D-Link DWC-1000 User Manual page 71

Wireless Controller
User Manual
10 p er s eco n d ). Th e Beaco n In t erv al v alu e is s et in millis eco n d s . En t er a
v alu e fro m 20 t o 2000.
Automati c Channel : Th e ch an n el d efin es t h e p ort io n o f t h e rad io s p ect ru m
t h at t h e rad io u ses fo r t ran smit t in g an d receivin g. Th e ran ge o f ch ann els an d
t h e d efau lt ch annel are d et ermin ed b y t h e M o de o f t h e rad io in t erface. W hen
t h e A P b o o t s, each A P rad io s can s t h e RF area fo r o ccu p ied ch an n els an d
s elect s a ch an n el fro m t h e av ailab le n o n -in t erferin g o r clear ch an n els .
Ho wev er, ch an n el co n d it io n s can ch an g e d u rin g o p erat io n . En ab lin g t h e
A u t o mat ic Ch an nel makes t h e rad io o f A Ps as s ig n ed t o t h is p ro file elig ib le
fo r au t o -ch an n el s elect io n . Yo u can au t o mat ically o r man u ally ru n t h e
au t o ch ann el s electio n alg o rit hm t o allo w t h e DW C-1000 co n t ro ller t o ad ju s t
t h e ch an n el o n A Ps as W LA N co n d it io n s ch an g e.
Automati c Power : Th e p o wer lev el affect s h o w far an A P b ro ad casts it s RF
s ig n al. If t h e p o wer lev el is t o o lo w, wireles s clien t s will n o t d et ect t h e
s ig n al o r exp erien ce p o o r W LA N p erfo rman ce. If t h e p o wer lev el is t o o
h ig h , t h e RF s ig n al mig h t in t erfere wit h o t h er A Ps wit h in ran g e. A u t o mat ic
p o wer u s es a p ro p rietary alg orit hm t o au t o mat ically ad ju s t t h e RF s ig n al t o
b ro ad cas t far en o u g h t o rea ch wireles s clien t s , b u t n o t s o far t h at it
in t erferes wit h RF s ig n als b ro ad cas t b y o t h er A Ps . Th e p o wer lev el
alg o rit h m in creas es o r d ecreas es t h e p o wer lev el in 10% in cremen t s b as ed
o n p res en ce o r ab s en ce o f p acket ret ran s mis s io n erro rs .
Ini ti al Power : Th e au t o mat ic p o wer alg o rit h m will n o t red u ce t h e p o wer
b elo w t h e n u mb er y o u s et in t h e in it ial p o wer field . By d efau lt , t h e p o wer
lev el is 100%. Th erefo re, ev en if y o u en able t h e au t omat ic p o wer, t h e p o wer
o f t h e RF s ig n al will n o t d ecreas e. Th e p o wer lev e l is a p ercen t ag e o f t h e
maximu m t ran s mis s io n p o wer fo r t h e RF s ig n al.
APS D Mode : Select En ab le t o en ab le A u t o mat ic Po wer Sav e Deliv ery
(A PSD), wh ich is a p o wer man ag emen t met h o d . A PSD is reco mmen d ed if
Vo IP p h o n es acces s t h e n et wo rk t h ro u g h t h e A P.
RF S can Interval : Th is field co n t ro ls t h e len g t h o f t ime b et ween ch an n el
ch an g es d u rin g t h e RF Scan .
Long Retri es Th e v alu e in t h is field in d icat es t h e maximu m n u mb er o f
t ran s mis sio n at t emp t s o n frame s izes g reat er t h an t h e RTS Th res h o ld . Th e
ran g e is 1-255.
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