User's Manual

Powe r Sa ve
m ode
The s ta te in wh ich the ra dio is pe riodica lly powe re d
down to conse rve powe r. Wh e n the n ote book is in
Powe r Sa ve m ode , re ce ive pa cke ts a re store d in the
a cce s s poin t until th e wire le s s a da pter wa ke s up.
Pre fe rre d
ne twork
On e of the ne tworks tha t h a s be e n configure d. Such
ne tworks a re liste d u nde r Pre fe rre d ne tworks on the
Wire le s s Ne tworks ta b of the Wire le ss Configura tion
Utility (Windows 2000 en vironm e nt) or Wire le s s
Ne twork Conne ction Prope rtie s (Windows XP
e nvironm e nt).
RADIUS Re m ote Authe ntica tion Dia l-In Us e r Se rvice (RADIUS)
is a n a uthen tica tion a n d a ccountin g syste m tha t
ve rifie s u s e rs cre de ntia ls a nd gra nts a cce s s to
re que s te d re source s.
RF Ra dio Fre que ncy. The inte rna tion a l unit for m e a suring
fre que n cy is Hertz (Hz), which is e quiva le nt to the
olde r u n it of cycle s pe r se cond. On e Me ga -He rtz
(MHz) is on e m illion He rtz. One Giga -He rtz (GHz) is
one billion He rtz. For re fe re nce : the s ta nda rd US
e le ctrica l powe r fre que n cy is 6 0 Hz, the AM broa dca s t
ra dio fre que n cy ba nd is 0.55 -1.6 MHz, the FM
broa dca st ra dio fre que n cy ba nd is 88 -10 8 MHz, a nd
m icrowa ve ove ns typica lly ope ra te a t 2 .45 GHz.
Roa m ing Move m e nt of a wire le s s n ode be twe e n two m icro ce lls.
Roa m ing usua lly occu rs in infra s tru ctu re n e tworks
built a rou n d m u ltiple a cce ss points .
RTS thre s h old The n u m be r of fra m e s in the da ta pa cke t a t or a bove
which a n RTS/ CTS (re que s t to se n d/ clea r to s e n d)
ha n dsha ke is tu rne d on be fore the pa cke t is s e nt. Th e
de fa ult va lue is 2 34 7 .
Sha re d Ke y
An e ncryption ke y kn own only to th e re ce ive r a nd
se nde r of da ta .
SIM Subscribe r Ide ntity Module ca rd is us e d to va lida te
cre de n tia ls with the ne twork. A S IM ca rd is a spe cia l
sm a rt ca rd tha t is use d by GSM-ba se d digita l ce llula r
ne tworks.