PoE phantom power • PoE phantom power • PoE over Gigabit Ethernet • 10BASE-T and 100BASE-TX Ethernet use only two pairs of wire in 4-pair CAT5/CAT5e/CAT6 cable, leaving the other two pairs free to transmit power for Power over Ethernet (PoE) a...
...FREE Tech Support • • Power and Surge Protection • PDUs - Power Distribution Units • Convenient rackmount power. • Provide overvoltage protection. • Choose from 15-, 20-, or -30 amp circuitbreakers. • Available with front and rear outlets and di...
Power problems. • Power-problems • Sags • The Threat — A sag is a decline in the voltage level. Also known as “brownouts,“ sags are the most common power problem • The Cause — Sags can be caused locally by the start-up demands of electrical de...
...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...
Power • Technology made simple - "Black Box Explains" provides you with a clear, concise overview of many technologies and their functionality, so you can make an informed purchasing decision. • Check out our IT knowledgebase for indepth info ...
PoE Power over Ethernet • What is PoE? • The seemingly universal network connection, twisted-pair Ethernet cable, has another role to play, providing electrical power to low-wattage electrical devices. Power over Ethernet (PoE) was ratified by...
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...
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