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DisplayPort cable.

DisplayPort is a digital video interface that was designed by the Video Electronics Standards Association (VESA) in 2006 and has been produced since 2008. It’s incredibly versatile, with the capability... more/see it nowto deliver digital video, audio, bidirectional communications, and accessory power over a single connector.

DisplayPort cables are targeted at the computer world rather than at consumer electronics. DisplayPort is used to connect digital audio/video computers, displays, monitors, projectors, HDTVs, splitters, extenders, and other devices that support resolutions up to 4K and beyond. Unlike HDMI, however, DisplayPort is an open standard with no royalties.

With the proper adapters, DisplayPort cable can carry DVI and HDMI signals, although this doesn’t work the other way around—DVI and HDMI cable can’t carry DisplayPort. Because DisplayPort can provide power to attached devices, DisplayPort to HDMI or DVI adapters don’t need a separate power supply.

DisplayPort supports cable lengths of up to 15 meters with maximum resolutions at cable lengths up to 3 meters. Bidirectional signaling enables DisplayPort to both send and receive data from an attached device.

DisplayPort v1.1: 10.8 Gbps over a 2-meter cable.

DisplayPort v1.2: 21.6 Gbps (4K). DisplayPort v1.2 also enables you to daisychain up to four monitors with only a single output cable. It also offers the future promise of DisplayPort Hubs that would operate much like a USB hub.

DisplayPort v1.3: 2.4 Gbps. (5K)

The standard DisplayPort connector is very compact and features latches that don’t add to the connector’s size. Unlike HDMI, a DisplayPort connector is easily lockable with a pinch-down locking hood, so it can't be easily dislodged. However, a quick squeeze of the connector releases the latch.

The Mini DisplayPort (MiniDP or mDP) is a miniatured version of the DisplayPort interface. It carries both digital and analog computer video and audio signals. Apple® introduced the Mini DisplayPort connector in 2008 and it is now on all new Mac® computers. It is also being used in newer PC notebooks. This small form factor connector fully supports the VESA DisplayPort protocol. It is particularly useful on systems where space is at a premium, such as laptops, or to support multiple connectors on reduced height add-in cards.

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Product Data Sheets (pdf)...iCOMPEL P Series 2U Publisher Unit with DVB TV Capture



Black Box Explains...Digital Visual Interface (DVI) and other digital display interfaces.

There are three main types of digital video interfaces: P&D, DFP, and DVI. P&D (Plug & Display, also known as EVC), the earliest of these technologies, supports both digital and... more/see it nowanalog RGB connections and is now used primarily on projectors. DFP (Digital Flat-Panel Port) was the first digital-only connector on displays and graphics cards; it’s being phased out.

There are different types of DVI connectors: DVI-D, DVI-I, DVI-A, DFP, and EVC.

DVI-D is a digital-only connector. DVI-I supports both digital and analog RGB connections. Some manufacturers are offering the DVI-I connector type on their products instead of separate analog and digital connectors. DVI-A is used to carry an analog DVI signal to a VGA device, such as a display. DFP, like DVI-D, was an early digital-only connector used on some displays; it’s being phased out. EVC (also known as P&D) is similar to DVI-I only it’s slightly larger in size. It also handles digital and analog connections, and it’s used primarily on projectors.

All these standards are based on transition-minimized differential signaling (TMDS). In a typical single-line digital signal, voltage is raised to a high level and decreased to a low level to create transitions that convey data. TMDS uses a pair of signal wires to minimize the number of transitions needed to transfer data. When one wire goes to a high-voltage state, the other goes to a low-voltage state. This balance increases the data-transfer rate and improves accuracy. collapse


Planning a digital signage system.

How to plan a digital signage project. Considering the many available digital signage solutions might seem like an overwhelming task. But taking some time to research and understand your options will... more/see it nowbe well worth the investment for your institution. Follow these key steps: 1. You need to understand and articulate the objective at the start. Clearly define the goals and determine how you will measure and analyze against the goals. Determine what information you want to communicate and for what purpose. You may want it to give you one or more of the following: • Sales uplift. • Brand messaging. • Entertainment for waiting customers. • Better internal communications. • Public messaging. • Third-party advertising. It is not only imperative to understand what you want the signage to accomplish but also how it will be evaluated. In short, “How will the success or failure of the system be judged and by whom?” What metrics of judgment will be used: ROI, ROO, or other qualifiers? 2. Clearly define the content: The success of any digital signage system starts, of course, with the content. It must look fresh, exciting, and professional. Who will create it and how will it be presented? Do you have internal resources and expertise, or will you need to outsource content creation? A good source of creative and editorial help can be found in aspiring graphic designers culled from the student ranks, in addition to your school’s art department, yearbook and newspaper staffs, and TV studio (if you have one). 3. Invest the time to understand your options: Once you’ve decided on content, you need to consider the infrastructure that will deliver it and study your display options: LCD vs. plasma? RSS feeds? Live video? Remote management? Playback verification? The options will seem limitless, so taking time to sort through them is imperative. 4. Involve all the appropriate stakeholders: The communications/information department should be involved at the start, considering that your digital signage will likely be used for external community relations. If it‘s a K–12 application, you’ll need to include not only your district’s superintendent, principals, purchasing personnel, and IT staff, but also quite possibly instructional technology and AV staff, as well as maintenance, curriculum, athletic, and cafeteria directors. 5. Figure out how you’re going to pay for it: Digital signage is often viewed by some as a luxury item? —? particularly in the face of shrinking school budgets. But because it can also be used as a tool for emergency communications and notification, administrators can easily make the case that digital signage is a must-have component of any crisis plan — especially in this day and age when school violence incidents capture news headlines. Consider government sources of funding for your digital notification system (federal funds are available from the U.S. Department of Homeland Security for pre-disaster mitigation and preparedness, as well as the U.S. Department of Justice, for instance). Whether it’s earmarked entirely as an IT expenditure or apportioned across multiple departments in your budget, you need a spending roadmap in addition to a developmental one. The hardest part with this may be determining the total cost of ownership over the life of the system, including any nickling-and-diming with ongoing licenses and upgrades. College administrators, however, can easily make the case from a cost-savings perspective. Having to constantly update traditional signage across a campus can be quite costly. Paper signage is expensive to print and replace regularly. With digital signage, no printed material is necessary, so both time and cost savings can be made, and the environmental impact is minimized. 6. Decide how to implement the solution: Based on your deployment size and scope, decide if you can implement it in-house or if you need the help of a professional integrator. A number of “out-of-the box” systems can be set up with relative ease. But the more dynamic and complex the system, the more complicated the implementation and ongoing management? — ?and the more likely you’ll need outside help. collapse


Product Data Sheets (pdf)...iCOMPEL P Series VESA Mountable Subscriber Unit


Product Data Sheets (pdf)...Rackmount Media Storage Drawers and Partitions


Product Data Sheets (pdf)...Video Mounts


Black Box Explains... Digital Optic Cable

Many new, high-quality Mini Disc, pro-audio, DAT (Digital Audio Tape), CD, DVD, and laser disc players, as well as digital amplifiers, DSS satellite receivers, and computer sound cards, are manufactured... more/see it nowwith digital optical output connectors.

These connectors attach to optical cables, which are constructed with a PVC jacket and a plastic core. The cables transfer information accurately over short distances via digital light signals with low loss and no distortion.

Digital optical cable with plastic-core construction is less expensive than fiber optic cable with a glass core, but it still provides the benefits of optical transmission over short distances.

Digital audio makes it possible to use high-quality digital-to-analog converters, which help to maintain the integrity of sound signals from high-end electronic devices.

The two types of connectors associated with digital optical transmission are TOSLINK®, a Toshiba® trademark, and the 3.5-mm Mini Plug connector. collapse

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