Yaskawa SmartTrac Ethernet Card - Manual (Page 39)

SMART TRAC Ethernet Card
Technical Manual Smart Trac Ethernet Card Glossary of Terms
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Glossary of Terms
The seventh layer of the OSI networking model. This layer provides the
translation between an application program (which uses the network to move
data) and the network. When a program makes an API (Application Program
Interface) call, this layer determines the devices it must communicate with,
whether a communications session should be established between devices, and if
packet delivery must be guaranteed.
Acronym for Attachment Unit Interface. An AUI is a 15-pin connector, used to
connect a cable to a network interface card, that allows for the use of a
transceiver and is often used with a coaxial cable.
An intellignet device used to transmit data from one network segment or port to
another, according to a set of rules.
Acronym for Carrier Sense Multiple Access/Collision Detection. It is used to
manage collisions of data packets on the network. When a collision is detected,
it instructs each network card to stop transmitting, wait a random amount of
time, then listen for other data transmissions before proceeding to transmit data
frames.
The second layer of the OSI network model. This layer creates and interprets
frame types, and interprets the information received from the Physical Layer.
A Local Area Network (LAN) that serves more than one purpose, may network
devices physically separated by long distances, and may be connected to the
internet.
A connection device that receives a signal, then transmits it to the connected
devices.
The open network Ethernet standard, issued by the Institute of Electrical and
Electronics Engineers. The standard has sections to describe cable types, among
others.
Acronym for Light Emitting Diode.
The thrid layer of the OSI network model. It directs the flow of data from a
source to a destination through addressing and routing. It must do this in spite of
the fact that devices are not always on the same physical wire or segment.
Acornym for Network Interface Card. It is an adapter that transforms data into
signals for transfer across the transmission media to a destination device.
An embedded PC bus standard. The standard defines the mechanical size of a
self-stacking bus. Also an IEEE draft standard, called the P996.1 Standard for
Application Layer
AUI
Bridges
CSMA/CD
Data Link layer
enterprise-wide LAN
hub
IEEE 802.3
LED
Network Layer
NIC
PC/104 standard