DVI Extender - Extends DVI Video Long Distances Over Cat5 & Cat6 Cables

A DVI Extender is used to extend the distance a DVI display can be located from a DVI-based computer. It uses CAT 5 cables for connecting the input and output devices and delivers crisp, clear images with no loss of signal. High resolutions up to 1920x1200 are supported by these devices. A local transmitter is placed next to the video source and a receiver is placed next to the display device and the two are connected via UTP or STP cables. Since these devices transmit signals over the CAT5e cables, they not only are inexpensive but also eliminate the usual clutter associated with standard DVI cables.

This CAT5 DVI Extender is easy to use and install and works on the plug and play principle. They are available in a point to point version as well as 2, 4 and 8 port splitter units. Power adapters are included and are only required at the remote location. Many other varieties of this extender unit are also available on the market today including the single link DVI over fiber and DVI dual link fiber optic extender. While the former supports a resolution of 1080p/1900 x 1200, the latter supports up to 2560 x 1600 often seen and required in medical imaging environments. These single and dual link fiber products are capable of reaching even greater distances than the Cat5 units.

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CAT5 DVI Extender unit also has the necessary CE, RoHS and FCC regulatory approvals and are compatible with all operating systems. They are equipped with LEDs which indicate the DVI activity and operate at a video amplifier bandwidth of 1.65 GHz. The point to point units have an input for one DVI-D connection while the splitter units include DVI video and stereo audio connections in addition to a local DVI port on the transmitter.

An ideal solution for a wide range of applications where the local image has to be displayed at one or more remote locations, the DVI Extender is used in call centers, airports, financial institutions, restaurants, hospitals, digital signage applications, exhibitions, trade shows, military and government facilities.

DVI Extender - Extends DVI Video Long Distances Over Cat5 & Cat6 Cables

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HDMI Extender - Long Distance High Speed Relaying of HD Signals

High Resolution high definition video can be transferred over large distances using a HDMI Extender. Increased distance is achieved by securing connections between the receiving and transmitting unit either through Cat5 cables or fiber optic cables. While the transmitter is connected to the HDMI source, the receiver is connected to the monitor. Once the connections are in place, the device is ready to be used. Working on simple plug and play functionality, it does not require any additional software or drivers in order to be operational. Since category cables are used for connections, it reduces clutter caused by bulky VGA cables and also eliminates the distance limitation imposed by HDMI cables.

In order to make a long distance connection work, the HDMI Fiber Optic Extender uses a standard SC duplex multimode fiber optic extender cable. DDC and CEC signal line is transmitted by copper line (RJ45 connector). It provides full support for all HD resolutions up to 1600p including 1080i, 1080p, 1440p, HDCP, multi channel audio, CEC and IR remote control. Control over this unit is exercised using IR Remote control.

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Compatible with HDMI standard 1.3, these units are HDCP compliant. Available in lengths varying from 33feet up to 330 feet, these extenders are capable of supporting high quality video with resolutions up to 1080p and 1920 x 1200. It is available in many port sizes and with optional stereo audio or RS232 control. Easy installation, plug and play functionality, compatibility with all major operating systems, regenerating high definition digital video and audio signals and removing signal noise are some of the key features of the HDMI Cable Extender. Due to all the above mentioned features, this device finds its usage in show rooms, board rooms, trade shows, corporate presentations, conference and training facilities, remote monitoring facilities, airports, hospitals, hotels, home theater set ups and digital signage solutions.

The main factor contributing towards increased demand of these extenders is the ability to support HDCP (High-Bandwidth Digital Content Protection) which is a standard used to protect copyrighted digital content and is essential to ensure a successful display of HDCP-compliant video. HDCP compliance is done by encrypting the video signal between the source device and the display. This feature ensures that the HDMI Extender provides crisp and clear HDMI signals.

HDMI Extender - Long Distance High Speed Relaying of HD Signals

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SATA Compliance Testing - SATA, ESATA and Speed For the Future

The Serial Advanced Technology Attachment (SATA) computer bus is a storage-interface for connecting host bus adapters, often found in laptops and desktop motherboards to mass storage devices. SATA host adapters and peripherals communicate with each other via a high-speed serial cable.

The Serial ATA International Organization (SATA-IO) is the group responsible for developing, managing and driving adoption of SATA specifications. Users of the SATA interface benefit from greater speed, easy-to-use upgradeable storage devices and simpler configuration.

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The SATA interface debuted in 2001, and it is now the most popular interface for PC applications. With data transfer rates of 1.5 Gbps, SATA 1.0 soon became a replacement for the Parallel ATA (PATA) interface. As of 2009, SATA has replaced all but legacy ATA in all consumer PCs being shipped. SATA is advantageous over PATA in several ways, including its smaller and less expensive cable, faster and more efficient data transfer and ability to hot swap, or add/remove devices while in operation.

The next generation of SATA doubled the data transfer rate to 3 Gbps. The SCSI interface had been able to accept several requests and respond to them in the order which minimized response time. This feature, called native command queuing (NCQ), was adopted as an optional feature for both SATA 1.5 Gbps and SATA 3 Gbps devices. Given the importance of backward compatibility between SATA 1.5 Gbps and SATA 3 Gbps devices, SATA 3 Gbps is designed to fall back to SATA 1.5 Gbps when in communication with SATA 1.5 Gbps devices.

eSATA

Initially, SATA was designed as an internal, inside-the-box technology; however, designers quickly realized that the interface could be expanded outside the PC, bringing the same performance and features to external storage needs. This led to the development of a new connector called external SATA or eSATA which is specified for external devices.

With eSATA, consumers can receive the same benefits that SATA brings to storage. eSATA was released as a new standard in 2004, with specifically defined cables, connectors and signal requirements. It is hot pluggable and provides more performance than existing solutions. Several benefits of eSATA include its robust and user-friendly external connection, its ability to utilize a shielded cable up to 2 meters and its cost (eSATA delivers a higher gigabyte transfer rate per dollar than existing storage interfaces and does not require a protocol translation chip).

There are a few differences between the shielded connector and the internal connector. In order to prevent the use of unshielded internal cables in external applications, the external connector has no "L" shaped key, and the guide features are offset and smaller. To prevent damage, the insertion depth has increased by 1.6 mm to 6.6 mm and the contacts are mounted back farther in the receptacle and the plug. The cable also has an extra layer of shielding and the connectors have metal contact points. Additionally, there are springs as retention features built into the connector shield on both the top and bottom surfaces.

One key advantage of eSATA over other interfaces is its speed (up to 6 times faster than USB 2.0 or 1394). As consumers continue to collect a swelling number of high resolution photographs, videos and music files, data transfer rate is increasingly important. By using an eSATA interface, end-users are able to back up their computer systems significantly faster than with existing external storage solutions.

Because SATA is the common standard interface in nearly all new hard drives, eSATA doesn't require the overhead of converting the signal between the external interface and the internal IDE drive. Rather, a buffered direct connect is all that is needed to extend the computer's internal SATA ports outside of the PC.

Applications for eSATA include external direct attached storage for notebooks, desktops, consumer electronics and entry servers, and also support for multiple streams of content such as parallel read and write on a DVR.

Looking forward to the SATA 3.0 specification

The current SATA rev. 2.x specifications detail data transfer rates up to 3.0 Gbit/s. SATA IO presented the draft specification of SATA 6 Gbit/s physical later last year. The full 3.0 standard is anticipated to be available this year. While hard disk drives hardly saturate the 1.5 Gbps bandwidth of original SATA, a move from SATA 3 Gbps to SATA 6 Gbps will benefit the flash read speeds of ONFI drives that can reach well over 500 MB/s.

The new specification will include a few extensions to the command set, namely in the area of data and command queuing, and the enhancements are geared to improve quality of service for video streaming. The standard will support distances up to one meter. The new specification may require higher power consumption for supporting chips; however, new process technologies and power management techniques are expected to combat the potential problem. The future standard will be backward compatible with SATA 2.x specifications.

Ben Anton, 2009

SATA Compliance Testing - SATA, ESATA and Speed For the Future

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VGA Cable - Enables High Resolution Video Extension

VGA Cables are extension cables which transmit video signals between PC's or laptops and displays or projectors. They are also referred to as VGA extension, Computer Cable, Monitor cable, and VGA video cable. These cables extend the amount of distance you can separate a PC from a display, and typically can allow users to view the display up to 100 feet away from the computer. For distances over 100ft and up to 1000 ft, VGA video extender over Cat5 and UTP VGA Video Splitter Extender are recommended as VGA Cables can become costly. Construction of the VGA computer cables ensures that they provide excellent picture quality at a resolution of 1600 x 1200 without ghosting or degradation of images. These video cables are compatible with PC, SUN or MAC systems with VGA Video connectors.

Manufactured using coaxial and twisted pair signal lines plus ferrite cores on either end, these cables provide optimum video performance. Copper braiding and aluminized Mylar foil are used to shield the VGA connectors. The gold plated pins on these connectors enable noise suppression whereas the triple shielding feature ensures that there is no loss of data. These cables are constructed using the multicultural technology. These cables are UL tested and certified and are available in lengths ranging from 3 ft to 100 ft. The VGA video cable or monitor cables are available with male to male as well as male to female connectors. These connectors have 15-pins in three rows of five pins each and are found on most video cards, computer monitors, cameras, projectors and high definition televisions which support VGA connections. Their main job is to carry the analog component of the video signals.

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With changes in technology, DVI cables are slowly replacing the VGA cable. However the older versions of graphics cards still use the 15 pins VGA interface to connect the video graphics controller and monitor. These cables are also priced much cheaper than those which can also transmit digital signals and are used in networking applications. VGA cables are great to use in existing applications as a cost effective solution over replacing older configurations with digital technology in order to extend the life of your projects.

VGA Cable - Enables High Resolution Video Extension

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BNC Connector - What Is It Meant For?

BNC connector is a radio frequency spectrum and can be adapted as a power line to join electronic tools. There are several versions of BNC connectors in the market at this time. Some of them are TNC and triaxial connectors to name a few.

The BNC connector also known as Bayonet Neill-Concelman or is a Radio Frequency spectrum (RF) connector adapted as coaxial wire, is bascially adapted to connect a television or a radio and other radio-amplitude electronic equipment. It is adapted in frequencies which are below 3 Ghz. The connector is used for RF signal connections. It is an option to the RCA connector when used for composite video on mainstream video devices, although large consumer electronic devices with RCA jacks are usually used with BNC-only video appliances via simple adapter. BNC connectors are commonly used on 10base2 thin Ethernet networks, both on chain interactions and network cards. The TNC (threaded) connector is mostly adapted for standard performances at higher frequencies than adapted with the BNC connector.

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The name of the connector is derived from the collaboration of two things. They are listed as below:

1)The connecting mechanics that has been employed behind the working of the connector
2)The names of the two inventors of the device. Those two inventors were Carl Concelman and Paul Neill, both of whom worked in the Bell Labs. Their main purpose was to develop a connector that used the principle of bayonet mount mechanism for locking.

The connector was a practical experiment, based on the research of Octavio M. Salati. Neill and Concelman perfected an earlier design and created a connector that has been adapted in several applications over the last several decades. It has been organized to process both the serial digital inter-face and the analog video broadcast. It is also capable of audio-interface managing transmissions.

As mentioned before the BNC connector is used for RF signal connections, in digital and analog video broadcast. Apart from that, it is useful for aviation electronics, amateur radio antenna connections and other types of electronic test devices and so on. They exist in 50 and 75 ohm versions. During its early days, all the connectors were 50 ohm and were joined together with different cables and the differences in the wires were not very noticeable at a lower amplitude. The newer ones, i.e., the 75 ohm category may be recognized by the absent or the reduced dielectric in the mating ends. The different wires can be mated with each other, although the differences may lead to signal reflections. The 75 ohm connectors are mostly used for DS3 Telco central office applications and are also used in video and 50 ohm is used for RF and data.

There are different types of connectors which are similar to BNC connector. They are briefly listed as follows:

A miniature version of BNC, known as TNC is also available in the market. It is superior to BNC and at microwave frequencies
Triaxial BNC connector, which was mostly adapted in NIM electronics. These have been replaced by LEMO connectors which permit higher density.
In USSR, the connectors were replicated as SR-75 which is Russian:-75 and SR-50 which is Russian: -50.

BNC Connector - What Is It Meant For?

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