SERVSWITCH™ WIZARD EXTENDER

The first section of the report indicates the length differences between the twisted pairs that are carrying the red, green, and blue color signals. One of the colors will have a reported length difference of “+0.0M”; this is the color carried by the shortest twisted pair. The other reported differences are how much longer the other pairs are than the shortest one.

TECHNICAL NOTE

Each meter of the length differences between the pairs that the Extender reports is equivalent to 5 nanoseconds of delay. For comparison, you can get a rough estimate of your system’s on-screen “pixel time” by multiplying the horizontal pixels by the vertical pixels by the refresh rate and then dividing 1 by the result. If the delay time is greater than the pixel time, color split will be noticeable.

For example, if the maximum reported difference is 1.5 meters, the delay between color signals will be 1.5 x 5 ns = 7.5 ns. If the screen resolution being used is 1024 x 768 x 75 Hz, the pixel time is roughly

1 / (1024 x 768 x 75) = 16.9 ns. Consequently, the color split will be less than half a pixel time and so is unlikely to be noticeable.

The second section of the report indicates which of the Skew Compensator’s top-panel switches should be set to ON to compensate for the twisted-pair length differences indicated by the report. All other switches should be OFF. You will see that each of these switches is constructed using 4 individual sliders. To set a switch to ON, all four sliders must be moved to the ON position. To set a switch to OFF, all four sliders must be moved to the OFF position. The example skew report on the previous page indicates that switches A3 and B4 should be ON and all the other switches should be OFF.

To compensate for the skew, set the Skew Compensator’s switches as indicated in the report and use a second cable to insert it into the twisted-pair cable run between the transmitter and receiver, as shown in Figure 7-2. If this is a lower- quality patch cable, it should be as short as possible. It doesn’t matter which cable you plug into which of the Compensator’s two RJ-45 jacks; the Compensator is fully bidirectional.

NOTE

Because the cabling between the CPU and the transmitter can itself introduce some signal skew, sometimes setting the Skew Compensator manually, by trial and error, produces better results than relying on the skew report. For any given wire pair (color), switches 1 and 2 each introduce a 10-nanosecond delay, switch 3 introduces a 5-nanosecond delay, and switch 4 introduces a 2.5-nanosecond delay. For more information, refer to the Skew Compensator’s manual.

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Black Box ACU5010A, ACU5011A manual Technical Note
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ACU5010A, ACU5011A specifications

The Black Box ACU5011A and ACU5010A are advanced distribution solutions designed to enhance audio and video signal management in professional environments. These models are particularly suited for use in conference rooms, classrooms, and other multimedia settings where reliable and high-quality signal transmission is critical.

One of the standout features of the ACU5011A and ACU5010A is their capability to extend HDMI and other AV signals over long distances. Both models support transmission distances of up to 330 feet (100 meters) when using a compatible Cat5e or Cat6 cable. This makes them ideal for installations where the source and display devices cannot be placed in close proximity. The units support a wide range of resolutions, accommodating 1080p, 4K, and even 3D video formats, ensuring that users can achieve top-tier visual quality.

In terms of connectivity, the ACU5011A and ACU5010A offer multiple input and output options, including HDMI and VGA ports, to accommodate various av devices. The ACU5011A model specializes in HDMI, while the ACU5010A emphasizes VGA connectivity. This flexibility allows users to connect different types of devices seamlessly, promoting versatility in different applications.

Both models incorporate advanced signal compression and balancing technologies, reducing the risk of signal degradation and maintaining the integrity of audio and video signals over long distances. Furthermore, they feature built-in equalization and hot plug detection, ensuring that the signals are automatically optimized for the highest quality output upon connection.

Another notable characteristic of the ACU5011A and ACU5010A is their ease of installation and user-friendly design. They come with clear indicators for power and signal status, allowing users to troubleshoot issues quickly and efficiently. Additionally, the compact form factor allows for easy integration into existing systems without the need for extensive modifications.

In summary, the Black Box ACU5011A and ACU5010A represent cutting-edge solutions for audio and video signal management. Their longevity of signal transmission, solid compatibility with multiple devices, and sophisticated signal processing capabilities make them excellent choices for high-demand environments. With their focus on quality, reliability, and ease of use, these models stand out as top contenders in the field of AV distribution technology.
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