Enterasys RoamAbout 3000 Guide de l'utilisateur télécharger pdf (Page 134)

Model RF Obstacles

6-12 Using RF Planning

Model RF Obstacles

WhenplanningaEnterasysnetwork,youneedtoconsiderhowthebuildinglayoutandphysical

objectsaffectsignalloss.Walls,windows,anddoorsabsorbRFsignals,anddifferentbuilding

materialshavedifferentattenuationfactors.

YoucanmodelanRFobstacleonyourfloorplanandassigntheobstacletypeandattenuation



factor,oryoucanassignanobstacletypeandattenuationfactortoobjectsinaDWGorDXF

drawing.RASMusesthesevalueswhencalculatingcoverageforthenetwork.

Ifyoudonothaveanimporteddrawing,orifyouareworkingwithaGIForJPEGimage,you

mustcreate

RFobstaclesmanually.IfyouareusinganimportedCADdrawing,youcanconvert

manyoftheobjectsinthedrawingintoRFobstacles.Allobjectssimilarinconstructionmaterial

shouldbeplacedinonelayer.Forexample,ifthedrawingfilehaswallsspreadoutindifferent

layers,but

afterperformingasite‐survey,theywallswerefoundtobesimilarinmaterial

construction,itisbettertoputtheminonelayer.Inthisway,theRFattenuationassignmentcanbe 

performedinonestep.

ThissectionshowshowtoselectanddrawobjectsandconvertthemintoRF

obstacles.RASM

preservesthelayersdefinedinaCADdrawing.

Table 6‐1providessomecommonAutoCADlayerterminology.

TocreateRFobstaclesforallobjectsinalayer:

1. ClickLayersintheOrganizerpaneltobringupalistofthelayersinthedrawing.

2. Right‐click(Macintosh:Control+click)oneof

thelayersintheOrganizerpanel.

3. SelectCreateRFObstaclesunderCreateintheTaskpanel.TheCreateRFObstacledialogbox

appears.

Table 6-1 Common AutoCAD Layer Terminology

AutoCAD Layer Name Commonly Represents...

glaz windows

scol steel columns

p-fixt bathroom

p-part bathroom stall partitions

ext

int

exterior

interior

1 2 ... 129 130 131 132 133 134 135 136 137 138 139 ... 213 214

Pas de commentaire

Enterasys RoamAbout 3000 Guide de l'utilisateur Page 134