User guide

AirCard 402 Modem - User Guide
42 2131145
FCC FederalCommunicationsCommission—TheU.S.federal
agencythatisresponsibleforinterstateand foreigncommuni‐
cations.TheFCCregulatescommercialandprivateradio
spectrummanagement,setsratesforcommunicationsservices,
determinesstandardsforequipment,andcontrolsbroadcast
licensing.Consult
www.fcc.gov.
firmware SoftwarestoredinROMorEEPROM;essentialprogramsthat
remainevenwhenthesystemisturnedoff.Firmwareiseasier
tochangethanhardwarebutmorepermanentthansoftware
storedondisk.
GPS GlobalPositioningSystem—Asystemthatusesaseriesof24
geosynchronoussatellitestoprov ide nav igationaldata.
host • A
computerthatusesamodemorasimilardeviceto
answeracallingcomputer.
• Asourceordestinationinthecommunicationnetwork.
• Acomputerthatcontainsdataorfilestobeaccessedby
clientcomputers.Alsoknownasaserver.
IS InterimStandard—Afterreceiv ingindustryconsensus,theTIA
forwardsthestandardto
ANSIforapproval.
IS-95 ThestandardforCDMA.
Kbps Kilobitspersecond—Actually1000,not1024,asusedin
computermemorysizemeasurementsofkilobytes.
LAN LocalAreaNetwork
LED LightEmittingDiode—Asemiconductordiodethatemits
visibleorinfraredlight.
MEID MobileEquipmentIdentifier—Theuniquesecond‐generation
serialnumberassignedtothemodemforcellular
networkuse.
ComparetoESN.
Mbps Megabitspersecond
MHz Mega‐Hertz—Onemillioncyclespersecond.
packet Ashortfixed‐lengthblockofdata,includingaheader,thatis
transmittedasaunitinacommunicationsnetwork.
PC Card™ Add‐inmemoryandcommunicationscardsforportable
computers.PC CardisatrademarkofthePCMCIA
.
PCMCIA PersonalComputerMemoryCardInternationalAssociation—
TheorganizationthatstandardizesExpressCardsand
PC Cards.
PCS PersonalCommunicationsServices—Acellular
communicationinfrastructurethatusesadifferentfrequency
rangethanAMPS.