...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 power from the connected RS-232 device’s signals, normally the Transmit D...

...off your computer—USB devices are completely hot-swappable. Because 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. •...

...port. • Before the devices or end stations can access the network resources through the ports under 802.1x control, the devices or end stations connected to a controlled port send the authentication request to the authenticator. The authenticat...

...26451. • Remote Access Servers • The device that takes calls from remote users and connects them to the network is known as a remote access server (RAS). A RAS is generally a standalone device that attaches directly to a network via Ethernet or Tok...

...equipment —especially servers— generates a lot of heat in a relatively small area. Today’s servers are smaller and have faster CPUs than ever. Because most of the power used by these devices is dissipated into the air as heat, they can really stra...

...switches enable 1 device to control up to 64 connected devices, depending on the code-operated switch. For instance, you can use one modem—not eight—to control eight devices. • Code-operated switches are ideal for applications that require rem...

...you will need a print server and a router to send and receive e-mails. • If you send e-mails and make appointments with your customers you surely need to have the correct time on your computer. Computer clocks are not as accurate as they should be...

...combinations and which server was connected to which port—leading to many cryptic, scribbled notes attached to the switch and to the workstation. • Today's versions • But with the advent of on-screen menu's, an operator can use easy-to-read, pop-up...