Manuel d'utilisation / d'entretien du produit DS-16B du fabricant EMC
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EMC Enterpr ise Storage EMC Corporation 171 South S treet, Hopkinton, M A 017 48-9103 Cor por ate Headquar ters : (508) 435-1000, (800 ) 4 24-EMC2 Fax : (508) 435-5374 Ser vice : (800 ) SVC-4EMC Depar.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Contents Copy right © 2000 EM C Corpo rati on. All rig hts reserve d. Print ed May 2000 No part of this pub lication may be re produced .
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Conte nts Japan: United States: This eq uipment ge nerates, u ses, and may e mit radio fre quency energy.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Contents Trade mark Info rmatio n EMC 2 (the EMC logo), EMC, ICDA (Integrated Cached Disk Array), MOSAIC:2000, and Symmetrix are register.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual FCC W arning (USA only) This equipm ent has been tested and complies w ith the limits for a Class A computing d e vice pursuant to Part 15 of the FCC Rules.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l W arning s and Cautions - EN610 00-4-3 Rad i a ted RF - EN61000- 4-4 Electrical Fast T ransients - EN61000- 4-5 Surge - EN610 00-4-6 Con .
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Notic es ............ ............................ ............................. ............................ ...................... ........ v Preface ........................ ............
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Contents Chap t er 3 Switch Management Comparing Switch Management A ccess Methods .............. ........ 3-2 Managing Through Fr o nt Pane l Buttons ......... ................. .........
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Conte nts Appendix C Error Mess ages Erro r Message Formats .................. ....................... ................. ........ C-2 Front Panel Message Formats ....................... ...
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Contents.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual 1-1 Departmental Switch Model 16B Front Panel ........... ................. .............. 1-2 2-1 Model DS-16B with Two Power Supplies ....... ........... ................. ........... ...
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Figures.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Preface As part o f its effort to cont inuously imp r ove and e nhance the pe rformance and capabilities of it s product line, EMC periodi c ally releases new revisions of hardwar e and microcode .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Preface How this Manual is Organized The following table describes how the manual is organiz ed.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Preface DANGER A danger notice con t ains information essent i al to avoid a hazar d that will cause severe pe rsonal injury , death, or subs tantial pr o per ty damage if you i gnore the warning.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Preface.
Introduction 1 Invisible Body T ag • Intro duction ................. ........... ................. ........... ................. ........... .... 1-2 • System Components .................... ................. ........... ................. ........
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Introdu ction Intr oduction Figure 1-1 Departmental Switch Model 16B Front P anel The Departmen t Switch Model 16B is a 16-po rt Fibr e C.
Introduction Introdu ction • Reli able – Highly integra ted, reliable, mult ifunction (ASIC) devices ar e used throughout the switch. • High perf ormanc e – Low-latency , high-perform ance des.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Introdu ction System Com ponents The motherboar d is enclosed in an air-cooled chassis which may be either mounted in a standar d rack or used as a standalone unit. The chassis includes an RJ -45 Ethernet connection for switch set up and managem ent.
Installatio n 2 Invisible Body T ag • Unpacking the Switch ...................... ................. ................. ............... 2-2 • Site Considerations ........................... ............................. .................... 2-3 • Installation Considerations .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Installation Unpac king the Switch While unpacking the switch, check to make sure the following items are included: • Switch un it • .
Site Conside r a tions Installa tion Site Co nsideration s Cooling Requiremen ts Cooling air is drawn into th e chassis by four fans mounted near the rear of the chassis, venting exhausted air through the front of the switch. Do not bl ock the front or rear air vents.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Installation Installation Considera tions The switch h as optional mou nting hardwar e to m ount the switch in a standar d 19-inch rack. If the switch has had its rubber mounting feet installed, they may need to be r emoved for a rack installation.
Installa tion Considerations Installa tion Fiber cable connections ar e made to the switch ’ s fr ont pane l using standar d dual SC plug connectors as shown in Figure 2-2. Figure 2-2 Dual SC Fiber Optic Plug connector The connectors are keyed and must be ins erted into the GBIC module ’ s connector in proper alignment.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Installation.
Switch M anagement 3 Invisible Body T ag • Comparing Switch Managem ent Access Methods ................... .... 3-2 • Managing Thr ough Front Panel Buttons .................... ................ .... 3-3 • DS-16B Switch Menus ................. ..
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Comparing Switch Management A c cess Methods There ar e severa l access methods for managing a s witch. T a ble 3 -1 summ arizes the dif fer ent mana gement acc ess method s.
Managing Through Front Panel Buttons Swit ch Mana gement Managing Through Fr ont Panel Buttons Figure 3-1 shows the front panel button s. Figure 3-1 Front P anel Functionality Control Buttons T able 3-2 lists the prim ary control button function s. The function of the button changes depending on the menu level.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Activ ating Menu Display The switch ’ s front panel display is n ormally not il luminated. Pressing the front panel buttons activa tes the display: If no comman d is issued, the d isplay turns off after 30 secon ds.
DS-16B Sw itch Menus Swit ch Mana gement DS-16B Sw itch Menus The following m enus are controlled using the front panel buttons: Figure 3-2 Menu Hierarch y C o nf i gur at i on M enu O per at i on M e.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Commands T able 3-3 shows the f r ont pa nel commands and their equivalent Te l n e t c o m m a n d . Ta b l e 3 - 3 Front P anel and T elnet Commands Menu Front Panel T elne t Command Default Configuration Etherne t IP Address ipAddrSet 10.
DS-16B Sw itch Menus Swit ch Mana gement Unset QuickLoop Port configure 0 QuickLoop P ar tner WWN a/Partner 00:00:00:00:00:00 :00:00 Reset to Default configDefault N /A Operation Switc h Offl ine Swit.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management P or t Throughput portPerfShow N/A T emperature tempShow N/A Error L og errShow N/A Licenses licenseShow N/A T est Swit.
DS-16B Sw itch Menus Swit ch Mana gement Configuration Menu Y ou configure the switch usin g the Configuration Menu. Pr essing <Enter> while in the Configu ration Menu selects the option to choose commands.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management After c hanging any of t he following menus fr om the fron t panel or T elnet connection, you mus t r e boot the switch for the ch anges to ta ke effect.
DS-16B Sw itch Menus Swit ch Mana gement The default subnet mask value is none. Refer to the network administrator for the appro priate subnet mask. Enter the switch ’ s subnet address by using <Up> and <Down> to increment or decr ement the displayed valu e.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Gatew ay Address Pre ssing <Ente r> w hile Gateway add ress is selected, displa ys: The default gatewa y addr ess is shown abo ve. Y ou must enter a va lid gateway address, if required.
DS-16B Sw itch Menus Swit ch Mana gement R_A_T O V Press ing < Enter> whi le R_A_TOV is selected, displays: Resource Allocation T ime Ou t V alue ( R_A_TOV) is adjustable in 1-second in cr em e nts usin g fr ont panel con tr o ls, but its value is displayed in mil liseconds.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Operating Mode The operating modes are deter m ined by the h ost adapter . The six operating mod es for the switch are: The administrator determines the a d apter in use, then sets the swi tch for the corresponding operating mo de.
DS-16B Sw itch Menus Swit ch Mana gement VC Link Ctl Pre ssing<E nter> whi le VC Link Ctl is selected, displays: The V irtual Cha n nel Lin k Contr ol changes the lin k control channel. There ar e two optio ns: 0 and 1. Option 0 f or ces data receipt acknow ledgments on Class 2 channels to be sent back on the data channel.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management channel 6 or 7. V erify that the multi ca st channel has the f rame class priority set to the frame class of the expected tra ffic.
DS-16B Sw itch Menus Swit ch Mana gement Selecting the Y es option th en pressing <Enter> causes all values in the Configuratio n Menu to r eset to default conditions. O nce the Ethernet IP address and the Switchname are changed, they are not reset to default values.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Switch Offline The shutdown process is initia ted fr om the front panel by pressing <Enter> while the Switch Offline message is displayed.
DS-16B Sw itch Menus Swit ch Mana gement Por t Ena b le P ressin g <Ent er> w hile the Port Enable message i s displaye d opens a submenu where you select the port. Pressing <Enter> while th e selected port is disp layed, enables the selected port.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Status Menu Y ou can retrieve informat ion on the switch using the Status Menu. The menu is inform ational only; you cannot make cha nges to the switch ’ s sta tus from this m enu.
DS-16B Sw itch Menus Swit ch Mana gement Wo r l d w i d e N a m e Pre ssing <Ent er> w hile Worldwide Name is selected , displays: The switch ’ s WWN is a uniqu e numeric identifier for each sw itch and it is assigned by the man ufactur er . A numberin g scheme administra ted globally assures that th is WWN is unique.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Flash Date Pre ssing <E nter> whil e Flash Date is selected, displays: This display gives the date and time for the last f lash firmwar e update.
DS-16B Sw itch Menus Swit ch Mana gement position when the ports ar e viewed fr om the switch ’ s f ro nt pa nel. The definitions assig ned to the example are : • E – E_Port is an interswitch expa nsion port, used to connect to a n E_Port of another sw itch to build a lar ger switch Fabric.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Te m p e r a t u r e Pre ssing <Ent er> w hile Temperature is selected, displays: Using th e <Up> or <Dow n> buttons, the user can t oggle betw een Centigrad e (default ) and Fa hrenh eit te mperatur e values.
DS-16B Sw itch Menus Swit ch Mana gement Error Log Selecting Error Log , then pr essing <Enter>, displays: The err or log stores the las t 64 erro r types sensed by the switch.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switch Management Licenses Se lecting Licenses , then pr essing <Enter>, displays: The license display sho ws a bit map in hex of the installed license options.
Fr ont P anel D iag nost ics 4 Invisible Body T ag • Front Panel Di agnostics .............. ........... ................. ................. ......... 4-2 • Status and Activity Indicators ............... ................. ........... .............
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Front P anel Diagnostics Fr ont P anel D iagnostics This sectio n gives a diagnos tic overview and di scusses: • Diagnos tic Overview • Status and Activity Indicators • Dia gnost ic T ests See Appendix C, Err or M essa ges , for the actual error messa ge descri ptions.
Fr ont P anel D iag nost ics Front P anel Diagnostics Diagnostic Front Panel Displays If you susp ect a switch or a Fibr e Channe l port failure, a visual check of the color LED In dicators, shown in Figu r e 4- 1, determines the status of each port.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Front P anel Diagnostics Status and Activity Indicators Fro nt Panel LED P o rt Indi cator s The color and fla sh speed of each port ’ s LED, as described i n T able 4-1, in dicates the individual port ’ s st atu s.
Status and Activi ty Indicato rs Front P anel Diagnostics 7. Address assi gnment; afte r the maste r switch is identifi ed, port address es may be assigned. Each switch tries to keep the same address es that were pr evi ously used. These ar e stored in the switch ’ s conf igurati on flas h PROM .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Front P anel Diagnostics Diagnostic T ests The following tests ar e available from the switch ’ s fr ont pane l and via T elnet.
Diagn ostic T ests Front P anel Diagnostics Switch Offline Pr essing < Enter> whi le Switch Offl ine is selected displays : T ests that would j e opardize data transm ission r equire taking the switch offline. If the switch is not offline, a prompt appears before the test is allowed to proceed.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Front P anel Diagnostics If the memory tests OK, the fr ont panel displays: Related er ror messages : D IAG-MEMOR Y , DIAG-MEMSZ, DIAG-ME.
Diagn ostic T ests Front P anel Diagnostics Pr essi ng <Enter> while Central Memory Test is selected displays a reminder to take the switch o f f line, if it is not offline.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Front P anel Diagnostics Port Loopback T est The portLoopbackT est verifies the intended functional operation of the switch by sending frames from each port ’ s transmitter back to the same port ’ s r eceiver via an int ernal har dware loopback.
Diagn ostic T ests Front P anel Diagnostics All port s on the switch must be connected or else th e switch shows a n erro r condit ion. When runni ng the cross port te st, you must se t the operati ng mode value to 0 or 1. Modes 2 and 3 do n ot send out the E LP used to discover switches.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Front P anel Diagnostics Related er ror messages: DIAG-INIT , DIAG-POR TDIED, DIAG- XMIT , DIAG-POR TSTOPPED, DIAG- ERRST A T , DIAG- ERRST A TS, DIAG-POR T ABSENT Dis play T est Pre ssing <Ent er> w hile Display Test is selected causes a series of test characters to be displayed.
Specifications A Invisible Body T ag • General Specifications ................. ................. ........... ................. ........ A-2 • Fabric Management Specifications .................. ............................ ... A-3 • Safety Specifications .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Specifications General Speci fi cations T able A-1 shows the sw itch specifications. T able A-1 Switch Specifications Specifications Descriptio n Fibre Channel protocol ANSI Fibre Channel Standard ( F C-PH) F abric Initializ ation Com plies with FC-SW 3.
Fabr ic Manage ment Specif ications Specifications F a bric Managem ent Specif ica tions T able A-2 shows Fa bric management specific ations: Ta b l e A - 2 F abric Management Specifications Standard .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Specifications Safety S pecif ications T able A- 3 Sho ws Sa fety spec ificat ions: T able A-3 Safety Specifications Countr y Safety EMC Canada CSA 22.
Safety Specifications Specifications Optical Po rt Specifications Fibre Channe l interfaces of a DS - 16B swi tch equipped with an optical port interface uses a short wavelen gth (780 to 850 µ m.) or long wavele ngth (127 0 to 1350 µ m) la ser t ransm itte r .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Specifications Dimensions The switch may be configured for either rack m ount or tabletop use. Rack Mount Dimensions 2U, 19-in. rack mount (EIA co mpliant) H: mm (1.71 in. ), W : 428.6 mm (16.
Switch Supp ort B Invisible Body T ag • Switch Support ....................... ........... ................. ............ ................ ... B-2 • Support T ool ..................... ............................. ............................ ...
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Switc h Suppor t Switch Sup por t Support for your switch can be o btained from EMC. Please co ntact EMC to r eport hardwar e or software problems.EMC is also the corr ect source for switch r epairs or for supplying spare components.
Err or Messages C Invisible Body T ag • Erro r Message Formats ............... ........... ................. ........... .............. C-2 • Diagnostic Err or Message Formats. ................. ............ ................ ... C-4 • Erro r Message T ables .
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages Err or Message Formats Ther e are two err or message formats depending on whether you ar e gathering info rmation from the fr o nt panel or via T elnet. The front panel shows an abbreviated message and via T elnet di splays the entire err or message.
Erro r Message For mats Error Messages T o display error message from the front panel 1. From the front panel, select the Sta tus menu. 2. S elect Er ror Log. 3. Scro ll through the err or log (if no err ors encountered , the panel displays “ No Error ” ).
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages Diagnosti c Err or Message Formats If any port f ails during a diagnos tic test, it is marked BAD in the status display . T o r etest a port which has been marked BAD , clear the por t and set to OK usin g the diagClearError (port#) command.
Diagno stic Err or Message Fo rmats Error Messages Error Mess age Numbers An err or number ERR#xxxx a ppears at the end of an err or message. T able C-2 matches each error number with the test that caused the erro r and the name of the err o r . Look up the complete definition of the error name and the actions that will correct it in T able C-3.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages 1020 centralMemor yT est DIAG-CMBISRT O 1021 DIAG-CMBISRF 1025 DIAG-LCMRS 1026 DIAG-LCMTO 1027 DIAG-LCMEM 1028 DIAG-LCMEMT.
Diagno stic Err or Message Fo rmats Error Messages 2640 por tLoopbackT est DIAG-ERRST A T (ENCIN) 2641 DIAG-ERRST A T (CRC) 2642 DIAG-ERRST A T (TRUNC) 2643 DIAG-ERRST A T (2LONG) 2644 DIAG- ERRST A T.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages 3040 crossPortT est DIAG-ERRST A T(ENCIN) 3041 DIAG-ERRST A T(CRL) 3042 DIAG-ERRST A T(TRUNC) 3043 DIAG-ERRST A T(2LONG) 3.
Diagno stic Err or Message Fo rmats Error Messages 384F spinSilk DIAG-INIT 385F DIAG-POR T D IED 3840 DIA G-ERRST A T (EN CIN) 3841 DIAG-ERRST A T (CRC) 3842 DIAG-ERRST A T (TRUNC) 3843 DIAG-ERRST A T.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages Err or Message T ables T able C-3 Diagno stic Error Messa ges Message Description Probable Cause Action DIA G-BADINT Err#1.
Error Mes sage T a bles Error Messages DIAG-CMICKSUM Err#2036 [cmiT est] CMI message r eceiv ed failed bad checks um test. ASIC or mainboar d fai lure Replace mainboard assemb ly DIAG-CMIDA T A Err#20.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages DIAG-ERRST A T Err#2640-2647 , 3040-3047, 3840-3847 [por tLoopbackT est, crossP or tT est, spinS ilk] P or t Error Statistics counter i s non-zero, meaning an er ror was detected when receiving frames.
Error Mes sage T a bles Error Messages DIAG-LCMTO Err#1F26, 10 26 [centralMemor yT est, cmemRetentionT e s t] Central Memo ry Timeout: Data tra nsf er initiated di d not complete within the timeout per iod. ASIC failure Repl ac e mainboard assemb ly DIAG-MEMNULL Err#0112 [ramT est] T est failed to malloc.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages DIAG-REGERR_ UNRST Err#0B16, 0416 [por tRegT est, sramRetentionT est] P or t failed to unreset.
Error Mes sage T a bles Error Messages F ABR IC , NO _ALIASID , LOG_WARNING No free multicast alia s T oo many multicast groups in use Remove some of the groups.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages FCIU , IUCOUNT , L, S T otal number of IUs Count < 0 OS error Contact custome r support FCPH, EXCHBAD , L, S Bad exchan.
Error Mes sage T a bles Error Messages SYS, BADPTR, LOG_ERROR Bad system poi nter OS error Contact custom er support SYS, INTRPT , LOG_CRITICAL Bad system interrupt OS error Con tac t customer s uppor.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Error Messages FSPF , REMDOMAIN , LOG_ERR O R R emote Domain ID out of range OS error Conta ct customer suppor t. NBFSM, NGBRST A TE, LOG_ERROR Wrong inpu t to neighbor FSM OS err or Conta c t customer s upport.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Sales and Ser vice Loca tions Corporate Headquarters EMC Corporation Hopkinto n, Massachuse tts 01748-91 03 U.S.A. 508-435- 1000 1-800- 424-EMC2 Asia Pac ific Headquarters EMC Japan K.K. P.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Sales and Serv ice L ocations Houston, TX 713-621- 9800 Indiana polis, IN 31 7-577-976 6 Inglewood, CA 310-364-1 222 Irvine , CA 714-833 .
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Sales and Ser vice Locations L yon, France (33) 7 860 1 330 Marse ille, Fran ce (33) 429 2 2549 Melbou rne, Austra lia (61) 3 653 9519 Mil.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Sales and Serv ice L ocations.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual B Bad EOF C-12 BadO r dSet C- 12 BB_cr edit 3-1 2 boot failur e 4-5 boot pr om date 3-22 booted at 3-21 buttons down 3- 3 enter 3-3 tab/es.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Index E E_D_TO V 3-13 Enc_in C-12 Enc_out C-12 enter butt on 3-3 error log 3-25 ethernet co nnections 2-5 ethe rnet IP address 3-10 ether.
Depar tmental Sw itch Model DS -16B Hardware Reference Manual Inde x status menu 3-20 boot prom dat e 3-22 boot e d at 3-21 curre nt date 3-2 1 error log 3-25 firmware d ate 3-2 1 firmw are versi on 3.
Depar tmental Switc h Model DS-16 B Hardware Reference Manua l Index.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté EMC DS-16B c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du EMC DS-16B - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation EMC DS-16B, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le EMC DS-16B va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le EMC DS-16B, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du EMC DS-16B.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le EMC DS-16B. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei EMC DS-16B ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
