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Ethernet Basics
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From B&B Electronics Manufacturing Co. Inc.
10BASE5-Thick Ethernet or Thicknet-is the original Institute of Electronic and Electrical Engineers (IEEE) 802.3 Ethernet. 10BASE2-Thin Ethernet, Thinnet, or Cheapernet-resembles 10BASE5, was introduced to reduce the cost and complexity of installation, and became very popular for replacing Thick Ethernet as an office-cabling solution. 10BASE-T, a completely new physical layer, is IEEE 802.3i and uses two pairs of unshielded twisted-pair (UTP) telephone-type cable: one to transmit; the other to receive. 10BASE-F refers to three different fiber-optic specifications: ???10BASE-FL (Fiber Link) replaces the 1987 Fiber Optic Inter-Repeater Link (FOIRL) specification and is backward compatible with existing FOIRL devices. It is the most popular 10-Mbps fiber standard. ???10BASE-FP and 10BASE-FB are dead. P means passive; B means backbone. Products & Services
Network servers control and manage network resources such as files, printers, users, groups, etc.
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Network routers are protocol-dependent devices that connect subnetworks. They are also used to break down a large network into smaller subnetworks.
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Network transceivers, short for transmitter-receiver, are devices that both transmit and receive analog or digital signals.
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Network gateways interconnect networks with different, incompatible communication protocols.
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Network cable assemblies are used in the transmission of data across networks. Choices include Fibre Channel, FireWire or IEEE 1394, GPIB, serial, parallel, patch, SCSI, Ethernet and USB.
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Topics of Interest
Overview
This appendix contains definitions of some of the most commonly used networking terms. There is no limit as to what could be included here, and indeed any attempt to cover every possible...
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Glossary
Numbers
1Base5.
1Base5 is the implementation of 1Mbit/sec StarLAN, which is wired in a star topology.
10Base2.
10Base2 is the implementation of the IEEE 802.3 Ethernet...
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Overview
Within the Ethernet/IEEE 802.3 standards, there exist several variants based upon Fiber Optic media. We have already briefly touched upon the most common forms of the 10Mbps fiber optic...
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3.3 REVIEW OF DATA NEWORKS
The Local Area Network (LAN) is a standardized (IEEE 802.3 series) nonhierarchical,
low-cost multiple-access network. Switching is accomplished by store and forward...
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3.9 GIGABIT ETHERNET
The Gigabit Ethernet (1000BASE-x), or GbE for short, is the natural evolution of
two older standards, the 100 Mbit Ethernet (100BASE-x) and the 10 Mbit Ethernet...
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