Category Archives: Network Media Conversion

Do You Know about Serial-to-Fiber Media Converters?

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Due to the easiness of setup and low cost, serial devices are used around the world of industrial systems. However, the longer the copper cable, the more data corruption due to the electromagnetic (EMI) and radio frequency (RFI) interference. The fiber connection provides the benefits of noisy immunity and distance. Therefore, serial over fiber is the best solution to overcome these problems, and this text will give a brief introduction of serial-to-fiber media converters.

What Is a Serial-to-Fiber Media Converter?

Serial-to-Fiber Media ConvertersSerial-to-fiber media converters, sometimes also called fiber optic modem (FOM), is a device which provides electrical to optical conversion of electronic communication and data signals for transmission using tactical fiber optic cable assemblies. The converter simultaneously receives incoming optical signals and converts them back to the original electronic signal allowing for full duplex transmission. Together with the tactical fiber optic cables, the converter provides a rugged, secure, and easy deployable optical link. The serial-to-fiber media converter is available in both single and multi-channel configurations and supports both point-to-point and multi-point configurations.

Three Common Serial Interfaces

In order to get one step closer to understanding the serial-to-fiber media converters, common serial interfaces must be explained before. RS-232, RS-422, and RS-485 are the most popular serial interfaces in the industrial application. Each interface provides unique benefits for device communication. RS-232 is the most common serial interface and ships as a standard component on most Windows-compatible desktop computers. RS-422 is the serial connection used on Apple computers. RS-485 is a superset of RS-422 and expands on the capabilities. For your easy reference, a quick comparison chart listed below demonstrates the key differences of these three commonly used serial interfaces for industrial applications.

Specifications RS-232 RS-422 RS-485
Speed Full-duplex Full-duplex Half-duplex
Distance 15M@9600bps 1.2KM@9600bps 1.2KM@9600bps
Pins TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND TxA, TxB, RxA, RxB, GND DataA, DataB, GND
Cable Cost High Medium Low
Topology Point-to-point Point-to-point Multidrop
Software Compatibility High Medium Lowest
Troubleshooting Easy Hard Hard

How Does It Work?

In terms of serial-to-fiber media converters, there are two kinds of connection mode: pair and ring. The working principles of them are different.
Pair Connection Mode
The Pair Connection simply extends the point-to-point transmission distance of the serial connection. Two serial-to-fiber converters can be connected over a fiber cable between a computer and a serial device. These two locations can be up to 12 miles (20 km) apart. Beware the flow control signals for RS-232 cannot be transmitted over fiber. The DTR/DSR and RTS/CTS need to be shortened for RS-232 application.

Pair Connection Mode serial-to-fiber media converter

Ring Connection Mode
If multiple serial devices need to be connected, the Ring Connection mode provides a cost-effective solution. The serial-to-fiber converters can inter-connect to the neighboring converters and form a closed fiber-to-serial ring. Data packets are transmitted by one converter to the other and so on until the signal returns to the converter that sent the original signal. When using the Ring Connection mode, the total length of the fiber connection is up to 62 miles (100 km). The only drawback is the failure of one fiber connection will cause the entire system to fail.

Ring Connection Mode serial-to-fiber converter

Applications

Now in the market, serial to fiber converters are available in several types depending upon the protocol selected, including RS-232 to Fiber Converter, RS-485 to Fiber Converter, RS-422 to Fiber Converter, RS-485/422 to Fiber Converter, and RS-485/422/432 to Fiber Converter. The applications of RS-232 and RS-485 converters are described as follows.
RS-232 Application
This serial to fiber Converter can be connected with RS485/RS422/RS232 port of computer or other devices, solve the problem of traditional RS485/RS422/RS232 communication conflict between distance and rate. RS-232 fiber converters can operate as asynchronous devices, support speeds up to 921,600 baud, and support a wide variety of hardware flow control signals to enable seamless connectivity with most serial devices. In this example, a pair of RS-232 converters provides the serial connection between a PC and Terminal Server allowing access to multiple data devices via fiber.

RS-232 serial-to-fiber converters
RS-485 Application
In this example application a pair of RS-485 converters provide the multi-drop connection between the Host equipment and the connected multi-drop devices via fiber.

RS-485 serial-to-fiber converters

Serial to fiber converter can provide transmission distance up to 2 km over multi-mode fiber and up to 60 km over single-mode fiber, which is really helpful for your network. If you want to know more about this converter, you can visit Fiberstore, which designs, manufactures, and sells all kinds of serial to fiber converters.

Introduction of Media Converter

There is no doubt that Ethernet fiber-optic communications provide many advantages over copper based Ethernet communications. These include immunity to noise and further distance capabilities. Systems that require fiber-optic communication can use switches that contain built-in fiber optic ports. However, if your switch does not have built-in fiber optic ports or does not have enough fiber-optic ports, then a media converter will be needed to convert copper based communications to fiber-optic communications. This article will review the different types of media converters and provide information on the wide variety of applications for media converters.

What is a Media Converter?

Media ConverterMedia converters are flexible and cost-effective devices for implementing and optimizing fiber links in all types of networks. Media converters enable you to connect different types of media, such as twisted pair, fiber, and coax, within a network. The most widely used converters are probably the ones used to convert computers UTP Ethernet ports to fiber. This enables you the ability extend your Ethernet network beyond the 100-meter limit imposed by copper cable. Besides, some other converters also convert multi-mode to single-mode, convert analog signals to digital, multiplex several signals over one fiber pair, or perform other signal processing. In a word, as a device to converter one media to another, media converters are really working.

Types of Media Converter

There are a wide variety of media converters available that support different network protocols, data rates, cabling and connector types. Two main kinds of media converters are copper-to-fiber media converter and fiber-to-fiber media converter.

Copper-to-Fiber Media Converters

The most common type of media converter is a device that functions as a transceiver, which is used to convert the electrical signal used in copper UTP network cabling into light waves used in fiber optic cabling. Fiber optic connectivity is necessary when the distance between two network devices exceeds the transmission distance of copper cabling. Copper-to-fiber conversion using media converters enables two network devices with copper ports to be connected over extended distances via fiber optic cabling.

Copper-to-Fiber Media Converter

  • Ethernet Copper-to-Fiber Media Converters
    Supporting the IEEE 802.3 standard, Ethernet copper-to-fiber media converters are used to provide connectivity for Ethernet, Fast Ethernet, Gigabit and 10 Gigabit Ethernet devices. Hence these converters are also usually divided into Fast Ethernet media converter, Gigabit media converter and 10 Gigabit media converter. The diagram below shows a typical application where Ethernet Media Converters connect to Ethernet Switches by way of Multimode fiber and UTP copper cabling.

Ethernet Media Converter

  • TDM Copper-to-Fiber Media Converters
    The most common TDM copper-to-fiber converters are T1/E1 and T3/E3 converters, which provide a reliable and cost-effective method to extend traditional TDM (Time Division Multiplexing) telecom protocols copper connections using fiber optic cabling. T3/E3 and T1/E1 converters usually operate in pairs extending distances of TDM circuits over fiber, improving noise immunity, quality of service, intrusion protection and network security.
  • Serial-to-Fiber Media Converters
    Serial-to-fiber converters provide fiber extension for serial protocol copper connections. They can automatically detect the signal baud rate of the connected Full-Duplex serial device, and support point-to-point and multi-point configurations.

Fiber-to-Fiber Media Converters

Fiber-to-fiber media converters can provide connectivity between multi-mode (MM) and single-mode (SM) fiber, between different power fiber sources and between dual fiber and single-fiber. In addition, they support conversion from one wavelength to another. Fiber-to-fiber media converters are normally protocol independent and available for Ethernet, and TDM applications.

  • Multi-mode to Single-mode Converters
    Enterprise networks often require conversion from MM to SM fiber, which supports longer distances than MM fiber. Mode conversion is typically required when lower cost legacy equipment uses MM ports but connectivity is required to SM equipment, a building has MM equipment, while the connection to the service provider is SM, and MM equipment is in a campus building but SM fiber is used between buildings.

Multi-mode to Single-mode Fiber Converters

  • Dual Fiber to Single-Fiber Converters
    Enterprise networks may also require conversion between dual and single-fiber, depending on the type of equipment and the fiber installed in the facility. Single-fiber is single-mode and operates with bi-directional wavelengths, often referred to as BIDI. Typically BIDI single-fiber uses 1310nm and 1550nm wavelengths over the same fiber strand in opposite directions. The development of bi-directional wavelengths over the same fiber strand was the precursor to Wavelength Division Multiplexing.

Dual Fiber to Single-Fiber Converters

Applications of Media Converter

Media converters do more than convert copper-to-fiber and convert between different fiber types. Media converters for Ethernet networks can support integrated switch technology, and provide the ability to perform 10/100 and 10/100/1000 rate switching. Additionally, media converters can support advanced bridge features which including VLAN, Quality of Service (QoS) prioritization, Port Access Control and Bandwidth Control and really facilitate the deployment of new data, voice and video to end users. Media converters can provide all these sophisticated switch capabilities in a small, cost-effective device.

How to Get the Correct Cables and Converter For HDTV

The Apple TV doesn’t include a cable for connecting it to your TV, so you need to get a cable unless you already have a suitable one. Similary, you need a cable if you want to connect your Apple TV to speakers or a stereo. If your speakers or stereo are analog instead of digital, you need a digital-to-analog converter, as well. If you want to connect your Apple TV to a wired rather than a wireless network, you need an Ethernet cable. The rest of this section covers what you need to get your Apple TV connected.

At this writing, the Apple TV comes with only an High-Definition Multimedia Interface (HDMI) port for output. This is great for new and newish TVs that have one or more HDMI ports. However, if you have an older TV that donesn’t have an HDMI port, you need to get a converter cable or adapter. Take a few minutes to look at your TV’s documentation to find out which connections it suppports. If you can’t find the documentation, look at the TV itself. Figure 1.2 shows the four main types of connection: HDMI, Component Video, Composite Video, and SCART.

HDMI

Using an HDMI cable for an HDTV

For an HDTV, you normally need only an HDMI cable. If you already have a suitable HDMI cable, you’re all set. If not, you can pick one up from most any store that carries electrical goods.

When you’re choosing an HDMI cable, consider the following:

HDMI logo: Make sure that the cable carries the HDMI logo, as shown in Figure 1.3. This means that the cable was tested and approved by the HDMI Organization ― the body responsible for setting and maintaing the HDMI standard. HDMI-approved cables cost a few dollars more than those that are unapproved, but you can be confident that they are of acceptable quality.

Length: If you can position your Apple TV near your TV, a three-or six-foot cable may be long enough. If the Apple TV needs to be farther away ― get a longer cable. Extremely long cables can cause signal problems (see the sidebar about HDMI cable length), so don’t buy one that is longer than you actually need.

Cost. Expect to pay between $10 and $20 for a quality HDMI cable of standard length (3 to 10 feet). Audiovisual specialists make and sell extremely expensive HDMI cables, and some cost thousands of dollars. Current expert opinion, though, is that basic HDMI cables are fine as long as they are properly make and you don’t mistreat them.

HDMI Standards. Some manufactures advertise their cables as being compliant with different standards, such as HDMI 1.2 and HDMI 1.3. HDMI 1.3 supports Deep Color, a feature that uses extra colors to give a richer display, automatic lip-synching, and high-resolution soundtracks, including Dolby TrueHD. At this writing, the Apple TV doesn’t use these features, so you don’t need HDMI 1.3 cables. If you can choose between an HDMI 1.2 or 1.3 cables. If you can choose between an HDMI 1.2 or 1.3 cable, go for the 1.3 for future compatibility.

Using a component or composite video converter

If you have a standard TV rather than an HDTV, you most likely need to use a Component Video input or Composite Video input instead of an HDMI input. If your TV provides both types of connections, use Component Video, because it gives higher quality. If your TV has only one type of connection, you’re stuck with that type.

HDMI Converter

How Long Can an HDMI Cable Be?

Unlike many other audio-visual specifications, the HDMI specification doesn’t get a strong enougth signal to produce a good picture.

If the HDMI cable is too long or damaged, you may notice the follwing symptoms:

● Distortion in the picture.
● Single pixels failing to appear in the correct color.
● No video at all, even though the audio plays correctly.

If you need to run the HDMI cable a long distance and find these symptoms appearing, get an HDMI signal restorer to strengthen the signal.

If your TV has a Component Video input, get an HDMI-to-Component Video converter like the one shown in Figure 1.4. This  HDMI video multiplexer is small box with an HDMI input at one end, as shown on the left in Figure 1.4, and a Component Video output at the other, as shown on the right in Figure 1.4. You also need a Component Video cable if you don’t already have one.

If your TV has a Composite Video input, you can get an HDMI-to-Composite Video converter. Similar to the Component Video converter, this is a small box with an HDMI input at one end, as shown on the left in Figure 1.5, and a Conposite Video output at the other, as shown on the right in Figure 1.5. You also need a Composite Video cable to connect the converter to your TV’s input.

HDMI Extender (Optical Use) About Chromecast

The HDMI Extender is also optional, and helps you connect the Chromecast even if does not plug directly into your television. It is, by all accounts, an extension. That is to say, if you cannot reach the back of your television (if it is mounted to the wall, perhaps), the extension will give you the room you need to still use the device. It may also improve your Wi-Fi reception, so hang onto it in case your television prompts you to use it during set up. If you do need it, coonect the HDMI video multiplexer into the television first, and then plug the Chromecast into the extender. This will keep you from damaging the small device before you even get to use it!

There is a small instruction manual that comes in the box as well. Small describes this instructional sheet perfectly because it appears to have been designed and printed for a baby doll to read. It is so tiny, in fact, that it is hard to turn the pages without feeling silly. The good news is, the Chromecast is simplicity as its best, so the manual isn’t really necessary. But it is cute.

You should already have some sort of television or display monitor which has an available HDMI port to plug the Chromecast into. If it has a USB port, that’s also helpful for plugging in the micro-USB power cable to. If your TV doesn’t have the USB port, don’t worry, you can plug the micro-USB cable (included) into the included USB/AC power adapater, and then plug that into a nearby wall outlet.

You’ll want to have a wireless network set up in your home (with a wireless modern and possibly a wireless router). If you have a secure wireless network, make sure you have any password or other info handy to enter for the Chromecast setup.

For streaming content to your Chromecast on your TV or monitor, you’ll need a Mac, Windows or Chromebook Pixel computer.

Additionally, you can use an Android or iOS smartphone or tablet. At this time, only certain apps will work on the mobile devices for streaming content. These include YouTube and Netflix, which you’ll be able to use. In the future, there is very likely to be more apps developed that will allow you to use the Chromecast streaming to your TV.

Video Extender is a kind of hardware devices that allow users to convert video in one signal format into another. For example, the video Extender built by Fiberstore provide simple plug-and-play operation, and include SDI Extenders, HDMI Extenders, VGA Extenders and DVI Extenders. This series of devices enables users to link previous technology formats with the newest updates without requiring a complete overhaul of their audio/video system. S-Video, Composite, Components, Coaxial and RGB Video Extenders. Wide screen video formats are supported, as well. These devices can be used when users to convert a video signal from some devices such as camera, notebook computer to a television. Next we will explain these video Extenders over fibers in detail.

Several Digital Video Multiplexers Types from FiberStore

As we know, a fiber optic multiplexer is a device that processes two or more light signals through a single optical fiber. It is introduced as an effective solutions to a fiber’s transmission capacity using different techniques and light source technologies. By using a multiplexer, media or data signals can be forwarded further, more securely with less electromagnetic and radio frequency interference.

The so called WDM (Wavelength Division Multiplexing) utilizes the total available pass band of an optical fiber. It assigns individual information streams into separate wavelengths, or portion of the electromagnetic spectrum. Frequency and wavelengths can be regarded as the same concept. The only difference is the frequency is typically used to describe the radio carriers. Frequency division multiplexing assigns each signal a distinctive frequency.

Digital video multiplexer is a typical fiber optic multiplexing devices for video and data signal’s fiber optic transmission. Digital video technology emerged as the ultimate facilitator of surveillance needs and has played an important role in the security area, that enables flexible, real-time, highly manageable and tunable solutions. Digital video multiplexer combined with this one-up digital uncompressed technology with WDM technology, make it possible to extend video and data service up to 100km distance simultaneously through one single fiber, and get the real-time high-definition video on the receiver side. This device is usually used for security application to control and monitor video cameras signals in airports, train station and public hotspots.

FiberStore fiber optic digital video multiplexer adopt the advanced international digital video and coarse wavelength division multiplexing (CWDM) technology, these multiplexers can transmit from 1 channel video & audio & data channel to max 64 channel signals in different optical distances. These video multiplexer are single mode and multimode fiber type with multichannel track mount or standard units. Insert card version is also available, which can be inserted into our 16-slot, 19inch 2U or 4U rack-mountable card cage for 10-digit coding and non-compression video transmission. Typical fiber ports of these multiplexer are FC, SC or ST, interfaces are RS232, RS422 or RS485, which can be customized by users for actual demand.

Now, in the following text, let’s overview FiberStore four types of digital video multiplexers: Video multiplexers, video & audio multiplexers, video & data multiplexers, video & audio & data multiplexers.

1-64 Channel Video Multiplexers

Video multiplexers are built on Coarse wavelength division multiplexing (CWDM) and can encodes multi-channels video signals and convert them to optical signals to transmit on optical fibers. It handled several video signals simultaneously, and can also provide simultaneous display and playback features. We provide video multiplexers in different channels such as 1, 2, 4, 8, 16, 24, 32, 64 channels. They are available in both color and black and white video multiplexers, digital video multiplexers and processors. With a video multiplexer, users can record their combined signals on the VCR or wherever else they want to record. Our video multiplexer help users built a cost effective network system with the best process control and quality assurance.

Digital multiplexer has two VCR IN connections and two VCR OUT connections. There is one pair of VCR IN/OUT 4-pin DINI connectors (Y/C) and one couple with BNC connections (composite video). The VCR IN connectors is used to connect the multiplexer to a VCR which will be used to playback recorded images. Connect the Video OUT connector on a VCR to one of the VCR IN connectors on the multiplexer. The VCR OUT connectors are used to connect the digital multiplexer to a VCR which will be used to record video. Connect the Video IN connector on a VCR to one of the VCR OUT connectors on the multiplexer.

Video Data Multiplexers
Video data multiplexers are based on digital video technology to provide fiber optic transmission of video and return or bidirectional data signals in demanding environments. They can provide highly reliable data transmission and expandable data capacity over fiber optic cables up to a few tens of kilometers. The video data multiplexers simultaneously transmit multi-channel 8-bit digitally encoded broadcast quality video over one multimode or single mode optical fiber.

This module is directly compatible with NTSC, AL, or SECAM CCTV camera systems and support RS-485, RS-422, and RS-232 data protocols. These muxes are typically used with cameras that have PTZ capability. The plug and play design ensures adjustment-free installation and operation. LED indicators are provided for instant monitoring system status.

We supply video & data multiplexer in channels includes 1, 2, 4, 8, 16, 24, 32 channel. Typical installation utilizes the transmitter unit at the camera end of the link, and connects via a single fiber optic cable, to a receiver unit at the monitoring end of the link. These Video & Data multiplexers are suitable for concentration management in 1U/2U/4U Racks, and we also can supply the rack chassis for you.

Video & Audio Multiplexers
Video and Audio Multiplexer combines digital video with digital audio to form the embedded signal. It has optical remote monitoring capabilities so that operation can be controlled remotely. The audio video multiplexer can simultaneously transmit 1-64 channels of 8-bit digital encoded broadcast quality video/unidirectional or bidirectional audio signals over multimode or single mode optical fiber. These multiplexers are used in applications where the cameras have P/T/Z capabilities.

We supply video & Audio multiplexer in different channels such as 1, 2, 4, 16 channels, they are ideal for applications of security monitoring and control, highway, electronic policy, automation, intelligent residential districts and so on.

Video & Audio & Data Multiplexers
Video & Audio & Data Multiplexers transmit 1-64 channels of 8-bit digitally encoded broadcast quality video / return or bidirectional data / unidirectional or bidirectional audio over one multimode or single-mode optical fiber. These multiplexers are used in applications where the cameras have P/T/Z capabilities. With Plug and Play design, it can convert, integrate, groom and multiplex multiple video/audio/data streams effortlessly.

The Video & Data & Audio Multiplexers are ideal for a wide range of multiplexing and remultiplexing applications including Broadcast /Studio, CCTV audio and Professional AV applications.

FiberStore is a leading global supplier of telecommunications solutions for the electric utility, pipeline, transportation and industrial applications. This powerful family of optical multiplexers permits consolidation of all telecommunications requirements into a single, integrated network.

Fiber Optical Multiplexers Catalog Introduction of FiberStore

FiberStore is a company that have rich experience in producing and developing fiber optic multiplexer systems, and have several successful commercial product lines for video/data multiplexing in Remotely Operated Vehicles (ROVs). FiberStore optical multiplexers are designed to provide reliable fiber optic transmission of video, audio and data signals in the demanding subsea applications, robust defense systems and other platforms operating in a harsh environments.

Fiber multiplexer is powerful communications equipment. They allow mixing of T1/E1, Ethernet, POTS ports (FXO or FXS) and serial datacom interfaces such as V.35, RS-232, X.21 etc. Together on a single circuit of fiber optic, so that fiber is saved and higher density and capacity networks can be put together. FiberStore multiplexers are supported by industry leadership in fiber optic development, including optical sensors, telemetry systems, connector design, ruggedized optics, and the widest selection of Fiber Optic Rotary Joints (FORJs). All of these fiber optic multiplexers supports remote management and have optional service line ports. Capacity starts with 4T1 or E1 interfaces on low entry models and goes up to 63T1Ss or E1s together on a single strand of fiber optic cable.

Typical optical multiplexers are Video & Data & Audio Multiplexers, PDH Multiplexer. Custom solutions provide support for additional signal formats or unique combinations of standard protocols. Application specific products can be also customized to reduce size or cost, optimize packaging, extend environmental performance, and integrate more directly with other equipment.

Video Multiplexers
Video multiplexer is used to encodes the multi channel video signals and convert them to optical signals to transmit on optical fibers. It handles several video signals simultaneously and it can also provide simultaneous playback features. With the video multiplexer, you can record the combined signal on your VCR or wherever else you want to record.

Video & Data Multiplexers
FiberStore video & data multiplexers provide high reliable fiber optic transmission of video and data signals in demanding environments. A wide range of supported video and data formats ensure the flexibility needed for easy system configuration. Individual data channels can be mixed and matched with a variety of plug-in interface modules. Advanced optical multiplexing (CWDM, DWDM) enables system expansion to 32 video and 256 data channels as well as additional high data rate signal such as HD-SDI, ECL for advanced sonars, and Gigabit Ethernet.

Video & Audio Multiplexers
Video and audio multiplexer combines digital video with digital audio from the embedded signals. It has optional remote monitoring capabilities so that operation can be monitored remotely. Video & Audio Multiplexer is widely used in security monitoring and control, high way, electronic police, automation, intelligent residential districts and so on.

Video & Data & Audio Multiplexers
Video/data/audio multiplexers are designed for users to convert, integrate, groom and multiple video/audio/data streams effortlessly. These multiplexers can transmit and extend a maximum of video, audio and data over fiber cables up to a few tens of kilometer. They are ideal for applications like Broadcast/Studio, CCTV audio and professional AV applications.

FiberStore now offer a full range of multiplexer products, from single channel media converters for Ethernet and HD-SDI to multi-channel CWDM and DWDM multiplexer supporting 16 or more video lines, 128 serial data channels, multiple digital I/O, plus 10/100/100M Ethernet and high bandwidth sonar interfaces, all on a single optical fiber.

Fiber Optic Media Converters Used In Ethernet Networks

About Fiber Optic Media Converter:

A fiber optic media converter is a simple networking device, the fiber to ethernet media converter can converts one network media type (defined by the cable, connector, and bandwidth) into another. They are also used in metropolitan area network (MAN) access and data transport services to enterprise customers. This transition allows any business, no matter what its size, to expand their old network with the latest technology. This flexibility allows for a greater efficiency and harmony between departments and individuals.

A typical media converter is made up of two transceivers, sometimes referred to as media attachment units. These can transmit data to and from each other. Each MAU (Media Attachment Unit) comes with a different industry standard format fibre connector which is able to join different types of media. The basic concept is that one media type enters and another exits. All connectors are up to date with the latest IEEE standards and protocols.

Benefits of Ethernet to Fiber Optic Converters:

  • Protects your investment in existing copper ethernet-based hardware
  • Provides you with the flexibility to add fiber on a port-by-port basis
  • Enjoy the benefits of fiber without have to make wholesale changes
  • Fast ethernet or Gigabit ethernet to multi-mode or single mode
  • Ethernet to fiber and fiber back to ethernet links
  • Create copper-fiber connections with fiber switches

Why used the fiber to ethernet media converter?

Fiber to Ethernet Media Converter models that are best suited for enterprise and Service Provider applications, offer an on-board processor to continuously monitor that both fiber connections are up. This functionality, generally referred to as “Link Pass-Through”, monitors the state of the link to the end devices and ensures that each end-point knows whether the entire link is up or not. Some media converter products do not have this intelligence and simply “nail up” the link even though the fiber link peer is down. With Link Pass-Through, a feature available in all FiberStore Fiber to Fiber Optic Converters, the network’s SNMP management system can be alerted when a fault occurs so that corrective action can take place.

Fiber to ethernet network media converters are used in Cisco Systems, IBM, Nortel, Microsoft and ADC. By using our media converters, these world leading enterprises cut their cabling cost. Based on Transition Point System advantages, users could save the cost while do not degrade the network performance.

FiberStore is an professional manufacturer & supplier of fiber to Ethernet converter and fiber optic cable. All of our fiber media converters are tested in house prior to shipping to guarantee that they will arrive in perfect physical and working condition. If you have questions about optics(such as customized the fiber to ethernet converter,fiber optic cable specifications,ect.), please feel free to contact us at sales@fs.com.

Some Info About Fiber Optic Multiplexer Technology

In the long-distance optical fiber transmission,the fiber cables have a small effect on the optical signal transmission,the transmission quality of optical fiber transmission system mainly depends on the optical multiplexers’ quality,because optical multiplexer is responsible for electrical/optical and optical/electric conversion and optical transmitting and receiving. Optical fiber multiplexer as terminal equipment of transmission optical signal, usually used in pairs, divided into optical receiver and optical transmitter, optical transmitter is used to convert electrical signals into optical signals to realize electrical/optical conversion, and the optical signal input optical fiber transmission.Optical receiver is used to restore a in the optical fiber for optical signal into electrical signal to realize optical/electric conversion. It’s fit and unfit quality directly affects the whole system, so you need to know something about the performance and application of the fiber optic multiplexers, it can help you better configuration and procurement.

What is video multiplexer?

Fiber optic video multiplexer is used to transform video signals to fiber optic signals, it is analog fiber optic video multiplexer and digital video multiplexer, the digital one is more and more used and it is the popular model in current market. This product is generally used in security applications to control and monitor the video camera signals.

Fiber Optic Multiplexer Technology:

Fiber optic multiplexer technology serves single-mode and multimode optical fibers with multichannel rack mount or standalone units. Multiplexers aren’t only for connecting multiple devices across a network. Multiplexers are also commonly used to distribute data from a SONET core, allowing for the distribution of DS-1, DS-3, and other circuit mode communications to several devices throughout a network. Again, this allows for multiple devices to share an expensive resource.

Used by cellular carriers, Internet service providers, public utilities, and businesses, fiber optic multiplexer technology extends the reach and power of telecommunications technologies. Network management systems allow for system service and maintenance, and provide for security, fault management, and system configuration. With advantages like lower costs and longer life expectancies, current fiber-optical networks are aided by improvements in multiplexing technology, and may provide light speed data transmission well into the future. Multiplexed systems also simplify system upgrades since numbers of channels and channel bandwidth is a function of the electronics rather than the transmission line or components.

Feature Of Optical Multipexer:

Fiberstore fiber optic video multiplexer adopt the international advanced digital video and optical fiber transmission technology, these fiber optic multiplexers are various models and can be custom made according to customers’ requirement. Our products can transmit from 1 channel video signal to max 64 channel video signals in different optional distances. They can be with optional audio channel and reverse data channel. Interfaces can be RS232, RS422 or RS485. Fiber optic ports are typical FC, with SC or ST optional. The fiber optic video multiplexers are single mode types and multimode types, used with different kinds of optical fiber lines.We provide some types of optical multiplexers, including video multiplexers,video & data multiplexers,video & audio multiplexers, video & data & audio multiplexers, PDH multiplexer, and we supply optical multiplexer in different channels,such as 1, 2, 4, 8, 16, 24, 32 channels.

Custom Service:

We supply stand alone type fiber optic video multiplexers and chassis type fiber optic video multiplexers,we also have custom service, many types of fiber optic products could custom in our company, all these products are with flexible design according to customer requirement, they are good prices and fast delivery. If you have parameters in the request for your fiber optic products, I think we can offer you all you need.

Protocol Converter Is The Key Component In Communication

The Protocol Converter, a device converts one protocol into other protocol, is ideal for situations where data from monitored equipment is incompatible with the protocols used by the building management system (BMS) or network management system (NMS), such as in cases where legacy monitoring systems are present. The ability of the protocol converter to accept up to 1,024 inputs over 32 modules means flexible integration with multiple alarm and management systems using one simple device. Protocol converters are widely used in process or industrial automation, building automation, substation automation, automatic meter reading and vehicle automation applications.

Protocol converters are normally used with switches, PCIe network cards and fiber media converters, CWDM and DWDM equipment, PDH multiplexers etc. Protocol converter series may put into action the actual transformation in between single E1 protocol port as well as protocol ports of V.35, V.24, RS232 or Ethernet within the tranny system; it may be thoroughly utilized in numerous being able to access problems with regard to providers as well as commercial clients, for example DDN, ATM, as well as for that transformation in between router and E1 port, or even the actual occasion exactly where Ethernet tend to be interconnected from divided internet websites through SDH or even additional tranny gear.

1. Protocol converter can offer local, remote loop-back functions, commanded remote device loop-back as well as pseudo-random code testing perform; loop-back perform may be used without influence on normal network data conversation and can not really lead to the actual meltdown of network;

2. E1 port may support 120ohm/75 ohm opposition concurrently;

3. V.24 port may assistance a rate of 64K or 128K (optional), and may carry out tranny from any kind of specific time-slot within E1 port; also it can function under DTE and DCE modes;

4. V.35 user port may support N*64K (N=1~32) adaptive rate, and may assistance inner, exterior and slave clock modes, in order to end up being designed in order to numerous programs; also it can function under DTE and DCE modes;

5. RS232 port may assistance the actual a good adaptive rate lower than 115.2K;

6. Ethernet port may assistance N*64K (N=1~32) adjustable rate, and may assistance four channels of Switched Ethernet ports and may end up being channel-isolated; Ethernet mode may assistance 10M/100M semi-duplex as well as 10/100M full-duplex modes as well as adaptive mode (optional), as well as assistance VLAN protocol;

7. Ethernet protocol convertor may identify the actual delivering as well as getting information caution associated with E1 port instantly, as well as switch off Ethernet function instantly.

How To Choose A Converter

There are basically two types of protocol converter which are listed below.

1. Software Protocol Converters
2. Hardware Protocol Converters

Some of the most popular industrial automation protocols are DF-1, CAN (Controller Area Network), Ethernet RS232 Converter, Ethernet RS422 Converter, ControlNet, DeviceNet, HostLink Protocol, Profibus, Modbus, Honeywell SDS, HART Protocol, EtherNet/IP etc. And some Industrial control system protocols like MTConnect, OPC, OPC UA. Select the converter that best matches your application and communication setup, keeping in mind three key features:

Number of connections—some converters support single connections, while others provide as many as 32 multiple connections with multiple serial ports.

Baud rate—we have seen converters with baud rates as high as 921kbaud. Converters with lower baud rates are less expensive, but their performance is slower.

Connectivity protocol—the converter must support the protocol used by your network, either TTL serial, RS-232, RS-422, or RS-485.

Consider the number of connections, baud rate and connectivity protocol, you can finally buy a protocol converter meet your applications.

Video Multiplexer For CCTV And Surveillance Applications

Fiber-optic-based video and audio multiplexers are designed specifically for pro A/V and broadcast applications. Digital 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, Audio Video Multiplexers and video Audio Data Multiplexer. We supply video multiplexer in different channels, such as 1, 2, 4, 8, 16, 24, 32 channels. The Data Audio Video Multiplexer is ideal for a wide range of multiplexing and remultiplexing applications including Broadcast/Studio, CCTV audio and Professional AV applications.