Terminal Server • A terminal server (sometimes called a serial server or a console server or a device server) is a hardware device that enables you to connect serial devices across a network. • Terminal servers acquired their name because they...

Free Space Optics. • Free Space Optics • Advantages of Free Space Optics • LaserLinks are capable of transmitting virtually any kind of digital information including data, voice and video. Thus they fit easily into a wide variety of applicatio...

What is Digital Signage? • What is Digital Signage • The benefits are significant • Replacing traditional billboards, point-of-sale displays, and other static signage, digital signage has emerged as a great new way to catch the attention of an...

Standard and ThinNet Ethernet • Thick and ThinNet Ethernet: 10-Mbps • As a result of research done at Xerox Corporation in the early 1970s, Ethernet has evolved into the most widely implemented physical and Data link layer protocol today. Most...

G.SHDSL, VDSL, and VDSL2. • G.SHDSL, VDSL, and VDSL2 • To provide more bandwidth to customers, telco providers kept pace by offering ever-faster xDSL variations (ADSL, HDSL, SDSL etc.). Suppliers have kept pace likewise, with technologies to g...

Energy-Efficient Ethernet • Energy-Efficient Ethernet • The IEEE 802.3az Ethernet standard, ratified in 2010, provides a standardized way for some Ethernet devices to reduce power consumption. Energy-Efficient Ethernet devices have a low-power...

Virtual LANs • Virtual LANs (VLANs) • True to their name, VLANs are literally “virtual“ LANs—mini subLANs that, once configured, can exist and function logically as single, secure network segments, even though they may be part of a much larger...

Cable management • Cable management • Corporate networks are complex systems of PCs, servers, printers, and the devices that connect them. Getting everything to work in harmony requires bundles of cables, and managing all those cables from ins...