Manuale d’uso / di manutenzione del prodotto 3CRWE41196 del fabbricante 3Com
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http://www.3com.com/ Part No. DUA4119-6AAA01 Published Mar ch 2003 Of ficeConnect ® 11Mbps W ir eless Access Point User Guide 3CRWE411 96.
3Com Corporati on 5500 Great America Parkway Santa Clara, Californ ia 95052-8145 Copyright © 2003, 3Com Corporation. All rights r eserved. No part of this documentatio n may be reproduced in any form.
C O NTENTS A BOUT T HI S G UIDE Naming Convention 7 Conventions 8 Feedback about this User Guide 8 Related Documenta tion 9 Produc t Registration 9 1 I NTRODUCING THE A CCESS P OI NT OfficeConnect 11M.
4 A CCESS P OINT C ONFI GURAT ION Navigating Thr ough the Access Point Configuration Pages 31 Main Menu 31 Option T abs 31 W elcome Scre en 32 Notice Board 32 Password 33 Wiz ar d 33 LAN Settings 34 U.
A U SING D ISC O VE RY Running the Discovery Application 59 Windows Installation (95/98/2000/Me/NT) 59 B IP A DDR ES SI NG The Intern et Protocol Suite 61 Managing th e Access Point over th e Network .
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A BOUT T HI S G UI DE This guide de scr ibes how to ins tal l an d confi gure the Offi ceConnect 11Mbps Wi reles s Ac cess Poi nt ( 3CRWE41196). This guide i s i nten ded for use by t hose respon sibl.
8 A BOU T T HI S G UI DE Conventi ons Ta b l e 1 and Ta b l e 2 li st convent ions that are used t hroughout thi s gui de. Feedback about this Use r Gu id e Y ou r sug ges tion s ar e ve ry im por tan t to us. T he y w ill he lp m ake ou r documentat ion more useful to y ou.
Conventions 9 Exam ple: ■ Of ficeConn ect 11M bps Wireless A ccess Point U ser Guide ■ Part Number DUA4119- 6AAA01 ■ Page 24 Do not use thi s e-mai l ad dress for t echni cal suppor t ques ti ons. For informa tion about co ntacting T echnical Sup port, please refer to th e Supp ort and Sa fety Information she et.
10 A BOU T T HI S G UI DE.
1 I NTR ODUCI NG THE A CCESS P OI NT W el come to the worl d of net worki ng with 3Com ® . In th e m ode rn busi ness envi ronment, communica ti on and shar in g inf ormati on is cru cia l.
12 C HA PTER 1: I NTRODUCI NG THE A CCESS P OI N T OfficeConnec t 11Mbps W irel ess Access P oint The Offi ceConnect 11Mbps Wi reles s Acces s Poi nt i s des ign ed to provi de a cost -effe cti ve means of c onnecti ng wi red and wi reles s net works.
Access Point Advantages 13 Access P oint Advantages The advanta ges of t he Acces s Poi nt i nclude: ■ Cr oss -pla tfor m ope rati on for c om patib ility w ith Wi ndows, Unix a nd M acintosh comput.
14 C HA PTER 1: I NTRODUCI NG THE A CCESS P OI N T Mi ni mu m Sy s t e m and Component Requirements Y our Access Point req uires that the com puter(s) and comp onents in your networ k be confi gured w.
Front Panel 15 Fl ashi ng sl owl y - The A ccess Point has comp leted the Reset t o Fa ctor y Defau lts proces s, and is waiti ng f or you t o releas e the reset butt on. T he Ac ce ss Po int w ill then ent er th e sta rt-up seq ue nce an d r esu m e no rm al opera ti on.
16 C HA PTER 1: I NTRODUCI NG THE A CCESS P OI N T Rear Panel The rear panel ( Fi gur e 3 ) of the A ccess Point contains one LAN p ort, a re set button, a n M DI/X switch a nd a po wer ad apter socket.
2 H AR DWAR E I NS TALLA TI ON Int roducti on This chapte r wil l gui de you t hrough a basi c i nst all ati on of t he Acces s Poin t, incl udi ng: ■ Connect ing t he Acces s Poi nt t o your network. ■ Setting up your com puters fo r networking with the A ccess Point.
18 C HA PTER 2: H ARDW AR E I NS TAL LAT I ON When posit io ning your Acces s Poi nt, ensure: ■ It is out of di rect sunl ight and away from sources of heat . ■ Ca bling is aw ay fr om pow er line s, fluo res cen t light ing fix tur es, a nd sources of ele ctr ica l noi se s uch as ra dios , t rans mitt ers and broadband am plifie rs.
Powering Up the Access Point 19 Powering Up the Access P oint T o power up th e Access Poi nt: 1 Plug the pow er adapte r i nto th e pow er adapter so cket located o n the back panel of the Access Point. 2 Plug t he power adapt er i nto a standa rd elect ri cal wall socket .
20 C HA PTER 2: H ARDW AR E I NS TAL LAT I ON.
3 R UNNI NG THE S ETUP W IZ A R D Accessing the Wi z a r d 3C om re com me nds th at yo u pe rfo rm the in itial Ac ces s Po int confi gur ati on from a computer t hat i s di rect ly c onnecte d to one of the LAN port s and not from a wirele ss con necti on.
22 C HA PTER 3: R UNNI NG THE S ETUP W IZ AR D Figure 5 Discover y W el come Screen 3 W hen the We l c o m e scr ee n is d isp laye d, se lect th e N IC fr om wh ich th e Ac cess P oin t w ill be d isco ve re d. Th en clic k o n Next and wait unt il the appl ica ti on dis cover s the Ac cess Point s connec ted t o your L AN.
Accessing the Wizard 23 Figure 7 Discover y Fini sh Screen 5 Cli ck on Fi nish to launch a we b brow ser and displ ay the login page for the A ccess Point as sh own in Fi gure 8 . 6 T o log in, en ter the passw ord (th e default setting is admin ) in the System Passw ord fiel d and cl ic k Log i n ( Fi gure 8 ).
24 C HA PTER 3: R UNNI NG THE S ETUP W IZ AR D 7 If the passwor d is correct, the C ountry Selection scr een appe ars. Select the cou ntry you w i sh to co nfigure the Acce ss Point for , then click Appl y . ( Figure 9 ). Th is sc ree n is o nly d ispla yed on i nitia l con figur atio n o f th e A cce ss P oin t.
Accessing the Wizard 25 Figure 10 W el come Screen Figure 11 Wizard Screen.
26 C HA PTER 3: R UNNI NG THE S ETUP W IZ AR D Passw ord Figure 12 C hange Admini str ati on Pass wor d Screen W hen the Change Adm ini stration Passw ord screen ( Fi gure 12 ) a ppears , type the O ld Password , t hen a new pass word in bot h the New Password and Conf ir m Password box es.
Accessing the Wizard 27 This screen det ermin es how the Acc ess P oint obtai ns i ts IP a ddress. There are three opt ions . O bta in IP A dd r ess aut om atica lly - Th e Ac ces s Po int w ill obt ain a n IP address from a DHCP server already opera ti ng on your network.
28 C HA PTER 3: R UNNI NG THE S ETUP W IZ AR D Figure 15 DHC P Server Setup Screen This scre en displays a suggested LAN IP add ress and sub net m ask of the Access Poi nt. It als o all ows you t o change t he IP ad dress and s ubnet mas k. T wo further fields are av ailable for you to e nter the Start address of an address pool and an End address.
Accessing the Wizard 29 W ire less Set tin gs Fi gure 16 Wireles s Confi gurat ion Screen This s creen displ ays the c urrent Channel and Ser v ic e Area Name . It als o allows you to cha nge these settings. There are a m aximum of 13 channels, the num ber avail able to you is dependent on the country you r esi de in.
30 C HA PTER 3: R UNNI NG THE S ETUP W IZ AR D Summ ary Fi gure 17 Configura ti on Summ ary Screen When you com pl ete t he Setup W izard, a confi gurat ion s umm ary wil l dis pla y . V eri f y the c onfi gura ti on inf ormat ion of the Access Poi nt and t hen click Finish to sa ve your sett ings .
4 A CCESS P OI NT C ONFI GURAT I ON Navigati ng Through the Access Point Confi gurati on Pages This ch apter describes a ll the scr eens available thr ough the Acc ess Point confi gur ati on pages , and i s provi ded as a reference.
32 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON Get t in g Hel p On every screen, a Hel p but ton i s avai l able whi ch provi des acce ss t o the context-sen siti ve online help system . Click Help for further assistance and guid ance rel ati ng t o the cur rent sc reen.
Welcome Screen 33 Passw ord Figure 20 Passwor d Screen Changing the Admini strat ion Pass wor d Y ou c an change th e pass wor d to prevent unaut hori zed a ccess to t he Adm ini stration System .
34 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON LAN Sett ings The LAN Set ti ngs menu provi des the fo ll owing opt ions : Unit Conf igur ation The LAN Set ti ngs screen i s used to deter mine how the LAN IP address of your Access Poin t i s obt aine d.
LAN Settings 35 Manually set ting t he IP address 3Co m reco mm ends th at you assign your Acce ss Point a static IP add ress. 1 Sel ect U nit C onfig uratio n and t hen sel ect Stati c I P Address ( to be sp ecifi ed m an ually ) . The scree n shown i n Figure 23 is dis pla yed .
36 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON Figure 24 DHC P Server Confi gurati on Screen 3 Cli cki ng Auto Ran ge auto matically selects the largest ra nge of ad dresses avai la ble f or your net work. Al ter n ati vel y you c an manuall y ent er Start and End addresses for the I P address po ol.
Wireless Settings 37 The DHCP Cl ient s L is t provi des d etai l s on t he dev ices that are conn ecte d to th e LAN. The l is t i s only c reated when the Acc ess Poi nt i s s et up as a DHCP ser ver . For each de vic e that i s connect ed t o the L AN, th e IP a ddress, Host Name, MAC address and Cl ie nt T ype of tha t devi ce is dis play ed.
38 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON Configur ati on Figure 26 Configur ati on Screen Enable Wireless Networking Al low s yo u to ena ble /dis able the wir eless sect ion of yo ur L AN . W hen disabled, no w i reless PC s can ga in access to your Wire d or Wireless LAN through t hi s Acc ess Point .
Wireless Settings 39 Servi ce Area Nam e/SS ID Th is allo ws you to n am e you r Wir ele ss ne two rk. T he fie ld will a cce pt a ny alph anumeric str ing and has a maxi mum l ength of 32 char acter s. Y our Wi reles s computer s must be c onfi gured with ex actl y t he same name or you wil l no t est abl is h a connect ion.
40 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON Encrypt ion Fi gure 27 Encrypti on Screen Wired Equi val ent P riv acy or WEP all ows you to encry pt the tra ffic between y our Wi rele ss PC and t he Acces s Poi nt. It is import ant t o remem ber t hat wi th WEP disa bled anyone with a Wi rele ss PC can eaves drop on your ne twork.
Wireless Settings 41 Encrypt ion Keys Figure 28 Encrypt ion Keys Screen A K ey is a hex adecima l (0-9, A-F) num ber used to en crypt and decrypt the data. There ca n be up t o 4 keys and eac h key ca n be as l ong as 26 di git s. The Acces s Poi nt al so offer s a number of methods for conver ti ng plai n text into hex keys.
42 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON WEP and 13 charact ers for 128 bit W EP . Y ou must ent er a sepa rat e string for each of the 4 K eys. Y ou can leav e a string blank pr ovided thi s Key i s not sel ect ed as th e Acti ve T ransmit Key .
Wireless Settings 43 Figure 29 Connection Cont rol Screen A highe r l evel of se curi ty c an be achi eved for yo ur wirel ess n etwork i f you use bot h encr ypt ion and y ou spec if y onl y cer tai n wirel es s computer s c an connec t to t he Access Poin t.
44 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON T o cr eate a list of Wireless com puters that can access the A ccess Point: 1 Pr ess Ne w . The screen shown in Figure 30 opens. 2 Select on e or m ore M AC ad dresses o f the Wireless PC s that you want to allow to connect to the Acce ss Point.
Wireless Settings 45 Once an entr y has been delet ed i t cannot be undone. Pl ease wait 30 second s for chang es to take e ffect. Cli ent Li st Figure 32 Clie nt List Screen The Wi reles s Cl ie nt Li st provides deta il s on t he devi ces t hat are connect ed to the Wire less LAN.
46 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON Pr ofile Figure 33 Profile Screen Some 3Com Wirel ess Net work Adapt ers all ow you to import Wi reles s confi gur ati ons v ia a ‘ profi le’ . The Access Poin t can gener ate a profil e so that you do not nee d to conf igure your Wi reless PCs manuall y .
Wireless Settings 47 Saving a Profi le T o set up a pr ofil e (once the Service Are a Nam e/SSID and Encryp tion set ti ngs hav e been conf igured i n the Acc ess P oint ): 1 Enter a Pr ofile Name (up to 25 alphanum eric characters) and then click Save Prof il e .
48 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON System T ools The m ain frame of the System T ools scre en includes thr ee adm i nistration ite ms : Rest art , Conf igur ati on, and Upg ra de ( Fi gure 34 ).
System Tools 49 Sel ect the Confi gurat i on tab to d isplay the Confi gurat io n screen ( Figure 35 ). Backup Confi gurat ion Cli ck BACKUP to sav e the cur rent Ac cess Poi nt confi gur ati on. Y ou wil l be prom pted t o dow nload and save a fi le t o disk.
50 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON suppor t web si te t o a fol der on your computer . Once you have done t his , select Brow se to t ell your web browser where this fi le is on your computer , and then c li ck Appl y .
Status and Logs 51 Stat us and Logs Figure 37 Status and Logs Screen Se lect ing Stat us and Logs fro m th e m ain m enu dis pla ys th e Status and Logs screens ( Figur e 37 ) i n your W eb browser window . T he Status scr een dis pla ys a tabul ar representat ion of y our net work and Int er net connec ti on.
52 C HA PTER 4: A CC ESS P OI NT C ONF I GUR ATI ON Status St atus displ ays t he current uni t st atus, inc ludi ng a summary of the confi gur ati on Logs Logs wi ll all ow you to vi ew the eve nts l.
5 T R OUBL E SHOOT I NG Basi c Connect ion Checks ■ Check th at the Acc ess Point is connect ed to your swit ch or hub an d that all the equ ipment is po wer ed on. C heck that the LAN p ort link sta tus LED on th e A cces s Po int a re illu min ate d, an d th at an y corres pondi ng LEDs are al s o il lumi nate d.
54 C HA PTER 5: T RO UBLESH OO TI NG Forgot ten Pas sword and Reset t o Fact ory Defaul ts If you c an browse to t he Acc ess Po int conf igur ati on sc reen but ca nnot l og on becaus e you d o not know or have for gotte n the pa ssword, fol low t he ste ps bel ow to reset the Access Poi nt t o it ’ s f act ory de faul t c onfi gura ti on.
Wireless Networking 55 ■ Ensure that the Wi reless Cli ents are using t he same SSI D or Servi ce Area Name as the Acces s Poi nt. The SSI D is cas e-s ensit i ve ■ Ensure that you are usi ng t he.
56 C HA PTER 5: T RO UBLESH OO TI NG Ac ce ss Po int. In an idea l net wo rk th e A cce ss Po int sh ould b e loc ate d in the ce ntre of the ne twork with W irel ess computer s di st ri buted around it . Appli cat ions are gener al ly avai la ble wi th the comput er wir eless card to carry out a site survey .
Frequently Asked Questions 57 ■ IP ad dress: 192.168. 1. 2 ■ Subnet mask: 255. 255. 255.0 ■ Defaul t Gateway a ddress: 192. 168. 1.1 3 Restart the com puter , and re -apply po wer to th e Access P oint. 4 Usin g the W eb browser on the c omputer , ent er t he fol lowi ng URL i n the loc atio n b ar: http://192.
58 C HA PTER 5: T RO UBLESH OO TI NG There is a si ngle LAN port s on the Ac cess Point. How are additi onal computers connec ted? Y ou ca n expand the n umber of c onnect ions avai l able on your LAN by usi ng hubs, swit ches and wireles s acc ess poi nts connect ed to the A ccess Point.
A U SI NG D ISC O V ER Y Running t he Discove ry Appli cat ion 3Com provides a user f ri endl y Dis cover y appl ic ati on for detec ti ng the Acces s Poi nt on the ne twork. If you are unable to u se the Discover y application, the Access P oint on init ial p ow er -up will a ttem pt to ob tain a n IP ad dre ss fro m yo ur lo cal D HCP ser v er .
60 A PPEND I X A: U SING D IS C O V ER Y 2 W hen the We l c o m e scr ee n is d isp laye d, se lect th e N IC fr om wh ich th e Ac cess P oin t w ill be d isco ve re d. Th en clic k o n Next and wait unt il the appl ica ti on dis cover s the Ac cess Point s connec ted t o your L AN.
B IP A DD R ESSI NG The Inter net Protocol Suit e The I nter net protocol sui t e consi st s of a wel l -def ined s et of communicat ion s protoco ls a nd seve ral sta ndard appl ica ti on protocol s.
62 A PPEND I X B: I P A DD RESSI NG For you r network to work co rrectly , all devices o n the netw ork m ust have: ■ The same sub-net work address. ■ The sa me sub net m ask. Th e o nly v alu e th at w ill be d ifferen t is the spec ific h ost dev ice num ber .
How does a Device Obtain an IP Address and Subnet Mask? 63 This type of I P Address oper ates on a subnet mask of ‘ 255.25 5.0. 0’. See Ta b l e 4 for an exampl e about how a network (o nly four c omputers represente d) and a Ac cess Poi nt might be c onfi gured.
64 A PPEND I X B: I P A DD RESSI NG an I P address at r andom from the indus tr y st andard subne t of 169.2 54.x. x ( wit h a s ubnet mask of 2 55.255. 0.0 ). If t wo devic es al l ocat e themsel ves the same addres s, t he conf li ct is detect ed and one of the devi ces a ll ocates it sel f a new addres s.
C T ECHNI CAL S PECI FI CATIONS This sect i on li st s t he tec hnic al speci fi cat ions for the Offi ceConnect 11M bps Wireless A ccess Point. 11Mbps W irel ess Access P oint Interface s LAN connect ion - 10Mbps/100Mbps dua l sp eed Ether n et por t (10BAS E-T/ 100BASE- TX) W LAN Interface Standard I EEE 802.
66 A PPEND I X C: T ECHNI CAL S PE CIF IC A TIO NS Dimensions ■ Wi dth = 220 mm (8.7 in. ) ■ Depth = 135 mm (5.3 in. ) ■ Height = 24 mm (1 in. ) We i g h t Approximat ely 592 g (1. 3 lbs ) Standards Funct iona l: ISO 88 02/3 IEE E 802.3 IEE E 802.
67 ■ Wi ndows XP ■ Mac OS 8.5 or hi gher ■ Unix Ethe r net Perfo rman ce T he A cce ss Po int co mp lies t o th e IE EE 80 2.3 i, u a nd x sp ec ifica tion s. W ireless Pe rform ance The Acc ess P oint compli es wit h the I EEE 802. 11b spec if ic ati on and conform s to the WiFi interop erability test standar d.
68 A PPEND I X C: T ECHNI CAL S PE CIF IC A TIO NS.
D S AFETY I NF ORMATI ON Import ant Saf ety Info rm atio n WA R N I N G : W arnings contain directions that you must fo l low for yo ur pers onal saf ety .
70 A PPEND I X D: S AFE TY I NF OR MATI ON WA R N I N G : Disconn ect the pow er adap ter before m oving the u nit. W ARN ING: RJ-4 5 ports. These are s hie lded RJ- 45 data s ocket s. They cannot be used as tel ephone socket s. Onl y conn ect RJ -45 dat a connec tors to t hese soc kets .
71 VORSICHT : Es si nd kei ne von dem Benutze r zu er setz ende oder zu warte nde T ei l e i n dem Gerät v orhanden. W enn Si e ei n Probl em mit dem Access Poi nt haben, da s ni cht mit tel s der Fehl eran alys e in di es er Anlei tu ng behoben werden ka nn, s etze n Sie s ich mit I hrem Li efer anten in V e rbi ndung.
72 A PPEND I X D: S AFE TY I NF OR MATI ON A VERTISSEMENT : L ’a pparei l fonct ionn e à une tens ion extr êmement bass e de séc uri té qui est confor me à la nor me CEI 950. Ces condi ti ons ne sont mainte nues que s i l 'équi pement auquel i l est r acco rdé fonct io nne dans l es mêm es condi ti ons.
E E ND U SER S OFT WAR E L ICE N C E A GR E EMENT 3Com Corporat ion END USER SOF TW ARE LICENSE AGREEMENT YOU SHOULD CAREFULLY READ THE F OLLOWING TERMS AND CONDI TIONS BEFORE DOWNLOADI NG, INSTALLING AND USING THIS PRODUCT, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION ("3COM") TO ITS CU STOMERS FOR THEIR USE ONLY AS SET FORTH BELOW.
74 A PPEND I X E: E ND U SER S OFT WARE L I CE NCE A GREEM ENT and developed solely at private expense. The Software is deliver ed as "Commercial Computer Softw are" as defined in DFARS 252.22 7-7014 (June 1995) or as a commercial item as defin ed in FAR 2.
G LO SSARY 802.1 1b The IEE E sta ndard to whic h the 3Com OfficeConne ct 11Mpbs Wi rel ess Acces s Poi nt c onfor ms. T his st andard provi des f or 1, 2,5 .5 and 11 Mbps data r ates and a set of f undamental si gnal ing methods and other ser vi ces (se e W EC A).
76 G LOSSA RY 802.3 s tandard f or Ether n et and i s an oper ati on th at tak es pl ace i n a fe w m illisec ond s. Bandwidth The i nformati on capaci ty , measured in bi ts per sec ond, that a channel ca n tra nsmit . The bandwidt h of Et her net is 10 M bps , th e bandwidt h of F ast Ether net i s 100 Mbps.
G LOS SARY 77 your I nt er net browser ), the user i s sent to th e proper IP address. The DNS ser ver ad dress used by the computer s on you r home network i s t he location of the DNS se rver your ISP has assigned. Encrypt ion A method for provi di ng a le vel of sec uri ty t o wirel ess data t rans missi ons .
78 G LOSSA RY IETF I nte r net Engi neer ing T as k Force. An organi zati on respons ibl e for providi ng engi nee ri ng sol uti ons f or TCP/ IP network s. I n the network management area, thi s group i s responsi bl e for the dev elop ment of t he SNMP protocol .
G LOS SARY 79 Network A Netw ork is a collection of computers and other co mputer equipm ent that are connect ed for the purpos e of exc hangi ng inf ormati on or shar ing re source s. Network s vary in size, some are w ithin a single ro om, othe rs span con ti nents.
80 G LOSSA RY TCP/IP T r ansmi ssi on Cont rol Protoc ol/ Int er net Protocol . Th is is t he name for two of th e most well -k nown protocol s dev elop ed for the i nterconn ecti on of networ ks. Origi nal l y a UNIX s tandard, TCP/I P i s now suppo rte d on al most all platforms, and is the protocol of the I nternet.
I NDEX A Access 13 Addresses IP 61 Administration Password 26, 33 Automatic Addressing 63 C Cable Specifications 67 Channels 83 Configuration backup 49 res t ore 4 9 Conventions notice icons, About Th.
82 I NDE X U Unit Configuration 34 Upgrade 49 W Wir el es s authorised PCs 43 channel selection 38 client list 45 configuration 38 connection control 42 encryption 40 LED 15 networking 54 NIC 14 servi.
R EGUL AT ORY N OT I C ES FOR THE 11MBPS W IR EL E SS A CCESS P OI NT Channels Us e of th e 11Mbps Wirel ess Acces s Poi nt i s onl y auth ori zed f or the channel s approve d by each count ry . For proper i nstal l ati on, l ogi n to t he management i nter face an d sel ect y our coun try from the drop down li st .
84 Info rm atio n to the Use r If thi s equi pment do es caus e i nter ference to ra dio o r te lev is ion rec epti on, which can be deter mined by t ur ning the equi pment off and on, the us er is encou raged to try to correct th e interferen ce by on e or m ore of the following m easures: ■ Reori ent the recei vi ng ant enna.
85 Expos ure to Radi o Frequency Radi ati on: The radi ate d output power of t he 3Co m Of ficeConnect 11M bps Wi reless Access Po i nt is far below the FCC radi o frequenc y expos ure li mits.
86 RF Exposure Complianc e Stat ement (U.S. ) CAUT ION : The 3Com Offi ceConnec t 11Mbps Wir el ess Acc ess Point has been cer ti fi ed a s a mobi le computing d evi ce as per F CC Sect ion 2 .
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3Com Corpor ati on, Cor porate Headquar ter s, 5500 Great America Parkway , Sant a Clar a, CA 95052-8145, USA. T o l ear n more about 3Com produc ts and s ervi ces, vi si t our World Wi de W eb s it e at www.3 c om. c om All speci fi cati ons a re subjec t to c hange without noti ce.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il 3Com 3CRWE41196 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del 3Com 3CRWE41196 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com 3CRWE41196 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com 3CRWE41196 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com 3CRWE41196, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del 3Com 3CRWE41196.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il 3Com 3CRWE41196. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com 3CRWE41196 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
