Greatly reduce the cost of digital video distribution

Installers and end users looking for an economical way to distribute and scale 1080p video content across a wall of tiled screens, look no further. The MediaCento™ IPX Multicast extension system multicasts HDMI video and audio to up to 256 screens on a network. Even better, it can optionally be used to output source video on video walls, so you can easily project video content on a larger scale to create visually stunning video displays.

Integration is easy and receivers install directly into your existing LAN infrastructure. There’s no need to run expensive dedicated video links from a back room to displays in lobbies. A single transmitter can deliver multimedia to hundreds of displays.

The system uses visually lossless compression technology, packetizing signals so source content can be delivered MediaCento™ IPX Multicast Receiveranywhere you have Ethernet wiring. Simply plug in as many receivers as you need for your remote screens, and use a standard Gigabit network switch with IGMP to control the multicast traffic.

Continue reading


Everything you need to know about DKM Matrix technology

The new system for KVM matrix switching is more flexible, more extendable, and more efficient than ever before. These new configurations bring better functionality and increased productivity to organizations, especially in the post-production broadcasting and professional audio-visual industries.

For example, the new technology offers and array of ports that can be dynamically allocated as input or output. This means that ports can be connected to a CPU or connected to a console, and ports can be switched according to the users’ requirements. As long as you have available ports, you can switch in any combination of inputs and outputs –it doesn’t need to be a one-to-one configuration (i.e. 160-port chassis equals 80 inputs and 80 outputs).

The technology supports numerous data streams in varied combinations through extenders: video, KVM, audio, serial, USB 2.0. Because of this updated technology, switching is instantaneous, with no delay. Competitors’ IP-based solutions can take up to 10-15 seconds to switch video streams.

KVM switching in general is an efficiency-creating solution. These new matrix switching systems take this flexibility and efficiency even further, especially for A/V professionals. Instead of a patchwork of switches and cables, we’ve developed a system that comes with digital or analog audio, serial RS-232, high-speed USB 2.0, and HID tablet support. It’s also smaller and faster, freeing up space in your data center. Plus they’re cooler and quieter, eliminating excess noise and heat.

Continue reading

Alternatives to analog video cable extension

When VGA (Video Graphics Array) was introduced by IBM® in 1987 for PC video display, it was a huge improvement over the earlier EGA DB9 connector. VGA, the basic format, supports resolutions up to 640 x 480 with 256 colors. You can find it on many video cards and computer monitors.

SVGA (Super VGA), EGA, and later formats continued the drive to provide ever-sharper images and greater color depth. Plus, over the years, VESA standards have brought structure and interoperability to a market that was becoming a mixture of often incompatible SVGA graphics cards.

Later formats supported even higher resolutions—oftentimes, rivaling those of digital 1080i and 1080p displays. These later formats include SXGA (1280 x 1024), UXGA (1600 x 1200) and WUXGA (1920 x 1200).

Other analog video connectors:
Composite video—Typically presented as a yellow RCA connector, the analog Composite interface has been the standard interface for consumer TV equipment. As its name suggests, Composite video has the luminance (black and white), chrominance (color) and sync pulses combined in one signal.

S-Video—Also called Y/C video, S-Video was introduced to overcome some shortfalls associated with Composite video. It’s a less encoded video format, transmitting color (C) and luminance (Y) information separately to produce a sharper image.

Continue reading

Multicasting video over a LAN

How you set up your network for voice, data, video, and audio transmission can mean the difference between a network that operates efficiently and transparently to users and one that’s slow and tedious.

Think of your network as a river of data. You have a steady current of data moving smoothly down the channel. All your network users are like tiny tributaries branching off the main river taking only as much water (bandwidth) as they need to process data. When you start to multicast voice, video, data, and audio over the LAN, those streams suddenly become the size of the main river. The result is that each user is basically flooded with data and it becomes almost if not impossible to do any other tasks. This scenario of sending transmission to every user on the network is called broadcasting, and it slows the network down to a trickle. But there are network protocol methods that alleviate this problem.

Unicasting vs. multicasting
Unicasting is sending data point-to-point, from one network device to another. Multicasting is transmitting data from one network device to multiple users.

When multicasting with Layer 2 switches, all attached network devices receive the network packets, whether they want them or not. When you multicast with Layer 3 switches (with multicast support), you send the network packets to only the exact client/receives who want them. You control where the river of data goes and put up locks to keep the river out of other user streams.

Continue reading

%d bloggers like this: