Manuale d’uso / di manutenzione del prodotto ACC-2000 del fabbricante LevelOne
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KVM IP Console Mo dule 1 / 87 LevelOne User Man ual ACC - 2000 KVM I P Cons ole Module V er . 1. 1.
KVM IP Console Mo dule 2 / 87 Certificates FCC This eq uipment has been t ested a nd foun d to comply w ith Part 15 o f the FCC Rules. Operatio n is su bject to the fol low ing tw o condi tions: (1) T.
KVM IP Console Mo dule 3 / 87 T ABLE OF CONTENT S 1. The q uick i nstall atio n gui de .............................................................................................. 5 1.1 Inst allation .................................................
KVM IP Console Mo dule 4 / 87 6.4 User M anag emen t ................................................................................................ 50 6.4.1 Cha nge Pas sw ord .........................................................................
KVM IP Console Mo dule 5 / 87 1. The quic k ins t al lation guide The KVM IP C onsole M odule re direc ts l ocal keyboar d, mous e and v ideo dat a to a rem ote adminis tration cons ole. It allows you to cont rol one or many c omput ers locall y at the s erver site or r emot ely vi a the Inter net using a st anda rd br owser .
KVM IP Console Mo dule 6 / 87 1. 2 Init ial IP config uration In factory default, DHCP mode is dis abled (IP auto c onfigur atio n = None) , and the IP setting s are as bel ow: IP addres s 192.
KVM IP Console Mo dule 7 / 87 ■ Setup the fixed IP a. S etu p “ IP auto c onfi gur ation ” as “ None ” ; s etup IP address an d Subn et mask b. Enter Super user log in and p assword fo r Authenti catio n (defaul t : super/p ass) c. Click Setup Dev i ce .
KVM IP Console Mo dule 8 / 87 client system. Note: At a minimu m yo u must h ave IE7 .0, IE8.0, N ets cape7.0, Moz illa 3. 2, Firefox 3.6 ) an d abov e inst alle d on y our cl ient c omput er .
KVM IP Console Mo dule 9 / 87 system. The Remote C onsole w ill behave ex actly the s ame w ay as if y ou wer e sitti ng directl y i n front o f the scr een of y our remo te s ystem. That m eans t hat both th e keyboar d and mous e can be u sed in the usual w ay .
KVM IP Console Mo dule 10 / 87 2. Introdu ction The KVM over IP tec hnolog y ( KVM Sw itch + IP Consol e Modul e ) comb ines digit al r emo te KVM acces s vi a IP net w orks wit h comprehe ns ive and i ntegr ate d system ma nage ment.
KVM IP Console Mo dule 11 / 87 2.2 System requirem ent Hardware Item Descript ion Local host side KVM sw itch uni t (KVM - 0831, KVM - 1631, KC M - 0831, KCM - 1631) Remote C onsole s ide One PC or Mu.
KVM IP Console Mo dule 12 / 87 Using KVM IP Consol e Module , admini str ators c an det ermin e w hich ki nd of seri ous hardw are fail ure has occur red (S ee ta ble 2 -1 ).
KVM IP Console Mo dule 13 / 87 3. Hardw are inst alla tion The KVM IP Console M odule swi tch r edirect s local key board, m ouse an d v ideo data to a remote administra tion c onsole . It allow s you to control one or many comput ers loc ally at the serv er sit e or remo tely vi a the Inter net usi ng a standar d br owser .
KVM IP Console Mo dule 14 / 87 4. Config urati on 4.1 Ini tial Confi guration If DHC P mode is enabl ed (IP aut o configurat ion = DH CP) , th e KVM IP C onsole M odule w ill t ry to con ta ct a DH CP server in th e sub net to w hich it is physica lly connected .
KVM IP Console Mo dule 15 / 87 ■ Setup fixed IP a. S etu p “ IP auto c onfig urati on ” as “ None ” ; s etup IP address a nd Su bnet mask b. Enter Super user log in and p assword fo r Authenti catio n (defaul t : super/pass) c. Click Setup Dev i ce .
KVM IP Console Mo dule 16 / 87 A uthe ntication To adjus t the a uthent icat ion s ettings , enter yo ur log in as a s uper user, and c hange your passw ord. Super user login Enter t he log in na me of t he sup er user . The i nitial val ue is “ super ” .
KVM IP Console Mo dule 17 / 87 IP a u t o - confi guration W it h thi s opti on, y ou can speci fy w hether th e KVM IP C onsole Mo dule should g et i ts networ k setti ngs from a D HCP or BOOTP se rv er . For DHCP , enter “dhc p”, and for BOOTP ent er “ bootp” .
KVM IP Console Mo dule 18 / 87 4. 2 .3 Au t o m atic mouse speed and m ouse s y nchronization The auto mati c mous e speed mode perfor ms the s pee d detecti on during mo use sync hroniz ation.
KVM IP Console Mo dule 19 / 87 W in dow s X P know s a setti ng na med “im prov e mous e acc elerati on”, whi ch has t o be deacti vated . Act ive D esktop If the Activ e Desktop feature of Mi croso ft Window s is enabled do n ot use a pl ain backgr ound.
KVM IP Console Mo dule 20 / 87 5. Usage 5.1 Prere quis ites The KVM IP C onsole M odule features a n embedd ed oper ati ng sys tem an d appli cation s of fering a var iety of st andardi zed i nter faces . This c hapter w ill describe b oth thes e inter faces, and t he w ay to use t hem i n a more det aile d ma nner .
KVM IP Console Mo dule 21 / 87 Figure 5- 1. The Inte rnet Explorer displa y ing the enc ryption key length New er web br owser s general ly support strong encryption o n de fau lt. 5.2 Logi n into the K VM I P Consol e Module and logout 5.2.1 Login into the KVM IP Console Module Launch y our w eb br ow ser .
KVM IP Console Mo dule 22 / 87 Warning The user “super” is no t all owed to l ogin v ia the seri al in ter face o f t he KVM IP Console M odule . Warning Please make s ure t o chang e the super user passw ord i mmedi ately af ter y ou have inst alled an d acc essed your KVM IP Console Modul e f or the first time.
KVM IP Console Mo dule 23 / 87 Return to the main p ag e of th e KVM IP Console M odul . Open the KVM IP C onsol e Mo dul re mote console . Ex it fro m the KVM IP C onsole Mo dul fron t end. Table 5- 2. Buttons from the front e nd War ning If there is no activ ity for 30 minutes , the KVM IP C onsol e Mo dul will log you out, auto matic ally .
KVM IP Console Mo dule 24 / 87 Figure 5- 4. Remote C onsole The Re mote Co nsole wi ndow i s a Jav a Applet that tr ies to es tabli sh its ow n TCP connecti on to the K VM IP C o nsole Mod ule. The pr otocol tha t is r un ov er this connecti on i s neit her HTTP or H TTPS, b ut R FB (R emote Frame Buf fer Prot ocol) .
KVM IP Console Mo dule 25 / 87 W it h res pect to the key board, the v ery exac t remote re prese ntati on mig ht lea d to so me confusi on as y our local keyboard ch anges it s key board layout acc ording to th e remot e host sy stem.
KVM IP Console Mo dule 26 / 87 when usi ng acc elerated mouse s etting s on th e host sy stem. I n gene ral , ther e is no need to chang e mouse setting s o n the h ost .
KVM IP Console Mo dule 27 / 87 Figure 5- 7. Remote C onsole Exclus iv e Mode • Scaling Allow you to sc ale dow n the Remote Co nsole . You can s till use bo th mous e and key board, h owev er the scaling al gor ithm w ill not preserv e all display detail s.
KVM IP Console Mo dule 28 / 87 • Local Cursor Offers a lis t o f dif ferent cursor shap es t o cho ose from for t he loc al mouse poi nter. The sel ected s hap e wi ll be sav ed for the cur rent user and ac tiv ated t he nex t tim e this user opens t he Re mote Cons ole.
KVM IP Console Mo dule 29 / 87 Video Setting s throug h the remot e cons ole Figure 5- 10 . Video Settings Pane l Brightness Contr ols the bri ghtness of the pictur e C ontras t Controls the con tras t of th e pict ur e Clock Defines the h oriz ontal freq uency for a video line a nd dep ends on the v ideo mode.
KVM IP Console Mo dule 30 / 87 savi ng netw ork bandw idth. This functio n i s mainl y used f or tro ublesh ooting purpos e wher e some old v ideo frag ments are dis play ed as no t update d in ti me for so me reason ; for ex am ple, noi se fil ter for VGA is se tting too lar ge.
KVM IP Console Mo dule 31 / 87 sys tem that us es a n US - E ngli sh key board map ping . In thi s cas e y ou have t o change t he Local Key board se tting to t he ri ght lang uage, manual ly . • H o t k e ys Opens a lis t of h otkey s defi ned b efore.
KVM IP Console Mo dule 32 / 87 the video pic ture. Figure 5- 14 . Encoding Compress ion Color Depth: set the d esired c olor depth. Y ou m ay s elect b etw een 8 or 1 6 bit for Vide o Opti mi zed/co mpressi on l evel 0, or b etw een 1 and 8 bit for compres sion lev el 1 t o 9.
KVM IP Console Mo dule 33 / 87 Note: If dis play ing mot ion pic tures on a c onn ection w ith low speed y ou may achiev e an impr ovem ent reg ardi ng the vi deo trans f er rat e by low ering the color depth a nd dis abling the op tion "Vi deo O pti mized".
KVM IP Console Mo dule 34 / 87 6. Menu Opti ons 6.1 Remot e Control 6.1.1 KVM Console Figure 6- 1. KVM Console To o pen the KVM c o nsole, ei ther cl ick on th e men u entr y on the l eft, or o n the c onsol e picture o n the r ig ht. To r efresh t he pi cture, cli ck on t he but ton “ Refre sh”.
KVM IP Console Mo dule 35 / 87 6.1.2 Telnet Console Figure 6- 2. Telnet C on sole The KVM IP Consol e Modul e firmwar e featur es a Telnet serv e r tha t enabl es a user to connect v ia a stan dard Telnet clie nt.
KVM IP Console Mo dule 36 / 87 he lp Dis plays the list of pos sibl e commands c ls Clears the scre en qui t Exi ts the curr ent s essi on and discon nects fro m the cl ient versio n Displ ays t he release in formati on termina l Starts t he ter minal pass through mode for ser ial por t 1.
KVM IP Console Mo dule 37 / 87 • Clic k “Brow se” butto n and s elect the imag e fil e. Figure 6-7 . Select Im age Fi le The max imum i mage s iz e is l imited to 1.44M B. For larger image ple ase see s ecti on 6. 3 .2. • Clic k “Upl oad” butt on t o upload the c hosen i m age file int o the KVM IP Console Module ’s onb oard me mory .
KVM IP Console Mo dule 38 / 87 Figure 6-9 . Select Wind ows Shar e The follow ing informat ion has to b e giv en to mount the i mage proper ly : Share hos t -- The ser ver name or i ts IP addres s. Share folder name -- The name of the sha re folder t o be us ed.
KVM IP Console Mo dule 39 / 87 Figure 6- 10 . Explorer context me nu Select “S hari ng” t o open t he co nfig uration dial og. Figure 6- 11 . Share configuration dia log Adjust t he sett ings for t he sel ected direc tory . • Activ ate the s elect ed d irector y as a share .
KVM IP Console Mo dule 40 / 87 Creat ing an Image Floppy Images UNIX and UNI X - like OS To creat e an i m age fil e, make use o f “dd” . This i s one of t he ori ginal UNIX util ities a nd is incl uded i n ever y UNIX - like OS (UNIX, Sun Solaris, and Linux ).
KVM IP Console Mo dule 41 / 87 To creat e a C DROM image file, c opy the c ontents of t he CD ROM to a fil e. Y ou can use the follow ing command: dd [ if=/dev/ cdr om ] [ of= /tm p/cdrom .image ] dd reads the entire di sc from the dev ice /dev/cdrom , and s aves the out put in the speci fied outpu t file /t mp/cdr om .
KVM IP Console Mo dule 42 / 87 6.3.3 Dr iv e redirect ion The Dri ve R edirect ion i s anoth er p ossibi lity t o use a vi rtual di sc dr iv e on the remot e computer. W it h Driv e Redir ection y ou do n ot have to us e an i mage file but may w ork with a driv e from y our loc al comp uter on the r emote machi ne.
KVM IP Console Mo dule 43 / 87 Disable D riv e Redirection If enable d t he Driv e Redirection is swi tched off. Force re ad - only connec tions If enable d t he W rit e Su pport for th e Driv e Redirection is sw itched o ff. It is n ot possi ble to wr ite on a r edirec ted devi ce.
KVM IP Console Mo dule 44 / 87 Figure 6 -15 . Driv e Redirect ion S etup Driv e Redirect ion S ettin g s Star t Dr ive R edirec tion Figure 6 -16 . Drive Redirec tion dialog Driv e to redi rect Dev ice This is the ad dress ( eit her th e DNS n ame or the I P addr ess) of th e KV M I P Console Mo dule you w ould l ike to connec t to.
KVM IP Console Mo dule 45 / 87 Dr i ve T he local driv e you want to shar e w ith the r emot e comp uter , whi ch could be Flo ppy di sc, CD - ROMs, USB - S ticks and hard driv es. Port This is t he netw ork port. By defaul t, KVM IP Cons ole M odul e uses th e rem ote cons ole p ort (#443) her e.
KVM IP Console Mo dule 46 / 87 Navigation Buttons Connect/Disc onnect To establish t he dr iv e redirecti on ple ase pr ess the Connect butto n once. If all the s etti ngs are corr ect, the stat us bar displ ays th at t he conn ection has be en es tablished, t he Conn ect button is dis abled and t he Disco nnect butto n i s enabled.
KVM IP Console Mo dule 47 / 87 6.3.3 .2 Built - in Jav a Dr i ve Redirection 1. R un Remot e Con trol > KVM Cons ole . 2. Click “ Floppy ” icon.
KVM IP Console Mo dule 48 / 87 3. Click C onnect Drive or Connect ISO 4. Sel ect a dr iv e to re direct ( if Conn ect D riv e).
KVM IP Console Mo dule 49 / 87 5. Sel ect a IS O im age to redir ect (i f Connec t IS O) 6.3.4 Options Figure 6-17 . USB mass storage option Set this optio n to dis able the mass s torag e emul ation (and hide t he v ir tual driv e) if no image file i s curr ently loaded.
KVM IP Console Mo dule 50 / 87 6.4 User M anagement 6.4.1 Change Password Figure 6-18 . Set passwor d To change y our password, ent er the new password i n the upper ent ry field. Rety pe the passw ord in th e field below . Cl ick “ Apply ” to submit y our chang es.
KVM IP Console Mo dule 51 / 87 Upon del iv ery, the ac count “super ” has the passw ord “pas s”. M ake sur e to ch ange passw ord immedi atel y a fter you hav e install ed and on initi al access of your KVM IP Console M odule . Exi sting users Select a n exi sting user for modi ficati on.
KVM IP Console Mo dule 52 / 87 6.5.1 User Console The fol low ing s etting s are user s peci fic. T hat means, the s uper user can c ustomi ze these setti ngs f or ever y user s separat ely. Changi ng the s etting s for one user does not affect t he set ting s for t he other user s.
KVM IP Console Mo dule 53 / 87 KVM IP Cons ole Mod ul e and the Remote Consol e wi ll be compr essed i n order to sav e bandw idth. Sinc e hig h co mpress ion r ates c onsu m more comp uting power of KVM IP Consol e Mod ule, t hey sho uld no t be us ed w hile se v eral user s are access ing the KVM I P Consol e Mod ule si multaneo usly .
KVM IP Console Mo dule 54 / 87 a stabl e an d identi cal Java V irtu al Ma c hine across di fferent platf orms. The Remote C onsole s oftw are is opt imiz ed for this JVM ver sions and o ffers wi der range o f functi onali ty w hen run in SUN's JV M.
KVM IP Console Mo dule 55 / 87 6.5.2 Key board/Mouse Figure 6- 22 . Keyboard and Mouse Settings Host Inter face Enables a c ertain inter face the mo use i s co nnecte d to. You c an choose be tw een “Auto” for auto mati c detect ion, “ USB” for an USB mo use, an d “P S/2” for a PS/2 mouse.
KVM IP Console Mo dule 56 / 87 layout extend end by t hree addi tional w indow s ke ys, “ Generi c 10 6 - Key PC” for a japanese k eyboard, an d “Appl e Maci ntosh” for the Appl e Mac intos h. Keyboar d time out Recomma nded as “ enable ” for keyboard timeout when host is UN IX or UNIX - like OS.
KVM IP Console Mo dule 57 / 87 6.5.3 Vide o Figure 6- 23 . Video Settings Miscellaneous Video Setti ngs • Noise f ilter This opti on defines how the KVM IP Co nsole Module reacts t o smal l chang es i n the vi deo input sig nal.
KVM IP Console Mo dule 58 / 87 6.6 Devic e Settings 6.6.1 Netw o r k The Netw ork Set tings panel as show n in Figur e 6- 24 allows chang ing netw ork rel ated paramet ers. Eac h par ameter wi ll be ex plai ned below . Once appli ed the new netw ork setting s w ill i mmediatel y come i nto e ffect.
KVM IP Console Mo dule 59 / 87 IP auto c onfig uratio n W ith t his o ption you c an con trol i f the KV M I P Console Mo dule should fetc h its networ k setti ngs fro m a DHCP or BOOTP ser ver . For DH CP, selec t “dhcp” , and for BOOTP s elect “bo otp” ac cording ly .
KVM IP Console Mo dule 60 / 87 Bandwi dth limit atio n The maxi mum netw ork traffic g enerat ed thro ug h the KVM I P Consol e Modul e ethernet devic e. Value in Kbit/s. Enable T elnet access This enables the T elnet function . Enable SSH access This enables the SSH (Secure SHell ) function .
KVM IP Console Mo dule 61 / 87 Figure 6 - 26 . Dy namic D NS Scen ario The KVM IP Cons ole M odule is reachabl e via the IP addr ess of the DSL rout er, w hich is dy namicall y ass igned by the prov ider.
KVM IP Console Mo dule 62 / 87 Hostn ame This is th e host name of t he KV M I P Console Modul e that is pr ovided by the Dynami c DNS Ser ver . (use the w hole name i ncludi ng t he dom ain, e.g. testserv er.dyndns.org , not j ust the actu al hos tname).
KVM IP Console Mo dule 63 / 87 For ce HTTPS If this optio n is e nabled access to t he web front - end is only pos sible using an HTTPS con nectio n. The KVM IP Console Mo dule w ill not list en on the H TTP por t for inco ming connecti ons.
KVM IP Console Mo dule 64 / 87 The rule c an be config ured to a pply to a p articular Gr oup l evel ( All, User , Super , Adminis trator ). W hen the KV M I P Console M odule r eceiv es a TCP packet , it will process t he pack et w ith the chain rule d epicte d bel ow .
KVM IP Console Mo dule 65 / 87.
KVM IP Console Mo dule 66 / 87 6.6.4 Certificate Figure 6- 28 . Cer ti ficate Se ttings The KVM IP Console M odule us es the Secur e Sock et Lay er ( SSL) protocol for a ny encry pted netw ork traffi c betw een itsel f and a c onnected cli ent.
KVM IP Console Mo dule 67 / 87 • Upload the cer tific ate t o the KVM IP Conso le Module using the “ Upload” butt on as shown i n Fig ure 6- 29 .
KVM IP Console Mo dule 68 / 87 that is use d to acc ess t he KVM IP Console Module with a w eb browser (wi thout the “http://” pr e fix) . In cas e the name g iv en here a nd t he actu al netw ork name di ffer , the brow ser will pop up a sec urity warni ng when t he KV M I P Consol e Modul e is accessed using HTTPS.
KVM IP Console Mo dule 69 / 87 6.6.5 Serial Port Figure 6- 31 . Serial Port The KVM IP Console M odule Serial Settings ( Figure 6- 31 ) allow s you t o spec ify what devic e is conn ecte d to the ser ial por t and how t o use it .
KVM IP Console Mo dule 70 / 87 Serial line sp eed The spee d the KVM IP Console Modul e is co mmunica ting wi th the mod em. Most o f all mode ms av ailabl e tod ay w ill support the d efault val ue of 1 15200 bps . In case y ou are using an ol d modem and di scov ering problems tr y t o low er this speed.
KVM IP Console Mo dule 71 / 87 6.6.6 Dat e / Time Figure 6- 32 . Date / Time This link re fers t o a pag e, w here the i nternal r eal - time clock of th e KVM I P Console Module c an be s et up ( see Figure 6- 32 ). Y ou hav e the poss ibil ity to adjus t the clock manually , or to use a NTP ti meser ver .
KVM IP Console Mo dule 72 / 87 6.6.7 Ev ent Log Figure 6- 33 . Event Log Importan t ev ents lik e a logi n failure or a firm war e update are log ged to a s electi on o f logg ing desti nations (see Figure 6- 33 ). Eac h of those ev ents bel ongs to an ev ent group, w hich can be a ctiv ated separately .
KVM IP Console Mo dule 73 / 87 Warning If the r eset b utt on on t he HTML fron tend i s used to res tart the KVM IP Console M odule, all logg ing information i s s aved per manent ly and i s avail able a fter the KVM I P Console Modul e has be en start ed.
KVM IP Console Mo dule 74 / 87 Firmw are v alidation fail ed. devi ce Firmw are fil e uploa ded b y user... devic e Firmw are updat ed by user... devic e Intern al log file cl eare d by user... devic e Security Violation security Host Pow er host Host Res et host Connect ion to R emo te Cons ole fai led: reaso n.
KVM IP Console Mo dule 75 / 87 This secti on con tains a summary with v arious i nformati on abou t thi s KVM IP C onsole Module and it’s c urr ent firmw are and al low s y ou to res et the card. You may hav e a look at Fig ure 6 - 34 for an example.
KVM IP Console Mo dule 76 / 87 6.7.2 Ev en log Figure 6- 36 . Event Log List Fig ure 6- 36 displ ays the log lis t includi ng t he ev ents t hat ar e logg ed by the KVM I P Console M odule .
KVM IP Console Mo dule 77 / 87 The KVM IP Co nsole M odule is a c omplete standal one co mputer . The s oftw are it r uns is called firmw are. The fir mware o f the KVM IP Consol e M odule can be u pda ted r emotely in order to ins tall new functi onali ty or special feat ures.
KVM IP Console Mo dule 78 / 87 6.7.4 Unit Reset Figure 6- 38 Unit Re set This sec tion al low s y ou to reset s peci fic par ts o f the dev ice. This inv olves the b oth keyboar d and mous e, th e vi deo e ngine and t he KVM IP C onso le Mod ule its elf .
KVM IP Console Mo dule 79 / 87 are out of a rang e w here the pict ure l ooks gr ainy . Use th e auto adjus tment f eatur e to correc t a flic kering vi deo. Login on KV M I P Console Module fails. W as the cor rect c ombi nation of user a nd pa ssw ord giv en? On deli very , the user ”super ” has the passw ord ” pass ” .
KVM IP Console Mo dule 80 / 87 The color of rem ote console displaying a pinkish tint. If you ar e exper iencin g t he remote control screen displaying a pinkish tint wit h some graphi c cards , pleas e try adjusting the br ig htness of th e re mote c onsol e by follow ing s teps below .
KVM IP Console Mo dule 81 / 87 Module ? The KVM IP Console M odule ac cepts 32 lett ers o f user name an d pas swor d. How many concurrent use r of KV M I P Console Module ? The KVM IP Console M odule ac cepts 15 co ncurr ent user s.
KVM IP Console Mo dule 82 / 87 9. A d dendum A. Ke y Codes Table A .1 s how s the key codes used to de fin es key strok es or hotk ey s for sever al functions . Please note that thes e key codes do not repres ent nec essar ily key characters th at are us ed on internati onal k eyboar ds.
KVM IP Console Mo dule 83 / 87 Key (and aliases) 0 - 9 A - Z , TILD E - , MINUS =, EQUALS ; ’ <, LESS , . /, SLASH BAC K SPACE TAB [ ] ENTER CAPS LOCK , BACK SLA SH LSHIFT , SHIFT RCTRL RSHIFT L.
KVM IP Console Mo dule 84 / 87 B. Video M odes Table B .1 li sts the v ideo modes KVM IP C onsol e Module supports . Pleas e don’t us e other custom v ideo setti ngs bes ides of thes e. I f done so , KVM I P Cons ole Modul e may not be able to d etec t them .
KVM IP Console Mo dule 85 / 87 C. Use r Role Permiss ion s Table C .1 lists th e user role per missions grant ed for t hree us er rol e grou ps: “ Sup eruser ” , “ Administr ator ” , and “ U.
KVM IP Console Mo dule 86 / 87 E. Bandwi d t h Consumpti on The prec onfig ured ne tw ork speed selec tion s imply resul ts i n a di f ferent C ompres si on and Color D epth con figur ati on in orde r t o matc h the dif ferent bandw idth li mita tions o f the networ k ty pe ( UMTS, I SDN, etc.
KVM IP Console Mo dule 87 / 87 F. Cable diagrams V G A C a b l e : HDD B15 Mal e to Male USB 2.0 Cable: USB A - B cable CA T5/ 5E/6 Straight Through UTP/STP Cable.
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 LevelOne ACC-2000 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 LevelOne ACC-2000 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso LevelOne ACC-2000 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul LevelOne ACC-2000 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il LevelOne ACC-2000, 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 LevelOne ACC-2000.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il LevelOne ACC-2000. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo LevelOne ACC-2000 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.
