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MDS 05-4055A01, Rev. A MDS entraNET 900 System Guide 133

DEFINITIONS OF TERMS

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If you are new to wireless IP/Ethernet systems, some of the terms used

in this guide may be unfamiliar. The following glossary explains many

of these terms and will prove helpful in understanding the operation of

the transceiver system.

Access Point (AP)—The transceiver in the network that provides syn-

chronization information to one or more connected Remote units.

Antenna System Gain—A figure, normally expressed in dB, repre-

senting the power increase resulting from the use of a gain-type antenna.

System losses (from the feedline and coaxial connectors, for example)

are subtracted from this figure to calculate the total antenna system gain.

AP—See Access Point

Associated—Condition in which the frequency hopping pattern of the

Remote is synchronized with the Access Point station in a network, is

recognized by the AP, and is ready to pass traffic.

Authorization Key—Alphanumeric string (code) that is used to enable

additional capabilities in a transceiver.

Bit—The smallest unit of digital data, often represented by a one or a

zero. Eight bits (plus start, stop, and parity bits) usually comprise a byte.

Bits-per-second—See BPS.

BPS—Bits-per-second (bps). A measure of the information transfer rate

of digital data across a communication channel.

Byte—A string of digital data usually made up of eight data bits and

start, stop and parity bits.

CSMA/CA—Carrier Sense Multiple Access/Collision Avoidance

CSMA/CD—Carrier Sense Multiple Access/Collision Detection

Data Circuit-terminating Equipment—See DCE.

Data Communications Equipment—See DCE.

Data Terminal Equipment—See DTE.

dBi—Decibels referenced to an “ideal” isotropic radiator in free space.

Frequently used to express antenna gain.

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Microwave Data Systems MDS entraNET 2400 Especificaciones Pagina 141