...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 a separate source when uti...

Interface-powered converters. • Interface-powered converters • Plug directly into RS-232 devices • Interface-powered converters plug directly into RS-232 devices, eliminating the need for external power supplies. These converters draw their po...

...USB also distributes power, many USB devices don't require a separate power supply, although a bus-powered device must be attached upstream to either a host PC or a powered hub. • The Black Box explain series make technology simple. It provides y...

Power Sum NEXT (PS-NEXT) • Power Sum NEXT (PS-NEXT) • Power Sum NEXT (PS-NEXT) is the sum of the total NEXT power copuled to a wire pair from all other adjacent pairs. NEXT (Near-end crosstalk) is the level of interference that occurs between ...

...that's caused when power is switched on or off to a high-powered device. Surges can produce high-transient voltages, which damage LAN and serial interfaces that typically use less than 12 volts to transmit. • Avalanche diodes • Surges can be pr...

...Box give you computer-controlled switching for a variety of applications. • Code-Operated Switches • Code-operated switches enable 1 device to control up to 64 connected devices, depending on the code-operated switch. For instance, you can use one...

...hub must be externally powered in order to supply enough power to attached peripherals. • Peripherals on distance • A hub can also add additional distance between your PC and a peripheral. Each USB segment can be up to 5 metres (16.4 feet). Because...

...Ethernet • Ethernet has evolved into the most widely implemented physical and link layer protocol today. • Thick en ThinNet Ethernet: 10 Mbps • Fast and Giga Ethernet: 100 and 1000-Mbps • 10-Gigabit Ethernet: 10 Gbps • PoE Power over Ethernet