarse wavelength division multiplexing (CWDM or Coarse WDM) which works efficiently with lower cost in short-haul networks in comparison with DWDM (Dense WDM).

CWDM is a method of combining multiple signals on laser beams at various wavelengths for transmission along fibre optic cables. Compared to DWDM which is a more tightly packed WDM system, CWDM has larger channel spacing, having fewer wavelengths be transported on the same fibre. For instance, CWDM typically has channels at wavelengths spaced 20 nanometres (nm) apart, compared with 0.4 nm spacing for DWDM. DWDM can typically transmit from 32 to 128 channels by using erbium-doped fibre amplifiers to boost the signal over long distances, which makes it ideal for long-haul networks. In contrast, CWDM can only transmit a maximum of 18 channels with large spacing between channels, making optical amplifiers not able to be used in CWDM system. So CWDM is typically deployed at short-haul networks.

Cost-Comparison-of-WDM-Technologies

Cost Comparison of WDM Technologies

Due to its broader channel spacing, CWDM has a cost advantage over DWDM. CWDM systems spread less precise lasers over a larger range of wavelengths with consuming less power with low losses. For example, both DWDM and CWDM utilise Distributed Feedback Lasers (DFB). However, DWDM requires the larger cooled DFB lasers because laser wavelengths drift about 0.08 nm/°C with temperature. CWDM uses DFB lasers that are not cooled because laser wavelengths drift about 6nm over the range of 0-70°C and the lasers’ tolerance (extent of wavelength imprecision or variability) in a CWDM is up to ±3 nm. The use of uncooled lasers causes lower power consume, which has positive financial implications for systems operators. For instance, the cost of battery is minimized with the decreasing of power consume, which reducing operating costs.

It is concluded that CWDM is the technology of choice for cost efficiently transporting data traffic in short-haul networks. And as the demand for bandwidth is pushed to the edge of the network, the need for low-cost transport systems is imperative.

QQ截图20150518181345

CWDM Transceivers

FS offers a wide range of CWDM products such as CWDM MUX DEMUX with low cost, CWDM OADM with various configurations, CWDM Transceivers (SFP, SFP+, XFP, GBIC, X2, XENPAK) supporting 155Mbps to 10Gbps data transmissions, etc. Compatible CDWM transceivers are strongly recommended for you. There are CWDM transceivers of famous brands such as Cisco, HP, Juniper, etc. All these CWDM transceivers are of high quality and capacity to be applied to transport data traffic with low cost. For more information, you can visit FS online shop.

Fluke Networks AirCheck Wi-Fi Tester

As one of the global-leading providers, Fluke offers network testers intensively trusted by leading industry professionals when they need to solve the most difficult issues and emerging challenges in data centres, mobility, and unified communications and WLAN security. This article will depict one kind of its network testers known as Fluke Networks AirCheck Wi-Fi Tester.

Introduction of Fluke Networks AirCheck Wi-Fi Tester

AirCheck Wi-Fi Tester is a simple-to-use, handheld wireless tester used for verifying and troubleshooting 802.11 a/b/g/n network availability, connectivity, and security quickly. Its intuitive interface allows you to promptly see wireless network usage and easily determine if it’s Wi-Fi traffic or non- Wi-Fi interference. It is an essential tool of checking wireless environment, enabling you to identify and locate APs whether authorized or rogue. And it can document your troubleshooting session and create professional-quality reports fully, enabling fast trouble ticket resolution or problem escalation.

Fluke network tester

Features of Fluke Networks AirCheck Wi-Fi Tester

Some features of it are listed in details, which assures that you will have a further and clearer understanding of it.

  • Supports 802.11a/b/g/n/ac with instant-on operation powering up in less than three seconds and automatically starts discovering networks, access points (APs), and channel activity
  • Get answers fast through one-button Auto Test which provides a pass/fail indication of the wireless environment and identifies common problems
  • Identifies security settings for each Network and Access Point: Open, WEP, WPA, WPA2, and/or 802.1x
  • Pinpoints Wi-Fi traffic and interference to show how much of each channe’s bandwidth is consumed by 802.11 traffic and interference
  • Connects networks or specific APs using WEP, WPA, WPA2, and/or 802.1x to verify connectivity and network access inside and outside the firewall
  • Robust and in-depth WLAN connection tests – from probing to DHCP request to ping
Fiberstore Fluke Networks AirCheck Wi-Fi Tester Solution

Fiberstore offers five modules of network AirCheck Wi-Fi testers at reasonable price with quality guarantee. Details are shown on the following sheet.

Module # Accessories Description
AirCheck–LE AirCheck Wi-Fi Tester for Law Enforcement includes: AirCheck tester, AirCheck holster, External directional antenna, Auto charger and AirCheck Getting Started Guide for Law Enforcement
ACK-LRAT2000 Network Tech Troubleshooting Kit w/ACK,LRAT-2000 includes: AirCheck tester, LinkRunner AT 2000 tester, AirCheck external directional antenna, spare Li-ion battery for either AirCheck or LinkRunner, IntelliTone Pro 200 probe, WireView 2-6 cable ids, LinkRunner AT holster, AirCheck holster and deluxe carrying case
ACK-LRAT-CIQ Ultimate Network Tech Troubleshooting Kit w/ACK,LRAT-2000,CIQ includes: AirCheck™ tester, LinkRunner AT 2000 tester, AirCheck external directional antenna, spare Li-Ion battery for either AirCheck or LinkRunner, IntelliTone Pro 200 probe, WireView 2-6 cable ids, LinkRunner AT holster, AirCheck holster and deluxe carrying case and CableIQ™ Qualification tester Fluke Networks
ES2-PRO-SX/I-ACK EtherScope Series 2 LAN WLAN SX Fibre ITO + AirCheck including: EtherScope Series 2 LAN and WLAN with fibre and ITO options; and AirCheck Wi-Fi Tester
ES2-PRO-SXI-LR-ACK EtherScope E S2 LAN WLAN SX Fibre ITO + LRPRO + AirCheck-Kit including: EtherScope E Series 2 LAN and WLAN with fibre and ITO options; LinkRunner Pro with Reflector, Lithium Ion battery, and software case; and AirCheck Wi-Fi Tester with extra Lithium Ion battery, directional antenna and hard case

Optical Transport Platforms – Make optical transport network more cost-effective

Overview
With the development of optical transport network, especially the improvement of WDM (Wavelength Division Multiplexing) technology, more and more components and devices should be put into use in the network to support it. However, upgrading the existing architecture of your network is often a difficult problem. We had to pay too much to buy new devices and also had to pay an addtional cost to rebuild your cabling. We can imagine how much difficulty we will have to do. So, how to solve this problem? In this case, “optical transport platform” may be one of your best choice.

In fact, we do not need to stack a various of equipment to respectively achieve the various commands. In contrast, we use the equipment with high integration to achieve it. For example, if an optical transport platform combines the OTN (Optical Transport Network) and WDM features, it can enable customers to integrate multiple access transport networks into a single network. Moreover, the optical transport platform is easy for upgrading by renewing the system control board. Nowadays, optical transport platforms are widely used in the fields of telecom operation, broadcasting, electric power, and information safety etc. Additionally, it is a reliable, simplified and timely redundancy solution for data center.

Advantages of Using Optical Transport Platform
The emergence of optical tranport platform is the result of high speed data transmission. In general, optical transport platform features of transparent transmission of all services over a single network, saving fiber resource, as well as designing with high reliability.

  • Minor initial investment, low operating costs, always scalable
  • Cost-efficient usage of fiber optic capacities
  • High performance location networking and computer center coupling

It helps solve the following problems that are faced by access transport networks:

  • How to realize unified transmission of the 100M – 10G services by using the equipment with high integration?
  • How can the network realize long distance transmission with fewer nodes?
  • How to reduce maintenance and network operation costs?
  • How to effectively lower the ever-increasing energy consumption of equipment, cut down electricity costs, and promote the image of the enterprise?
  • How to realize the smooth upgrade of a network and safeguard the investments?

Applications of Optical Transport Platform
Optical transport platform is an important part of optical tranport network. The application of different line cards can satisfy different requirements, such as Long-haul transport, Ethernet demarcation and conversion or unidirectional WDM transmission etc. In addition, optical transport platform is used in CATV optical transport through adding the corresponding line cards.

FS.COM Optical Transport Platform Solution
Fiberstore FS-OEO800 series optical transport platform products include optical fiber link wavelength converters, optical system control boards, optical switch line protection cards, as well as FS-OEO800 optical transport platform chassis. Meanwhile, the FS-OEO800 series is a powerful custom product line supported by Fiberstore R&D team. We can supply customized service cards and transport platforms to meet your special needs, and design transport platforms’ label and packaging for your company. The FS-OEO800 Optical Transport Platform is purposely built to help network operators accommodate next-generation bandwidth and service requirements while reducing operational and capital expense.

Product Recommendation:

Product Image Model # Description
Fiberstore optical transport platform chassis FS-OEO800-I 4 Slots 19″ 1U FS-OEO800-I Comprehensive Optical Transport Platform Chassis
FS-OEO800-SCF 2 x 100M Ethernet Ports And 2 x SFP Module Slots System Control Board

For more information, please visit our official website or contact us over E-mail: sales@fs.com.