Instruction/ maintenance manual of the product 3C16723A 3Com
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Of ficeConnect ® Fast Ether net Hub 4, Hub 8, Hub 12 Use r Gu ide (3C16 723 A , 3C16 722 A, 3C 167 21 A) 3C 1672 1 .bo ok Pa ge i We dn es day , Jul y 7 , 19 99 3 :0 5 P M.
3Com Corporati on ■ 5 400 Bayfront Pl aza ■ Santa Clara , California ■ 95052-8145 Copyri ght © 1 999, 3C om T ec hnolog i es. All righ ts reserve d.
3 Intr oducti on 5 Crea ting Y our Network 6 Fast Etherne t Hub 4 and Hub 8— Fr ont 6 Fast Etherne t Hub 4 and Hub 8— R ear 7 Fast Etherne t Hub 12—Fron t 8 Fast Etherne t Hub 12—Rear 9 Be fo .
4 3C 1672 1 .bo ok Pa ge 4 Wed ne sd ay, J ul y 7, 199 9 3:0 5 PM.
5 I NTRODUCTI ON Welcome to the world of networking with 3Com ® . In the modern business env ir onment, communicati on and sharing information i s crucia l. Computer networks have pr oved to be one of the fastes t modes of communication but , until re ce ntly , only lar ge businesses coul d af f or d the net w orking advantage.
6 C RE A T I N G Y OUR N ETWORK Fast Ether net Hu b 4 and Hub 8— Front 12 3 45678 1% 2% 3% 6% 12% 25% 50% 80% Port Status Netwo rk Utilization Green = OK, Y ellow = P artitioned Alert OfficeConnect Fast Ethernet Hub 8 Power Collision Activity Alert LED orange Alerts you to excessive network use or a partitione d 100BASE-TX port.
7 Fast Ethe rnet Hu b 4 and Hub 8— Rear Power adapter socket Only use the power adapter that i s supplied with thi s OfficeConnect hub. Do not use any other adapt er . Uplink /Normal sw itch Affects the operation of the highest numbered port (port 4 on Hub 4 and port 8 on Hub 8).
8 Fast Ether net Hu b 12—F r o nt 7 1 8 2 9 3 10 4 11 5 12 6 1% 2% 3% 6% 12% 25% 50% 80% Port Status Netwo rk Utilization OfficeConnect Fast Ethernet Hub 12 Alert Power Collision Green = OK, Y ellow = P artitioned Alert LED orange Alerts you to excessive network use or a partitione d 100BASE-TX port.
9 Fast Ethe r net Hub 12—R ear 12 6X 7X 1X POWER Power adapter socket Only use the power adapter that i s supplied with thi s OfficeConnect hub. Do not use any other adapt er . Uplink /Normal sw itch Affects the operation of the highest numbered port (port 12) .
10 Before Y o u Start Y our OfficeConnec t hub comes with: ■ One power adapter for use wit h the Off iceConnect hub ■ A Pr oduct Registr ation car d for you t o fill out and r eturn ■ Four rubber feet ■ A st acki ng cl ip ■ T wo unit labels and e ight cable t ies.
11 St ackin g the Unit s T oge ther The Ru bber F eet The four self-adhesi ve r ubber feet preve nt y our hub f r om moving ar ound on your desk. Only s tick t he feet to the marke d areas at each cor ner of the underside of your hub if you intend t o place t he unit dir ectly on t op of the desk.
12 Positio ning Y our OfficeConne ct Hub When install ing your Of ficeConnect hub, ens ure: ■ It i s out of direct sunlight and away fr om sourc es of heat. ■ Cabling is aw ay f rom power l ines, fluor escent li ghting fixtur es, and s our ces of electric al noise s uch as radios, trans mitt er s and br oadband am plifiers.
13 Conne cting Work stations a nd Othe r Equip ment t o Y o ur H ub WAR NING: Please read the ‘Import ant Safe ty Information’ s ection befor e you start . WARNHINWEIS: Bitte les en Sie den Absc hnitt ‘Wichtige Sicherhe itsinformatione n’ sorgfältig dur ch, bevor Sie das Gerät einschal ten.
14 Connect ing 100BASE-TX Hub s Y ou c an connec t two Offic eConnect hubs toget her , as s een in Figur e 4, w ith 100BASE- TX in a numbe r of w ays, but f or simplic ity we r ecommend the fol lowing method: 1 Connect the highest-number port (port 4 on Hub 4, port 8 on Hub 8, port 12 on Hub 12) of t he lower hub to any por t of the uppe r hub.
15 P RO B L E M S OL VING The Of ficeConnect hub has bee n designe d to aid y ou when detecti ng and solving pos sible pr oblems with your network. These pr oblem s ar e rar ely seri ous; the cause i s usually a disconnect ed or damaged c able, or inco r r ect configuration.
16 Port Status LED not lit for a port t hat has a connection. There i s a pr oblem wit h this par ticular connect ion. Check th at the equipme nt connect ed to the hub is pow ered on, opera ting corr ectly , and contains a 100BASE-TX c onnection.
17 N ETWORKING T ERM INOLO GY A Netw ork i s a coll ection of works tations (for example, IBM-compati ble PCs) and other equipment (f or exampl e, printers), connected for t he purpose of exchanging information or sharing resour ces. Networks va ry in size, some ar e wit hin a singl e room, other s span contine nts.
18 D IME NS IO NS AND S TAND ARDS Dimens ions and Oper ating C ondi tions OfficeCon nect F ast Ether net Hub 4 OfficeCon nect F ast Ether net Hub 8 Of f iceCo nnect Fas t Ether net Hub 12 500g (1.1lb) 225m m (9in.) 0 to 40°C (32 to 105°F) operating temperature 4 V A 14 BThU/hr power 0 to 90% (non-condensing) humid ity 35.
19 St andar ds Functional: ISO 8802/3 IEEE 802.3 Safety : UL 1950, EN 60950 CSA 22.2 #950 IEC 950 EMC: EN 55022 Clas s B † EN 50082-1 FCC P art 15 Class B † * ICES-003 C lass B VCCI Class B † CN.
20 E NVIR ONMENT AL S TATEM ENT S It i s the policy of 3C om Corporation t o be environ mentally- f riendly in all operat ions. T o uphold our poli c y , w e are c ommitted to: ■ Establis hing envir onmental per formance standa rds t hat comply wi th national leg islation and regul ations.
21 I MPO RTANT S AF ETY I NF ORM ATI ON WARNIN G: Warnings contain directions that you must fo llow for your pers onal safety . Follow all dire ctions ca reful ly .
22 W ICHT IGE S ICHER HE ITSHI NWEI SE WARNHINWEIS: Warnhinweis e enthalte n Anweisungen, die Sie z u Ihrer ei genen Sicherhe it befolge n müssen. Alle Anweisungen sind sorgfäl tig zu befolge n.
23 C ONSI GN ES IM PO RTANT ES DE SÉ CU RITÉ A V ERTISSEMENT : Les avert issements pr ésentent de s consignes que vous devez r es pecter pour garantir votre séc urité pers onnelle.
24 T ECHNI CAL S UPP ORT 3Com pr ovides easy a ccess to t echnical support inf ormation through a variet y of services. This section describes these serv ices.
25 Suppo rt from Y our Net work S upp lier If you r equir e additional as sistance, contact your network supplier . Many suppl iers ar e authoriz ed 3Com servic e partner s who are qualifie d to provide a variet y of se r vice s , including ne t wor k planning, inst allation, har dware mainte nance, application t raining, and support servic es.
26 Here is a l ist of worldwi de technical t elephone support numbers: Count ry T eleph one Num ber Coun try T ele phone N umber Asia, Pacif ic Rim Australia Hong Kong India Indo nesia Japan Malaysia .
27 Lat i n Am e ric a Ar gentin a Bra zi l Chile Col om b ia A T&T + 800 66 6 5065 0800 1 3 3 266 1230 0 20 0645 98012 212 7 Mex ico Per u Pu er to Ri c o Ve n e z u e l a 01 800 CARE ( 01 800 227.
28 Retu rni ng Pr o duct s for Re p air Befor e you send a pr oduct directly t o 3Com for re pair , you must fi rst ob tain a Retur n Ma teri al Auth orizatio n (RMA) number . Products sent to 3Com wit hout authori z ation numbers wi ll be r eturned to the s ender unopened, a t the sender’ s ex pense.
29 3Co m Co rp or ati on L IMITE D W ARRANTY 3Com Offic eConnect F ast Ethernet Hub 4, Hub 8, Hub 12 The d uration of th e warra nty for t he Offi ceConne ct Fast Ether net Hub 4 (3C1672 3A), H ub 8 (3C1 6722A ) and Hu b 12 ( 3C16721A ) is li fetime, i ncluding the p owe r ada p t er.
30 pre-a uthorize d by 3C om with a Ret urn Mater ial Aut hori zation (RM A) numbe r marke d on the outsi de of th e pack age, a nd sent pr epai d and pa ckage d appr opriately f or saf e ship ment, and it is recomm ended t hat th ey be i nsure d or sent by a me thod that provi des f or tracki ng of t he pack age.
31 D ISCLA IM ER Some countr ies, sta tes, 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 onseq uential damag es fo r certa .
32 E LECTR OMAGNETIC C OMPA TI BI LI TY FCC S TATEMEN T This equip ment has be en tes ted and f ound to com ply with t he l imits for a C lass B digita l device , pursu ant to P art 15 of the FCC Rul es, and the Cana dian Departme nt of Communi cati ons Equi pment Standa rds en titled, “D igita l Appara tus,” IC ES-003.
33 3C 1672 1 .bo ok Pa ge 33 W edn e sd ay, J ul y 7 , 19 99 3 : 0 5 P M.
34 3C 1672 1 .bo ok Pa ge 34 W edn e sd ay, J ul y 7 , 19 99 3 : 0 5 P M.
35 W all mounti ng screw hole guide Fast Ether net Hub 4 and 8 150mm (5.9in.) W all mounti ng screw hole guide Fast Ether net Hub 12 142mm (5.6in.) 3C 1672 1 .
Part No. DUA 16 72-1AA A03 Publ is hed Jun e 19 99 36 3C 1672 1 .bo ok Pa ge 36 W edn e sd ay, J ul y 7 , 19 99 3 : 0 5 P M.
An important point after buying a device 3Com 3C16723A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com 3C16723A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com 3C16723A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 3C16723A you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 3C16723A will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 3C16723A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com 3C16723A.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 3C16723A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 3C16723A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
