Instruction/ maintenance manual of the product 2103R-CSDI HP (Hewlett-Packard)
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® E D G E R O U T E R M O D U L E I N S T A L L A T I O N G U I D E F O R E T H E R N E T P art No. 17-00590 -3 Published August 1996.
ii 3C om Corporation ■ 5400 Bayfront Plaz a ■ Santa C lara, Cali fornia ■ 95052-8145 ©3Com Corpora t ion, 1996. All rights reserved. No pa rt o f t his documentation may be reproduced in any fo.
iii 3Com, Boundar y Routing, C ardBo a rd , CardF acts, EtherDisk, Ethe r Link, EtherLink II , L ANp lex, LAN sentr y , L inkBuild er , NETB uilde r , NETBuilde r II, NetF a cts, ONcore, O Ns e mble, ORnet, Parallel T as king, SmartAgent, T ok en L ink, T ranscen d , T riChanne l, a nd V ie w Builder are registered trade marks of 3Com Corporation.
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v C O N T E N T S A B O U T T H I S G U I D E Int r o duc tion 9 Aud ien ce 9 How to Use T h is Guide 9 Convent ions 10 Re late d Do cu m ents 12 3Co m Doc ument s 12 Cisco Doc um ents 13 Referen ce D.
vi Configuring DIP Switche s 2-8 Configuring the ONline Ca rrie r DIP Switches 2-8 Select ing a Networ k 2-9 Isolating the ONline Edge R ou te r Mod ule 2-9 Configuring the ONco r e Car rier DIP Switc.
vii 4 M O N I T O R I N G E D G E R O U T E R M O D U L E O P E R A T I O N Mo nitoring Edge Rou ter M od ule Ope ration 4-1 Showing Mod ule Conf i gura tion and Sta tu s 4 -3 Us i ng th e S HOW MO DU.
viii B T E C H N I C A L S U P P O R T Onlin e T echn ical Ser vice s B-1 3Com Bulletin Bo ard Se r vice B- 1 Access by Analog M odem B-2 Access by Dig ital M odem B -2 Wor ld W id e We b S it e B-3 3.
A B O U T T H I S G U I D E Introduction This g uide d esc ribes how to ins tall an d confi gure a 3Co m ® ONlin e ™ or ONcore® Edg e Router mo dul e i n to the 3Com ONli ne System Concen trator or ONcore Switc hing Hub. In a dditi on, this gui de provid es troubl esh ooting sug gesti ons in case a probl em ar i ses with the mo d u le.
10 A B O U T T H I S G U I D E C onv ention s T able 2 and T abl e 3 li st con vent io ns use d th ro ugh ou t th is guid e . Proc e d u r es for c onfiguri n g Edge Route r engin e parameter s Cha pt.
Conventions 11 “Syn t ax” v s. “Com mand” When the wor d “syn tax” i s used in this g uide, it ind i c ates that the gene r a l form o f a co mmand synta x is provide d . You mus t evalu ate the syntax and s upply the appropr iate port, path , value , addres s, or s tring.
12 A B O U T T H I S G U I D E Re late d Documents This se ction provid es in forma tion on sup por ting docum entati on, in clud ing: ■ 3Com Doc uments ■ Ci sc o Do cum en ts ■ Referen ce D ocu.
Related Documents 13 Cisco D oc ume nts Cis co® CD- ROM docu ments d e scri be com ma nds and oth er softw are-re lated infor matio n you n eed to o perate th e Edge R outer mo dule. Re fe rence Docu ment s The fol l owi ng d ocum en ts suppl y rela t ed bac k g round infor mati on: Case, J.
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1 I N T R O D U C T I O N This ch apter provi des an introdu c tion to the 3 Com ® Edge R ou t e r mod ule. This ch apter contai ns the follow i ng secti ons: ■ Pro d u c t O ver vi ew ■ Edge Rou.
1-2 C H A P T E R 1: I N T R O D U C T I O N Fig ure 1 -1 T ypi c a l Edge Rou ter Mo dule Con ne c tions The rou t e r module r uns Cis co stand ar d so ftware a n d ful ly intero perates with the: .
Product O v ervie w 1-3 Edge R ou ter M odule Archite c ture Each Edge R outer modul e co n s i s ts o f the foll ow i ng co mponen ts: ■ Carrier – Provide s connec tion s to o ne o f th ree 3 Com sw itchin g hub produ cts . ■ Engi ne – Provid es Ethe rnet- t o -W A N por t c onnec tion s.
1-4 C H A P T E R 1: I N T R O D U C T I O N Fi gu re 1 -2 sh ow s the arch itec ture of each Edg e Rou ter mod ule ty pe. Fig ure 1 -2 Edg e Router Mo dul e Architec ture ONl ine ca rrie r ONlin e S .
Edge Route r Modul e Featu res 1-5 Edge R oute r Mo du le Featu res This se c tion d escr ibe s the major fea t ures of the Edge R ou ter mod ule, in cl ud i ng : ■ So ft wa re O pt ions ■ T opol .
1-6 C H A P T E R 1: I N T R O D U C T I O N T able 1-1 Softwar e Featu re S ets Fe atur e Ca te gory Fea ture Se t IP/IPX Deskt op Desktop plu s IBM Ent e rpr ise LAN Suppor t IP, B ri dgin g, L AN E.
Edge Route r Modul e Featu res 1-7 T opolo gy Switc hin g Usin g topolo g y switch ing you ca n: ■ Switch the ONli ne Edge Ro uter mod ule amon g any of th ree Ether ne t n etw or k s ( cha nnel s) .
1-8 C H A P T E R 1: I N T R O D U C T I O N Fig ure 1 -3 Networ k R eliabil ity Configur ation IOS R outer Soft ware Upda tes The IOS s oftware i n the Edg e Rou ter m odul e eng ine can be upda te d by purcha sing fi eld-up gradeab le softw are dis tributi on k its .
Edge Route r Modul e Featu res 1-9 Y ou ca n als o pur c ha se a n u p gra de kit to up gr a de yo u r IP/ IP X , D e skt op , or Desk top plus IBM so ftware to a ver sion w ith an enhan ced featur e set. Conta c t y o ur 3Com resell er o r 3Com Cus tomer S uppo rt for more infor matio n and par t numb ers.
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2 I N S T A L L I N G T H E E D G E R O U T E R M O D U L E This ch apter contai ns the follow i ng secti ons: ■ Instal lati on Fl owchar t ■ Precauti onar y Proced ures ■ Quick In stallatio n .
2-2 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E Installat io n F lowchart The flow ch ar t in F ig ure 2- 1 identi fies th e steps requi red to insta ll and con figu re the Edg e Rou ter m odul e.
Precautionary Proce dures 2-3 Pr ecau tionar y Procedu res Elec tros tatic dis ch arge (ESD ) can damag e static- sen sitive d ev ices on circui t boards.
2-4 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E Qu ick Inst allation fo r Un manage d Hu bs Fo l low the gene r al steps outlined in T abl e 2 -1 to instal l and config ur e the Edge Router m odul e in an u n m anage d ONli ne or ONcore hub .
Quick Installation 2-5 Qu ick Inst allation for Man age d Hubs Fo l low the gene ral steps outl i ned in T able 2-2 to in stal l and con figure the Edge Router mo dule in a manag ed ONlin e or ONcore hub . T able 2-2 Quick Installa tion for Mana ged Hubs St ep Proce dur e Re fe r t o: 1 Unpa c k the modul e.
2-6 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E Unp a ck in g Procedu res T o unp a ck the E dge Ro ut e r mo du le: 1 V eri fy th at the m odu le is th e mod el you ordered by c heck i n g the mo de l num ber li sted on th e s i d e o f the shi pping car ton.
Verifying Jumper Pl ug Positions 2-7 V erifying Jumper Plug P os itions V erify th e jumper plug p osition s on the ONli ne or ONcore Edg e Router modul e before proce eding with the ins talla tion proce dure. The Edge Router mo dul e i s eq uippe d wi th severa l jumper plug s.
2-8 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E C onfiguring D IP Swi tches DIP sw itches let you selec t the backpl an e netw ork us ed by an ONli n e or ONcore Ed ge Ro uter m odu le.
Conf i guring DIP Switch e s 2-9 F igu re 2 -2 show s the ONli ne car rier DIP switch l ocation . Fig ure 2 -2 ON line Ca r r i e r DIP Switch Loc ation Se lecti n g a Ne twork Use T abl e 2 -4 to selec t a networ k by using the DIP switc hes.
2-1 0 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E ■ Enabl ing or Dis abli ng NVR AM Con fig uration ■ Selec ting a Network F igure 2-3 show s the ONcore carrier DIP swi tch location.
Conf i guring DIP Switch e s 2-1 1 If th e N V S E L DI P sw i tch is : ■ ON (ena bl ed) – The Edge R outer mo du le uses co nfi gurati on settin gs stored in its NVR AM . If NVRAM d oes no t contai n confi gura tion set t in gs, the Edge Router mod ules are assig ned to the Isol ate_1 netw or k.
2-1 2 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E Installing the ONli n e Edge Router Modu le This sec tion descr ibes how to ins tall the ONli ne Edg e Router mo dule i n an ONlin e hu b.
Inst al lin g the ON core Edge Router Modul e 2-1 3 4 Usin g your fin ger s, ti ghten the tw o s pring -loa ded s crew s on the fron t of the mod ule face plate (F ig ure 2- 4).
2-1 4 C H A P T E R 2: I N S T A L L I N G T H E E D G E R O U T E R M O D U L E 3 Inser t the mod ule into the board guid es at the to p and bo ttom of th e slot and sl ide it in to the hu b by press ing firm ly at a point s lig htly bel ow the cen ter of the fa ce pl ate (Figur e 2- 5) .
Inst al lin g the ON core Edge Router Modul e 2-1 5 4 C lo se th e ej ect o r s (F i gur e 2-6) . Fig ure 2 -6 Ope ned and Clo sed M odul e Eje cto rs 5 Usin g your fin ger s, ti ghten the tw o s pring -loa ded s crew s on the fron t of the Edge R outer mo dule facepl ate (do n ot over tigh ten).
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3 C O N F I G U R I N G T H E E D G E R O U T E R M O D U L E This ch apter contai ns the follow i ng secti ons: ■ Mana ged Confi gura tion O ver vie w ■ Attachin g a M anagement T erminal ■ C o.
3-2 C H A P T E R 3: C O N F I G U R I N G T H E E D G E R O U T E R M O D U L E Man aged C onfig urat ion Overv iew Y ou can ma nage an ONl ine or ONcore carrier u s i ng a network manage ment mo du le in st all ed in the same h ub .
Attach ing a Man ageme nt Term inal 3-3 Using ON d ema nd NCS The 3 Com ONd eman d ™ Net work Con trol Sy stem (NCS) is an S NMP man ager w ith a g raphi cal user inter face.
3-4 C H A P T E R 3: C O N F I G U R I N G T H E E D G E R O U T E R M O D U L E C onfiguri ng the C arrier in a Mana ged ONline Hu b T hi s s ect io n de scri bes how to u se net wo rk ma nage me nt com ma nd s t o config u re ONlin e car rier s instal led in an ONli ne Sys tem Con centra tor .
Configuring the Carrier in a Managed ONcore Hub 3-5 C onfiguri ng the C arrier in a Man age d ONco re Hu b Thi s section describes the p ossible sou rces o f ONcore ca rr ie r configurati on se tting .
3-6 C H A P T E R 3: C O N F I G U R I N G T H E E D G E R O U T E R M O D U L E Carrie r NVR A M S ettin g s The ONcore c arrier can store config uratio n s ettings in i ts N VRAM (non -vol atil e ra ndom acces s me mor y), whi ch it can us e whe n power ing on in either a manag ed or u n man age d hu b .
Configuring the Carrier in a Managed ONcore Hub 3-7 Hot Swapp ing an ONco re Mod ule Y ou can remove a mod ule from the ONcore hub a n d ins tal l a n i d entic al modul e in the sam e s lot w ithou t powerin g off the hub.
3-8 C H A P T E R 3: C O N F I G U R I N G T H E E D G E R O U T E R M O D U L E De term ining the Config uration Source T abl e 3-1 s hows h ow to determ in e the c arri er confi guration sou rce . * Use the S HOW DEVICE command to view the DIP configuration setting.
Conf i guring the Edge R outer Engine 3-9 T o as sig n a car r i er b ack pl ane p or t to a n etwor k u sing net work mana gem ent softwa re, use the fol lowin g com man d: se t p ort slo t. po rt ne tw or k {et he rne t_ 1 . .. et he rn et _8 } {i so la te d_1 .
3-1 0 C H A P T E R 3: C O N F I G U R I N G T H E E D G E R O U T E R M O D U L E Fig ure 3 -1 Attach ing a T er minal Cable to the Consol e Por t 2 Attach the DB-25 end of th e a d apter cable to the RS-232 null mod em cable comi ng from yo ur ter minal .
Conf i guring the Edge R outer Engine 3-1 1 Conso le and au xili ar y po rt speci fi cations are provi ded in T abl e 3 -2 a nd T abl e 3 -3, res pectivel y. Mi ni- DI N co nne ctor pi nou ts a re pr o vid ed i n A ppe ndix A. The Edg e Router mo dule is shi pped au toconfi g ured fo r conne c tion t o a network running NetWar e®.
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4 M O N I T O R I N G E D G E R O U T E R M O D U L E O P E R A T I O N This ch apter contai ns the follow i ng secti ons: ■ Moni torin g Ed ge Ro uter Mod ule Ope ration ■ Show ing Mod ule Con fi.
4-2 C H A P T E R 4: M O N I T O R I N G E D G E R O U T E R M O D U L E O P E R A T I O N Fig ure 4 -1 E dge R out er Mod ule LEDs RTR S EO Reset CONSOLE AUX S0 ACT S1 ACT 2103R-CS Router Status Modu.
Showing Module Configuration and Status 4-3 E ach L ED is de sc rib ed i n T a ble 4- 1. Showing Module C onfig urat ion and Status This se c tion d escr ibe s NMM com m and s that show mod ule con figu rati on and s tatus.
4-4 C H A P T E R 4: M O N I T O R I N G E D G E R O U T E R M O D U L E O P E R A T I O N Using th e SHO W MODUL E C omman d The S HOW M OD ULE com man d dis play s infor ma t ion abo ut a speci fic modu le.
Showing Module Configuration and Status 4-5 The follow ing com ma nd displays verbose i n form ation for a n E dg e Rou ter mod ule i nstal le d in slo t 6 of an O Nline hub : O Nline> s how mod ule 6 verbo se S lot Module Ver sion Net work Gene ral Informa tion - ---- --- ------ --- --- ------ - - -------- --- - 0 6 210 3R- CSD v1.
4-6 C H A P T E R 4: M O N I T O R I N G E D G E R O U T E R M O D U L E O P E R A T I O N Using th e SHO W PORT Co mm and Th e SHOW P ORT c omm and di spla ys i nf orma t ion abou t a sing l e p ort o r a l l por ts. The syn tax for th e SHOW P ORT comm and is: SH OW PORT sl ot .
Showing Module Configuration and Status 4-7 No_ V e rbo se is the defau lt op tion for the SH O W POR T com man d. Us e th e No_ V e rbo se opti on to dis pl ay s um mar y i nfor m ati on for th e c ar rier por ts.
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5 T R O U B L E S H O O T I N G This ch apter provi des hardware troubl esh ooti ng infor mati on y ou can us e if the Edge Ro ut er m odu le fails to oper ate correc t ly . If after revi ewi ng the infor matio n in this ch apter , you cannot cor rec t the p roblem , contact you r 3Com represen tative for fur t her a s s ista nce.
5-2 C H A P T E R 5: T R O U B L E S H O O T I N G T r oub leshooting S tar tup Pr o blems This se ction d e scribes h ow to troubl esho ot star tup proble ms by mon itoring the LEDs on the Edge R outer mod ule.
Troubleshootin g Network Conn e c tivity Problems 5-3 T r oub leshooting Network C onnec tivity Pr oblems If the E d ge Rou t e r module does not appear to be routin g traffic proper ly on the netw ork, it may ind icate that there is no co nnec tion to the ne twor k.
5-4 C H A P T E R 5: T R O U B L E S H O O T I N G T r oub leshooting WA N C onnec tivity Pr oblems If you suspec t tha t th e E dg e Router mo dule ha s lost W AN con nec tivity , per form on e or mo re of the fol low ing troubl esho oti ng ac tions : ■ V eri fy that you h ave th e correc t cab le for you r configu ratio n.
Correcting O perating Mal f unctions 5-5 C orrecting Op eratin g Malfu nct ions T abl e 5-1 lis ts the s ymptom s of ope ratin g malfu nc tion s for the Ed ge Ro ute r mod ule an d s h ow s poss ible caus es an d c orrec tive acti ons for th ese mal functi on s.
5-6 C H A P T E R 5: T R O U B L E S H O O T I N G The termin a l f a i ls to respond to commands enter ed a t the keyboar d. The te rmina l is n ot rece iving co mman ds. Po wer o ff the te rmina l, wait 30 se cond s, and then po wer i t on ag ai n. T he ke yb oa rd cab le is attac hed inc orre ctl y.
A S P E C I F I C A T I O N S This appe ndix con tain s the hard ware speci fi catio ns for the 3 Com Edge Router m o dule in the foll owin g sec tion s: ■ G eneral Speci fica tions ■ Elec tric al.
A-2 A P P E N D I X A: S P E C I F I C A T I O N S General Specif ications Electrical Specif ications The fol lowing tabl e lists the basi c power requi reme nts by m odul e type. * ONco re power requirement s are based o n an Edg e Rou ter engi ne ins talled in bay 1 o f the ON core car r ier.
Environm ental Spec if ications A- 3 Environmental Specif ications T abl e A-4 li sts the BTU/h r calcu lation s for the Edge Rou ter mod ule ins tal led in eac h hub ty pe.
A-4 A P P E N D I X A: S P E C I F I C A T I O N S Hub C ap acities This se ction provid es gu ideli nes for in stall ing Ed ge Ro uter m odu les i n ONlin e or ON core h ubs. ONlin e H ub Capa cit ies F oll o w t he g ui del in es in T able A- 6 wh en in sta ll ing ONli ne Ed ge Rout er mo du le s i n a n O Nli n e Sy st em C onc e nt rat or .
Cable Pinou ts A- 5 F oll o w t he g ui del in es in T able A- 8 wh en in sta ll ing ONli ne Ed ge Rout er mod ules in an ONcore 10 -slot o r 17-s lot hu b . . C ab le Pinouts Use the in f o r ma tion in thi s se cti on to ensure that th e cables and conn ecti n g hard ware m eet requi reme nts.
A-6 A P P E N D I X A: S P E C I F I C A T I O N S T hi s s ect io n de scri bes : ■ Con sole P o rt Pi nouts ■ Au xil ia r y Po rt Pi no uts ■ DB-2 5 Nul l Mod em Ca ble ■ Se ri al P ort P i .
Cable Pinou ts A- 7 Fi gu re A- 1 i d entifi es the pin s that the 8 -pin mini- DIN por t uses. F igure A-1 Min i-DIN Seri a l Por t Pi n outs M ini-D IN to D B-25 Mo de m Ca ble T abl e A- 10 l is ts conso l e por t p i nouts fo r t he 3Com Op enHub ™ Mana ge ment Cable (m in i-DI N to DB-2 5 mo dem a dapter ca ble).
A-8 A P P E N D I X A: S P E C I F I C A T I O N S Auxiliar y P or t Pin o u ts T abl e A-1 1 lists th e cable pinouts for th e auxil iar y por t on the Edge R ou ter modu le.
Cable Pinou ts A- 9 DB-25 Nu ll Modem Ca ble Use a n ul l mod e m ca ble to con ne ct the Edg e R ou ter m o dule to an othe r DT E devi ce (for examp le, a dumb te rmi nal ). Se rial Por t Pinouts This se c tion li sts ca ble pinouts for each ty pe of syn chron ous seri al cabl e suppor ted by the ser ial po rts on th e Edge R outer modul e.
A- 10 A P P E N D I X A: S P E C I F I C A T I O N S EIA-53 0 DTE S yn chronou s Se rial Cable Pinout s T abl e A- 13 lists pinouts for EIA-53 0 D TE syn chron ous seri al cabl e (Par t N um ber ER M5 30-C AB) .
Cable Pinou ts A-11 RS-232 DTE an d DCE Serial Cable Pinouts T abl e A- 14 lis ts pinouts for : ■ RS-2 32 DT E synch ron ou s seria l cable ( P ar t Nu mber E R M23 2-CAB) ■ RS-2 32 DCE s ynchron .
A- 12 A P P E N D I X A: S P E C I F I C A T I O N S RS-449 DTE an d DCE Serial Cable Pinouts T abl e A- 15 lis ts pinouts for : ■ RS-4 49 DT E synch ron ou s seria l cable ( P ar t Nu mber E R M44 .
Cable Pinou ts A-13 V .35 DTE and DCE S erial Cable Pinout s T abl e A- 16 lis ts pinouts for : ■ V .35 DTE s ynch ron ous s eri al cabl e (P ar t Numb er E RMV3 5-C AB) ■ V .35 DCE s ynch ron ous s eri al cabl e (P ar t Numbe r ERF V35- CAB) T able A-16 V .
A- 14 A P P E N D I X A: S P E C I F I C A T I O N S X.21 DTE an d DC E Seria l Cable Pinout s T abl e A- 17 lis ts pinouts for : ■ X.21 DTE syn chron ous seri a l cable (P a rt Numbe r E RMX2 1 -C AB) ■ X-21 DCE s ynch ronou s ser ial cab le (Par t Num ber ERF X2 1-CAB ) T able A-17 X.
B T E C H N I C A L S U P P O R T 3Com provide s ea sy acce ss to techn ical su ppor t info rmati on throu gh a variety of s er vices. T his a ppen dix c ontain s th e fol lowi n g s ectio ns: ■ Onl.
B-2 A P P E N D I X B: T E C H N I C A L S U P P O R T Acces s by An alo g M ode m T o reach the ser vice by mo dem , set you r modem to 8 data bits, n o par ity , and 1 stop bi t. Call the teleph one n umber nea rest you: Acces s by Dig ita l Mod em ISDN use rs can c all in to 3Com BBS us ing a digita l mode m for fas t acces s up to 56 Kbps .
Onl i ne Te ch ni cal Ser vi ce s B- 3 World W ide W eb S ite Access the lates t net work ing i nform ation on th e 3Com W or l d Wide Web site by ente ring our UR L into your I n ternet brow ser: h ttp://ww w.
B-4 A P P E N D I X B: T E C H N I C A L S U P P O R T L oc al acce ss nu mber s are av a ila b le w it hin t h e fol lowi ng co u ntr ie s: Sup por t F rom Y o u r Network Supplier If add ition al ass istan ce is re quire d , contact yo ur netw or k suppl ie r .
Support From 3Com Corporation B- 5 Sup por t F rom 3Com C orp orat io n If you are un abl e to recei ve suppor t from you r netwo rk su ppli er , t e chni cal suppor t contrac ts are a vai lable fro m 3Com . I n t he U .S. an d C an ada, ca ll (8 00) 87 6- 32 66 for cus t o mer s er vice.
B-6 A P P E N D I X B: T E C H N I C A L S U P P O R T A ccessing the 3C om ISD MIB The 3Com Mana gem ent Inform ati on Base (MIB ) for the Integ rated System s Divis ion (ISD) de scribes comm an ds that ena ble you to man age 3Com SNMP- ba sed pro duc ts.
I N D E X 1 I N D E X Numerics 3Com Bullet in B oard Serv ice (3ComB BS) B-1 3C om sales offic es B-5 3C omF acts B-3 3ComF orum B- 3 A Audience o f Manua l 9 Aux ilia ry por t pinouts A-8 specificati.
2 I N D E X F F aceplate 2-13 F ax ser vice. Se e 3ComF a cts FCC notice ii F irm ware upgrading 1-8 Flo wcha rt installa tion 2-2 F ront pa nel LEDs 4-1 H Hardwa re spec ifications A-1 Hot swa pping .
I N D E X 3 R Return ing products for repair B-5 Rout er (RTR) LED 5-2 Router problem s troubleshootin g 5-2 Router Sof tware Support Ser vic e 1-8 RS-232 DTE/DCE cable pin outs A-11 RS-449 DTE/DCE ca.
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LIMITED W AR RANTY HAR DW ARE : 3Com warrants its hardwa re products to be free from defect s in workmanship and m aterials, under normal use and service, f or the following lengths of time from t he .
GOVERNIN G L A W: This Limit e d Warranty shall be governed by the laws of the state of California. 3Com Corporation 5400 Bayfront P laza Santa Clara , CA 95052-8145 (4 08) 764-5000 3/18 /96.
An important point after buying a device HP (Hewlett-Packard) 2103R-CSDI (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought HP (Hewlett-Packard) 2103R-CSDI 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 HP (Hewlett-Packard) 2103R-CSDI - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, HP (Hewlett-Packard) 2103R-CSDI you will learn all the available features of the product, as well as information on its operation. The information that you get HP (Hewlett-Packard) 2103R-CSDI will certainly help you make a decision on the purchase.
If you already are a holder of HP (Hewlett-Packard) 2103R-CSDI, 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 HP (Hewlett-Packard) 2103R-CSDI.
However, one of the most important roles played by the user manual is to help in solving problems with HP (Hewlett-Packard) 2103R-CSDI. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device HP (Hewlett-Packard) 2103R-CSDI 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
