Month: July 2013

In today’s networking systems, LANs are becoming larger and more complicated, and people are looking for equipment that is cost-effective, flexible and easy to manage, it comes to the Fiber Optic Media Converters, which can connect different types of media effetively and seamlessly. Fiber media converter is one of the key components in modern networking. Its features of high bandwidth capacity, telephone long distance operation and reliability, making fiber optics the most desired funnel for data communications.

Fiber media converter is a short distance twisted pair electrical signals and optical signals over long distances to swap the Ethernet transmission media conversion unit, ensures the smooth transmission of data packets between two networks at the same time, in many places, also known as fiber converter. Its network transmission distance limit extended to more than 100 kilometers from the copper wire 100 meters (single-mode fiber). Products in generic applications can be covered the Ethernet cable with Ethernet media converter, and is usually located in the broadband metropolitan area network access layer applications; in helping the fiber last mile connections to the metro also played a huge role in the network and the outer layer of the network.

What is inside a media converter?

A media converter is composed of two transceivers or MAU (Media Attachment Units) that can transmit data to and receive data from each other, and a power supply. Each of the transceiver (MAU) has a different industry standard connector to join the different media. One media type goes in and other media type comes out. The connectors comply with IEEE standard specifications and use standard data encodings and link tests.

Fiber Media converter types vary from small standalone devices and PC card converters to high port-density chassis systems that offer many advanced features for network management. Working distance of the fiber optic converters are different. For typical multimode fiber optic converter, its working distance max is about 2km, for single mode media converter, its working distance can be 20km, 40km, 60km, 80km and up to 120km. Here I would like to introduce you the media converter fiber to Ethernet.

Ethernet fiber media converters are often mounted to the wall near or directly over a telephone jack and do not need to be tampered with once installed. They provide a fiber optic connection’s extremely high speeds without having to install a complicated series of fiber optic cables. Ethernet fiber media converters usually have their own power adapter and can transfer several gigabytes of data at a time. In fact, Fiber Ethernet Media Converter can be purchased for commercial purposes that can house and manage up to 19 different connections simultaneously.

Fiber optic media converter can be used in any part of the network, including between routers, servers, switches, hubs and so on. It is even possible for them to be integrated alongside your workstation. Media converters make the configuration of any network to be more flexible.

There are two basic cable designs available that are used for designing fiber optic networks in North America. One is loose tube fiber cable, applied in many outside plants, duct, direct-buried applications. Another is tight buffered fiber optic cable, primarily used inside buildings. Before selecting a cable design, there are still many more factors need to consider after determining whether the cables will be used inside or outside.

Loose Tube Cable

The modular design of loose tube cables typically holds up to 12 fibers per buffer tube with a maximum per cable fiber count of more than 200 fibers. In a loose-tube cable design, color-coded plastic buffer tubes house and protect optical fibers, also helps in the identification and administration of fibers in the system. A gel filling compound impedes water penetration. Excess fiber length (relative to buffer tube length) insulates fibers from stresses of installation and environmental loading. Loose-tube cables can be all-dielectric or optionally armored.

The cable core, typically surrounded by aramid yarn, is the primary tensile strength member. The outer polyethylene jacket is extruded over the core. If armored is required, a corrugated steel tape is formed around a single jacketed cable with an additional jacket extruded over the armor.

Loose-tube cables typically are used for outside-plant installation in aerial, duct and direct-buried applications. These cables are excellent for outside plant applications since they can be made with the loose tubes filled with water-absorbent powder or gel that withstands high moisture conditions. They also give a more stable transmission under continuous mechanical stress.

Tight Buffered Cable

Buffer tubes are stranded around a dielectric or steel central member, which serves as an anti-buckling element. With tight-buffered cable designs, the buffering material is in direct contact with the fiber. It has low crush and impact resistance along with a low attenuation change at lower temperatures. The tight-buffered design is well-suited for “jumper cables” that connect outside plant cables to terminal equipment, and also for linking various devices in a premises network. As with loose-tube cables, optical specifications for tight-buffered cables also should include the maximum performance of all fibers over the operating temperature range and life of the cable.

The breakout design and distribution design are the two typical constructions of the tight-buffered cables. The breakout design has an individual jacket for each tight-buffered fiber, and the distribution design has a single jacket protecting all of the tight-buffered fibers. The modular buffer-tube design permits easy drop-off of groups of fibers at intermediate points, without interfering with other protected buffer tubes being routed to other locations.

The tight-buffered design provides a rugged cable structure to protect individual fibers during handling, routing and connectorization. Yarn strength members keep the tensile load away from the fiber. Multi-fiber, tight-buffered cables often are used for intra-building, risers, general building and plenum applications.

There are single-fiber and multi-fiber tight-buffered cables available.

Single-Fiber tight-buffered Cable

Single-fiber cables have a single fiber strand surrounded by a tight buffer. To terminate loose-tube cables directly into receivers and other active and passive components, single-fiber tight-buffered cables are used as pigtails, patch cords, and jumpers.

Multi-Fiber tight-buffered Cable

Multi-fiber cables have two or more tight-buffer cables that are contained in a common outer jacket. General building, risers, and plenum applications often use multi-fiber, tight-buffered cables. These cables are also used for handling ease and flexibility within buildings and alternative handling and routing.

With these innovative network designs, bulk fiber optic cables have paved the way for easier, more efficient custom cable assembly. Whether for an administrative, medical, or industrial network, fiber optics networking is quickly becoming the number one choice.

Fiber-optic-based video and audio multiplexers are designed specifically for pro A/V and broadcast applications. Video Multiplexer is usually applied in video area, especially for Security defensive system.

A video multiplexer, also called mux, includes digital video transmitter and receiver, is a device that put recordings of signals from multiple security cameras on one cassette. It handles several different video signals simultaneously. Video multiplexers can split a monitor into various display areas and vice versa, combine output signals from several cameras to a single monitor. It can be used as a stand-alone video processor to control various types of video views directly to a monitor and/or in conjunction with a VCR surveillance recorder. They can also provide simultaneous display and playback features. Some video multiplexers allow for remote access. They combine the best features of switchers and quads.

Typical Applications of Video Multiplexers:

1. Putting the camera signal on a video channel that is accessible to your television.
2. Configurable camera recording.
3. Closed circuit television (CCTV) and video surveillance applications because a video multiplexer can split a monitor into various display areas.
4. Automatic camera detection.
5. Various media and broadcasting applications.

How to Choose Video Multiplexer?

Video multiplexers come in a variety of configurations and features that conform to certain quality standards. The features may differ in quality of resolution, channels, refresh times, weight, power consumption, etc.

When choosing the video multiplexer, you should consider the number of camera inputs you need while taking into account future changes (in case of expansion). Features you need to look for include the following:

1. A time and date stamp that lets you know when any recorded activity took place.
2. An alarm output.
3. Motion detection.
4. Capability to be used with your computer software.
5. Use with either color or black-and-white cameras.

Multiplexers are described as simplex or duplex. This description indicates the number of multiplexing functions they can perform at any one time. Simplex multiplexers can perform only one multiplexing function at a time and will show a full-screen image, whereas duplex multiplexers show split options while continuing to record because it has two multiplexing processors in the same unit. Thus, a duplex multiplexer can display multiple cameras at the same time while multiplex-recording those cameras. Triplex multiplexers add a third multiplexing processor that has the ability to view live and recorded video on the same screen at the same time. Quadriplexers, or quads, use four camera connections per monitor. Quads can split the screen and display all the four cameras simultaneously. This means that the images are compressed and the image resolution may be low. In comparison, a multiplexer records each camera individually; thus, no loss from compression will occur. This is because when the output of a multiplexer is connected to a recording device, all cameras are individually recorded in sequence.

FiberStore supplies complete video surveillance systems, including Video Multiplexers, Video Data Multiplexer, Video Audio Multiplexers and video Audio Data Multiplexer. We supply video multiplexer in different channels, such as 1, 2, 4, 8, 16, 24, 32 channels. The Video Data Audio Multiplexer is ideal for a wide range of multiplexing and remultiplexing applications including Broadcast/Studio, CCTV audio and Professional AV applications.

FiberStore News

Summary: The world’s leading international market research company has announced the additional of Wintergreen Research on Optical Amplifiers development from 2013 to 2019.

Research and Markets has announced the addition of Wintergreen Research, Inc’s new report “Optical Amplifiers: Market Shares, Strategies, and Forecasts, Worldwide, 2013 to 2019” to their offering.

Research and Markets
Research and Markets is the world’s leading source for international market research reports and market data. We provide you with the latest data on international and regional markets, key industries, the top companies, new products and the latest trends.

Optical Amplifiers are evolving. There are various types including the EDFA, Raman, and Semiconductor configurations. The EDFA optical amplifier units can be used in telecom and datacom (SONET/SDH/DWDM/Gigabit Ethernet) applications to change an electrical signal into an optical signal and vice versa.

According to Susan Eustis, lead author of the study, “Optical Amplifiers are used to update the communications networks to manage broadband, to update the data center networks to make them manage traffic with higher speeds, to implement the backbone network for mobile communications”

Everything is going mobile. This evolution is driven by mobile smart phones and tablets that provide universal connectivity. With 6 billion cell phones in use and one billion smart phones, soon to be 6 billion smart phones, a lot of people have access to mobile communication. Video, cloud-based services, the internet, and machine-to-machine (M2M) provides mobile connectivity. All these devices are networked and drive significant traffic to the broadband network, stimulating the need for fiber optical transceivers.”

Key Topics Covered:

1. Optical Amplifier Market Description
2. Optical Amplifier Market Shares and Forecasts
3. Optical Amplifier Products Description
4. Optical Amplifier Technology
5. Optical Components Company Description

Companies Mentioned
ACON
Accelink
Advanced Photonix
Agilent Technologies
Analog Devices
Avago Technologies
Broadcom
Emcore
Emcore
Finisar
Fiberstore
Foxconn
Furukawa Electric
GigOptix
Huawei
Ikanos
JDS Uniphase
Luxtera
MRV
Menara Networks
NEC
NeoPhotonix
Oclaro / Opnext
Oplink
Reflex Photonics
Rohm Semiconductor
Santec
Source Photonics
Sumitomo
Transmode
Triquint
Vitesse
Zhone Technologies

For more information visit:

http://www.researchandmarkets.com/research/5z7q9w/optical

FiberStore News

Summary: With people more and more focusing on the economic efficiencies of 40G VS 100G, If more affordable 100G coherent design appears, then is there market space for 40G?

“If the 40Gbps module on the first class of market, then the 100 Gbps is on the fourth”, ECI Telecom fiber network company vice president Oren Marmur says. 10G market has experienced several evolutions until today, from the large 300-pin package (LFF) to a 300-pin small outline package (SFF) and then the smaller fixed wavelength pluggable XFP, finally evolved into today’s tunable XFP. “40 Gbps is in the same states of 10 Gbps markets in a couple of years ago, when each vendor has their different packages and modulation schemes.”

Opnext company supplies four types of 40 Gbps swapping device: Dictionary, DPSK, continuous mode DPSK variants and DQPSK. According to Ovum survey, duobinary is lowest cost, followed by DPSK. But swapping vendors is facing the next step to go, whether to make a bet on the 40 Gbps DQPSK or DP-QPSK designs?

However, material cost is only one of the bottlenecks, optical performance is more important constraints. DQPSK has excellent dispersion properties, but if used simultaneously with 10 Gbps, you must manage well 40 Gbps coherent channel locations.

Another concern is the 100Gbps module. DP-QPSK is recognized the best 100 Gbps modulation scheme, while taking into account the 40 Gbps and 100 Gbps coherent design commonality between, the relative cost advantage of each will become the winning factor. Finisa Rafik Ward, vice president of marketing, said the concern is the 40G VS 100G economic benefits. “If more affordable 100G coherent design appears, then is there market space for 40G?”

At the same time, designers are constantly shrinking the size of the existing 40 Gbps module dedicated to significantly increase its system capacity. 7 x 5 – inch 300-pin LFF Transponder need to configured with the cable card with self, so a 40 Gbps link line card requires the use of two systems: one for the client interface interface for the short-range arrival rate, the other is for the line side swapping device.

Mintera is currently developing the smaller 300-pin MSA DPSK transponder to make a line card capable of carrying two 40 Gbps interfaces. The current design is that each line card composed of a three bay racks. With the new line card design, since each carrier can carry 16 40 Gbps links and each system has a capacity of 1920 Gbps, the total system capacity can be doubled. Equipment suppliers can be also used smaller pin-compatible 300-pin MSA on an existing line card to reduce the costs.

Openext senior technical marketing manager Matt Traverso also stressed the importance of compact swapping device: “Although this is not yet mature, this will be a war on the modulation mode.”

Another factor that drives the development of the transponder is the electrical interface it used. 300-pin MSA-based 16 2.5 Gbps channels SFI 5.1 interfaces, while 40 GbE/100 GbE were using 10 Gbps interfaces, as many framers and ASIC vendors done. Because 300-pin MSA is not compatible with that, long-distance transmission adopting Channel 10 Gbps electrical interfaces will need the use of the new plug-in MSA.