Sorry, we were unable to sign you in.
Please check your email address and password.
Your last basket is still available
The basket of your last visit to Black Box is still available.
Would you like to view the products in this basket?
The Black Box website uses cookies. By continuing the use of the Black Box website, or by pressing the agree button on the right, you consent to the use of cookies on this website.
More information.
...images on your monitor. The effect is known as delay skew, but do you know what causes it? • Different lengths • Believe it or not, it’s the cables. When properly connected, a CAT5 extender uses three out of four CAT5 cable pairs to separately...
...serves as an entry or exit point to a property, a gateway serves the same purpose in the networking world. It’s the device that acts as a network entrance or go-between for two or more networks. • Different types of gateways • There are different ty...
...carries analog RGB with separate horizontal and vertical sync signals and is presented on an HD15 connector (also called 15-pin D-subminiature). • When VGA was introduced by IBM® in 1987 for PC video display, it was a huge improvement over the e...
Digital Video Formats • Digital Video Formats • SDI video • The serial digital interface is a format most commonly found in high-end broadcasting applications. Although SDI transmits uncompressed, unencrypted digital video signals, it typicall...
...video formats must limit the transmission bandwidth required for the signal. Computer graphics formats, in contrast, are far less restricted in bandwidth, but they must deliver a picture suitable for viewing from very short distances. • We’ll expl...
...consider a UPS • What it is • An uninterruptible power supply (UPS), also known as an uninterruptible power source or a battery backup, is a device that maintains a continuous supply of electric power to connected equipment by supplying power from...
Fibre vs. Copper • Fibre versus copper. • When planning a new or upgraded cabling infrastructure, you have two basic choices: fibre or copper. Both offer superior data transmission. The decision on which one to use may be difficult. It will of...
...networks • G.703, an ITU-T standard that outlines how to interface digital high-speed circuits, has become the basis of all telecommunications networks. Originally, voice channels were multiplexed together by frequency-division multiplexors, whic...
...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 competes directly with HDMI®. Unlike HDMI, however, DisplayPort is an open standard wit...
Sign in
