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Of ficeConnect ® Ethe r ne t Hu b 4, 4C, 8, 8 C User Guid e (3C1 670 4A, 3C 16 70 3A, 3C 16 700 A, 3C16 701 A) 3C 1670 0 .bo ok Pa ge i Tu es day , J uly 1 3, 19 99 9: 5 9 A M[...]

3Com Corporati on ■ 5 400 Bayfr ont Plaza ■ Santa Clara , Cal ifornia ■ 95052-8145 Copyri ght © 1 999, 3Com T ec hnolog i es. All righ ts reserv ed. No part of this doc umenta tion ma y be reproduced in any form or by any me ans or used to make any derivati ve work (such a s transl ation, tran sfor mation, or adapta tion) without written per[...]

3 Intr odu ction 5 Crea ting your Networ k 6 What Els e Do I Need? 6 Wor kstati on Connections 6 T ran sceiv er Connect ions 6 Hub Connect i ons 7 10BASE- 2 7 10BASE- T 7 T w i st ed Pa ir (TP ) Ca bl es 7 Stack i n g the Units T ogether 8 The Ru bber F eet 8 The Stac king Cli p 8 Posi tioni ng Y our Hub 9 Secur i ng Y our Hub 9 Using Y our Hub 9 T[...]

4 Consign es i mpor tantes de séc urité 29 T e chnical Suppor t 30 Onli ne T echni cal Ser vices 30 Wo rld W ide We b Site 30 3Com Knowl edgebas e Web Service s 30 Suppor t fro m Y our Network Suppl ier 31 Suppor t fro m 3Com 31 Returni ng Pro ducts for Repa ir 34 3Com Corp oration Limit ed W arranty 35 Elect rom agnetic Compa tibilit y 38 3C 167[...]

5 I NTRODUCTI O N Welcome to the world of networking w ith 3Com ® . In the modern business env ir onment, com munication and shar ing information i s crucial. Comput er networks have pr ov ed t o be one of the fast est modes of communica tion but, until re cently , only lar ge busine sses could affor d the advantage of networking . The O ffic eCon[...]

6 C RE A T I N G YOUR N ETWO RK What Els e Do I N eed? Y our OfficeConnec t hub comes w ith: ■ One power adapter for us e with the Of ficeConne ct hub. ■ A Pr oduc t Reg istration card f or you t o fill out and r eturn. ■ Four rubber feet. ■ A st acki ng cl ip. ■ T wo unit labels and eight ca ble tie s. ■ An Of ficeConne ct Network As s[...]

7 Hu b Co nn ect ions Depending on what ports your hub has , you can use either 10BASE-T or 10B A SE-2 to connect your hubs togethe r: ■ With 10BASE-2 you ca n connect up to 30 hubs on a single s egment, leaving a ll of the 10BA SE-T port s fr ee. ■ With 10BASE-T you c a n connect up t o f our hubs in serie s. 10BASE-2 T o connect addi tional h[...]

8 St acki ng the Un its T oge ther The Rub ber Fe et The f our self-a dhesive r ubber feet pr event your hub f r om moving ar ound on your des k. Only stic k the f eet t o the marke d ar eas at eac h cor ner of the unde rside of y our hub if you int end to place the unit di rectly on t op of the de sk. Do not fix the fee t if you are going to us e [...]

9 Po s i ti oni n g Y ou r H ub When installi ng y our Offi ceConnect hub, ens ure: ■ It is out of direct s unlight and away fr om source s of heat. ■ Cabling is away f rom power lines , fluor escent lig ht i ng fixtur es, and sour ces of el ectric al noise suc h as radios , transmit ters and br oadband ampl ifiers. ■ W ater or mois tur e can[...]

10 T HE O FF IC E C O NNECT E THE R NET H UB 4 AND 4C Et herne t Hub 4 an d 4C —F ro nt 12 3 4 Green=AUI off=COAX 1% 2% 3% 6% 12% 25% 50% 80% Port Status Netwo rk Utilizatio n Partitioned AUI/COAX Alert OfficeConnect Ethernet Hub 4C Green = OK, Y ellow = Partitio ned Power Collision Activity Alert LED orange Alerts you to excessive network use or[...]

11 Ether ne t Hub 4 and 4C— Rear Power Adapter socket Only use the power adapter that i s supplied with this OfficeConnect hub. Do not use any other adapter . 10BASE-2 port (Hub 4C only) Can be used to connect your hub to other OfficeConnect hubs and equipment with 10BASE-2 cabli ng. If used, it is effectively a fi fth port. Ref er to “Connecti[...]

12 Conne cting Workstat ions a nd Othe r Equip ment t o Y o ur Hub WAR NING: Please r ead the ‘Import ant Sa fety Information’ sect ion before you start. WARNHINWEIS: Bitt e les en Sie de n Abschnitt ‘Wichtige Siche rheitsinforma tionen’ sor gfältig durch, bevor Sie das Gerät einschal t en. A VERTISSEMENT : V euillez lir e attentiv ement [...]

13 Conn e ctin g Hu bs U si ng 10 BA SE- 2 Connect a 10BASE-2 ‘Y’ piece t o eac h of your hubs (Hub 4C only). Connec t the ‘Y’ pi ec es w ith 10BASE-2 cable to for m a singl e segment, a s shown in Figur e 4. Reme mber to term ina te the tw o free ends of the seg men t by fittin g terminators (end pi eces). T o disconnect a 10BA SE-2 cable,[...]

14 Conn e ctin g Hub s Us in g 10 BAS E-T Y ou can connect hubs together with 10BASE-T in a number of ways , but for s implicity w e r ecommend the foll ow ing method, as show n in Figure 5: 1 Start ing fr om the bottom, connect th e port 4 of t he lower hub t o port 3 of t he hub imme diately above. Repeat this f or each hub. 2 Set all Uplink/Norm[...]

15 P RO B L E M S OLV ING FOR TH E H UB 4 AND 4C The Of ficeConnect hub has been des igned to a id you when detecti ng and solv ing possible pr oblems with your network. These pr oblems ar e ra rel y serious , the cause is us ually a disconnect ed or damaged c able, or incorr ect configuration. If this section d oes not solve your problem, c ontact[...]

16 Port Status LED not lit for a 10BASE-T p ort that has a connection. There i s a pr oblem with t his conne ction. Check that you a re using a straight-thr ough 10BASE-T cable which is pr operly connected a t both ends , and i s not damaged. If the cable is connected to port 4, ensure that the Uplink/ Normal switch is set to Normal (out). Also che[...]

17 T HE O FF IC E C O NNECT E THE R NET H UB 8 AND 8C Ether ne t Hub 8 and 8C— Front Alert 12 3 45678 1 % 2 % 3 % 6 % 1 2 % 2 5 % 5 0 % 8 0 % OfficeConnect Ethernet Hub 8C Port Status Netw ork Utilizatio n COAX Green = OK, Y ellow = P artitioned Power Collision Activity Alert LED orange Alerts you to excessive network use or an isolated ( partiti[...]

18 Ether net Hub 8 and 8C—Rear Power Adapter socket Only use the power adapter that i s supplied with thi s OfficeConnect hub. Do not use any other adapter . 10BASE-2 port (Hub 8C only) Can be used to connect your hub to other OfficeConnect hubs and equipment with 10BASE-2 cabli ng. If used, it is effectively a ni nth port. Refer to “Connecti n[...]

19 Conne cting Work stations and Othe r Equip ment t o Y o ur Hub WAR NING: Please read t he ‘I mportant Sa f ety Information’ s ection bef ore you s tart. WARNHINWEIS: Bitte les en Sie de n Abschnitt ‘Wichtige Sicherhe itsinformationen’ s orgfältig durch, bevor Sie das Gerät einschal t en. A VERTISSEMENT : V euille z li re attentiv ement[...]

20 Conn e ctin g Hub s Us in g 10 BAS E-2 Connect a 10BASE-2 ‘Y’ pie ce to eac h of your hubs (Hub 8C only). Connect the ‘Y’ pi ec es wit h 10BASE-2 c able to for m a singl e segment, a s show n in Figure 7. Remember to term inat e the tw o free ends of the seg me nt by fittin g terminators (end pieces). T o disconnect a 1 0BA SE-2 cable, t[...]

21 Conn e ctin g Hu bs U si ng 10 BA SE- T Y ou can connect hubs together with 10BASE-T in a number of ways , but for si mplicity w e r ecommend the foll owing method, a s shown in F igure 8: 1 Start ing fr om the bottom, connec t th e port 8 of t he lower hub t o port 7 of the hub immediately above. Repeat this for each hub. 2 Set a ll Uplink /Nor[...]

22 P RO B L E M S OLVING FO R THE H UB 8 AND 8C The Of ficeConnect hub has be en designed t o aid you when detect ing and solving possible proble ms with your network. These proble ms are rare ly serious, the cause is usual ly a disconne cted or damaged c a ble, or incorr ect configuration. If this section does not solve your problem, contact your [...]

23 Port Status LED not lit for a 10BASE-T port that has a connection. There i s a pr oblem wi th this connect ion. Check t hat you are us ing a strai ght -thr ough 10BA SE-T c a ble which is pr operly connect ed at b oth ends, and is not damaged. If the cable is conn ec ted to port 8, ens ure that the Up link/N orm al switc h is set to Norma l (out[...]

24 N ETWORKI NG T ERM INOLO GY A Netw ork is a collec tion of works tations (f or example, IBM-compat ible per sonal computers ) and other equipme nt (for ex ample, pri nters), connec ted for t he purpose of exchangi ng informat ion. Networks vary i n size, some ar e withi n a single room, ot hers span continents. A Local Are a Netwo rk ( LA N) is [...]

25 D IMEN SION S AND S TAND ARDS Dim ensions a nd Op erating Cond itions Standa r ds Functiona l: ISO 8802/3 I EEE 802.3 Safet y: UL 1950, EN 60950 CSA 22.2 #950 IEC 950 EMC: EN 55022 Class B † EN 50082 -1 FCC Part 15 Class B † * I CES-003 Cl ass B VCCI Class B † CNS 13438 Clas s A Envir onmental: EN 60068 (IEC 68) † Categor y 5 scr eened c[...]

26 E NVIR ONMENTA L S TATEM ENT S It i s the polic y of 3Com Cor poration to be environ mentally-friendly in all operations. T o uphold our poli cy , we ar e committed t o: ■ Establis hing envir onmental per formance standards that comply wi th nationa l legisl ation and regul ations. ■ Conserving e nergy , materials and natural re sources i n [...]

27 I MPO RTANT S AF ETY I NFO RM AT IO N WARNIN G: Warnings contain directions that y ou must fo llow for your personal s afety . Follow all dire ctions ca reful ly . Y o u mu st rea d the foll owing safe ty infor m ation carefully before you install or remove the unit: ■ Except ional ca re must be t aken dur ing installa tion and re moval of t h[...]

28 W ICHT IGE S I CHER HE ITSHI NWEI S E WARNHINWEIS: Warnhinweis e enthal ten Anweisungen, die Sie zu Ihr er ei genen Siche rheit befolge n müssen. All e A nweisungen sind sorgfäl tig zu befolge n. Sie müs sen die f olgenden S icherheitsinfor matione n sorg fältig durchlesen, bev or Sie das Ger äts installi eren od e r au s b a uen : ■ Bei [...]

29 C ONSI GN ES IM PO RTANT ES DE SÉ CU RITÉ A VERTISSEMENT : Les aver tis sements prés entent de s consignes que vous devez respecter pour ga r antir votre séc urité per sonnell e. V ous devez res pecter attentiv ement toutes les consi gnes. Nous vous demandons de lire a ttentiveme nt les consignes s uivantes de sécurité av ant d’installe[...]

30 T ECHNIC AL S UPP OR T 3Com pr ov id es ea sy acc ess t o technica l support inf ormation through a variet y of servic es. This section descr ibes these serv ices. Information contained in this secti on is corr ect at t ime of publicat ion. For t he most r ecent informat ion, 3Com r ecommends that you access the 3Com C orporat ion Worl d Wide We[...]

31 Suppo rt from Y our Net work Supp lier If you r equire addit ional as sista nce, contact your network supplier . Many suppl iers ar e authorized 3C om servic e partner s who ar e qualif ied t o provide a variety of service s, including ne twork planni ng, installa t ion, har dwa r e mainte nance, applic ation train ing, and support ser vices. Wh[...]

32 Here is a l ist of worldwide t echnical t elephone s upport numbers: Count ry T el ephone Numbe r Coun try T ele phone Num ber Asia, Pacif ic Rim Australia Hong Kong India Indo nesi a Japan Malaysia New Ze aland Paki stan Philippines 1 800 678 515 800 93 3 486 +61 2 9937 50 85 001 80 0 61 0 09 0031 6 1 6439 1800 8 01 777 0800 4 46 398 +61 2 9937[...]

33 Lat i n Am e ric a Ar genti na Bra zi l Chile Col om b ia A T&T +800 666 5 065 0800 1 3 3266 1230 0 20 064 5 98012 212 7 Mex ico Per u Pu er to Ri c o Ve n e z u e l a 01 800 CARE ( 01 800 2273) A T&T +800 666 5065 800 666 5065 A T&T +800 666 5065 Nor th Am er ic a 1 800 876-32 66 Cou ntry T ele ph one Num ber Coun try T ele pho ne N[...]

34 Retu rni ng Products for Repair Befor e you se nd a pr oduct dire c tly to 3Com for repair , you must fi rst ob tain a Retur n M ateri al Auth orizati on (RM A) number . Products sent to 3C om without a uthorization numbers wi ll be returne d to the s ender unopened, at th e sender’ s ex pense. T o obtain an aut horizat ion number , c all or f[...]

35 3Co m Co rp or ati on Li m ite d W arra n ty 3Com Offic eConnect E t hernet Hu b 4, 4C, 8, 8C The d uration of the w arra nty for the Offi ceConne ct Etherne t Hub 4, 4C , 8, 8C (3C1670 4A, 3 C16703A, 3C16 700A, 3C1 6701A ) is li fetime, i nclu ding th e power ada p ter . Advance hard ware e xchan ge is avai labl e during t he f irst year from y[...]

36 pre-a uthorize d by 3C om with a Ret urn Mat erial Aut hori zation (RM A) numbe r marke d on the outsi de of the pack age, a nd sent prepai d and pa ckage d appr opriately f or saf e ship ment, and it is recomm end ed that they be i nsure d or sent by a me thod t hat provi des f or tra cking of t he pack age. T he r epaired or replace d item w i[...]

37 D ISCLA IM ER Some countr ies, s tates, or province s do not allo w the excl usion or limi tatio n of impli ed war ranties or the limi tation o f incid ental or c on sequenti al damag es fo r certa in prod ucts sup plied to co nsumers, o r the limi tation of liabi lity for persona l injury , so t he above limi tations an d excl usions may b e li[...]

38 E LECTR OMAGNETIC C OM PA TIB IL ITY FCC S TATEM ENT This equip ment has be en t ested and f ound to com ply wit h the limi ts for a C lass B digita l device , pursu ant to P art 15 of the FCC Rul es, and the C anadian Departme nt of Communi cati ons Equi pment Standa rds en title d, “Digi tal Appara tus,” IC ES-003. T hese limits are desig [...]

39 W al l mounting screw hole guide 150 mm (5.9 in) 3C 1670 0 .bo ok Pa ge 39 T u esda y , J uly 1 3, 19 9 9 9:5 9 AM[...]

Part No. DUA 16 70-0AA A04 Publ ished June 19 99 40 3C 1670 0 .bo ok Pa ge 40 T u esda y , J uly 1 3, 19 9 9 9:5 9 AM[...]