Gebruiksaanwijzing /service van het product VDSL2 van de fabrikant SMC Networks
Ga naar pagina of 96
T igerAccess ™ EE 6-Band VDSL2 Switch ◆ 16 VDSL Downlink Ports (1 RJ-21 Co nnector) ◆ 2 Gigabit Ethernet Com bination Ports (RJ-45/SFP) ◆ 1 Fast Ethernet Managemen t Port (RJ-45) ◆ Non-block.
.
20 Maso n Irvine, CA 9261 8 Phone: (9 49) 67 9-8000 T igerAccess ™ EE Installation Guide From SM C’ s T iger line of f eature-ri ch workgro up LAN solutions February 2007 Pub.
Information fu rnished by SMC Netw orks, Inc. (SMC) is belie ved to be ac curate a nd reliab l e . Ho wev er , no respon sibility is assumed by SMC for it s use, nor for an y infring ements o f patents or ot her rights o f third par ties which may res ult fr om i ts use.
v L IMITED W ARRANTY Limited W ar ranty Statement: SM C Networks, Inc. (“SMC” ) warrant s its pro ducts to b e free from defects in w orkmanship and materials , under nor mal use and ser vice, f or the applicable warranty term .
vi WARRA NTIES EXCLUSIV E: IF AN SMC PR ODUCT DOES NOT OPE RATE A S W ARRANTED ABO VE, CUSTOMER’S SOL E REMED Y SHALL BE R EP AIR OR REPLA CEMENT OF THE PRODUCT I N QUES TION , AT SMC’S OPTION .
vii C OMPLIANCES FCC - C lass A This equipment has been tested and found to compl y with the limits for a Clas s A di gital device, pursuant to part 15 of the FCC Rules . Thes e limits are designed to provide r easonable protection against har mful interference when the equipment is operated in a commercial envir onment.
C OMPLIANCES viii networ k until the probl em has been corrected or un til you are sure that the equ ipment is not malfunctioning . This equipment may not be used on coi n service provided by the telephone company . Connection to party lines is subject to state ta riffs .
C OMPLIANCES ix Wa r n i n g : Do not plug a phone jac k connector in th e RJ-45 port. This may damage this device. Attention: Les raccordeurs ne sont pas uti lisés pour le système téléphoniqu e! .
C OMPLIANCES x Pow e r C o r d S a fe t y Please re ad the followin g safety inf or mation c arefully be fore ins talling the s witch: Wa r n i n g : Installation and remo val of the unit must be carrie d out by qualified person nel only .
C OMPLIANCES xi V euillez lire à fond l'infor mation de la sécurité sui vante av ant d'installer le Switch: A VERTISSEMENT : L’installat ion et la dépose de ce groupe doivent être confiés à un personnel qualifi é.
C OMPLIANCES xii F rance et Pér ou uniqu ement: Ce groupe ne peut pas être alimenté par un disposi tif à impédance à la t erre. Si v os alimentations sont du type impédance à l a terre, ce gro.
C OMPLIANCES xiii wenn auch die an d as Gerät angeschlossenen Geräte unter SELV-Bedingungen betrieben werden. W ar nings and Caut ionar y Mes sages Wa r n i n g s (in German) Stromkabel. Dies muss von d e m Land , in dem es benutzt wird geprüft werden: Schweiz Dieser Strom stecker muß die SEV/ASE 1011Best i mmungen einhalten.
C OMPLIANCES xiv En vironmental Statem ent The manufacturer of this product e ndeavour s to sustain an en vironmentally-friendly policy throughout the entire production proces s . This is ac hieved thou gh the follow ing means: • Adherence to national legis lation and regulations on environmental production standards .
xv T ABLE OF C ONTENTS 1 About the TigerAccess EE Switch . . . . . . . . . . . . . . . 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 VDSL Techn ology . . . . . . . . . . . . . . . . .
T ABLE OF C ONTENTS xvi Installing an Op tional SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Connecting to a Power Sour ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Connecting to the Cons ole Port . .
T ABLE OF C ONTENTS xvii A PPEN DICES : A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Diagnosing Sw itch Indicator s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Power and C ooling Proble ms .
xviii T ABLES Table 1-1 Optiona l SFP Transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Table 1-2 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Table 1-3 System Sta tus LEDs . . . . .
xix F IGURES Figure 1-1 VDSL Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Figure 1-2 Front and Rear Panel s . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Figure 1-3 Port and System LED s . . . . . . . . . .
F IGU RES xx.
1-1 C HAPTER 1 A BOUT THE T IGER A CCESS EE S WITCH Overview This Ethernet-ov er-V DSL system c onsists of end-us er CPEs (C ustomer Premise Equipment) conn ected to a VDSL swi tch by s tandard telephone cable . T he V DSL connec tion deliv ers an Ethe rnet data link wh ile simultane ously s uppor ting st andar d tele phone ser vices.
A BOUT THE T IGE R A CCES S EE S WITCH 1-2 The VDSL switc h is typi cally located in a wiring closet or other cen tral location of a multi-dwelling/multi-tenant unit, campus or enterprise.
O VER VI EW 1-3 VDSL Technology VDSL2 (V er y High Bit-R ate Digital S ubscriber Line) is at t he high-end of all th e DSL tec hnologie s , offering t he be st combi nation of fi ber op tic and copper to pro vide high-spe ed broadb and Internet access .
A BOUT THE T IGE R A CCES S EE S WITCH 1-4 VDSL can deliver high-perform ance online applications, such as high-quality video and other switched multimedia ser vices. This Ether ne t-ov er-VDSL syst em provide s robust pe rfor man ce, with a maximum symmetric data rate of 100 Mbps for ru ns up to 200 meters (656 ft).
D ESCRIPTION OF H ARDW AR E 1-5 conne ction (in- band) usin g T elnet, th e on-boar d web age nt, or SNMP-bas ed ne tw ork m anagement softw are. Th e manag ement port pr ovides a d edicate d manag ement channel that operate s outside of the data transpor t network.
A BOUT THE T IGE R A CCES S EE S WITCH 1-6 The follo wing figur e sho ws the compon ents o f the VD SL swit ch. Figure 1-2 Front and Rear Panels RJ-21 P orts The RJ -21 port s on the s witch front panel su ppor t 16 twisted -pair connec tions . The “Line” port connec ts to end -user CPE s thro ugh a punc h-down bo x.
D ESCRIPTION OF H ARDW AR E 1-7 Eac h port als o supp or ts au to-negotiati on of flow con trol, s o th e swit ch can a utomat ically p rev ent po rt buffers from becomin g satur ated. Note: If an SFP tran sceiver (purc h ased sepa rately) is installed in a slot and has a va lid link on the port, th e asso ciated RJ-45 po rt is disa bled.
A BOUT THE T IGE R A CCES S EE S WITCH 1-8 Consol e Port The cons ole port on the sw itch’ s fron t panel is a DB -9 conn ector that enabl es a conn ection t o a t er mina l for per for ming sw itc h monit oring and config uration functio ns .
D ESCRIPTION OF H ARDW AR E 1-9 Table 1-2 Port Status LEDs LED Condition Status VDSL Ports Link/Act (Port 1-16) On Green Port has a val id link Flash ing Green Flashi ng indicates acti vity on the por.
A BOUT THE T IGE R A CCES S EE S WITCH 1-10 Power Supply Socket Th ere is a power s ocket on the f ront pane l of the swi tch for a n A C power cord. Figure 1-4 Power Supply So cket Key Features VDSL Features • H igh-spee d Intern et acces s over ex isting p hone li nes • ITU-T G.
K EY F EAT UR ES 1-11 • Robust operation on severely distorte d lines • Su pports powe r back-off algorithm that per mits a mixed distan ce deploy ment Addition al VDSL2 featu res includ e: • Fa.
A BOUT THE T IGE R A CCES S EE S WITCH 1-12 Expandabi lity • Supports optional 1000BASE-SX, 1000BASE-LX and 1000BASE-ZX SFP transce i vers System F eatur es • T ranspar ent bridging • A ggrega te switch fa bric bandwi dth of 8 .
2-1 C HAPTER 2 N ETWORK P LANNING Introd uction t o Switc hing A network switch allows s imultaneous transmission of multiple packets via non-cros sbar switching . T his means that it ca n partit ion a netw ork more effici ently th an bridges or r outers .
N ETWORK P LANNING 2-2 Th is VDSL switch provides In ter net co nnecti ons of up to 100 Mb ps symmetric, o r an asy mmetric 100 Mbps do wnstream and 50 Mbps upstream ov er 200 meters . Cable dista nces also can run up to 1. 5 k m at lower transmission rates .
A PPL ICAT ION E XAM PLES 2-3 Remote Connections with Fiber Cable Fiber op tic techn olog y allows for long er c abling tha n any o ther med ia type. A 1000BASE-SX MMF Gigabit link can connect to a site up to 550m aw ay , a 1000B ASE-LX (SMF) link up to 10 km, and a 1000B A SE-ZX link up to 70 km.
N ETWORK P LANNING 2-4 can be u sed for small netw orks attac hed to a s ingle switc h. Ho weve r , tagg ed VLAN s shou ld be used for larger net wo rks , and all th e VLANs assigned t o the i nter-switc h links. This switch also has a Pri vate VLAN feat ure.
A PP LIC ATION N OTES 2-5 Applicati on Notes 1. Full-duplex operation on ly applies to point- to-point access (such as when a switc h is attached to a w orkstation, server or a nother switc h). When the switc h is connecte d to a hub , bot h device s mus t opera te in half-duplex mode.
N ETWORK P LANNING 2-6.
3-1 C HAPTER 3 I NSTALLING THE S WITCH Preparing the Site for VDSL/POTS Connections In multi-tenant buildin gs , ph one lines from the ser vice provider enter the site and ar e ter minated at a location refer red to as the MPOE (Minim um P oint of E ntry).
I NS TALL I NG THE S WITCH 3-2 Ins talli ng A ddit ional Equ ipm ent The V DSL switch should be installed c lose to the PBX, punch-down blocks, and patch pa nels, usually in th e baseme nt or w iring clo set. Y ou may also want t o install a ra ck for dis tributi on equipme nt (switch es , router s etc .
I NSTALLING E THER NET C ABLIN G 3-3 •T h e s i t e s h o u l d : - be at the center o f all th e devices yo u want t o link an d near a po wer outlet . - be ou t of dire ct sunlig ht, an d away f rom heat sourc es or are as with a high amount of el ectr omagne tic inte rference.
I NS TALL I NG THE S WITCH 3-4 • Protect ion from radio f requency interf erence em issions • Electri cal sur ge suppr ession • Separ ation of el ectrical wires (swit ch related or othe r) and e.
M OUNTING 3-5 If possible, retain the carton , including the origin al pac king materials. Use them again to repac k the pro duct in case th ere is a ne ed to return it for repair .
I NS TALL I NG THE S WITCH 3-6 T o rack-mount devices: 1. Attac h the brac ke ts to the device u sing the screw s pro vided in the Bracket Mounting K it. Figure 3-4 Attaching the Brackets 2. Mount the device in the ra c k, using fo ur rack-mounting s crews (not provided ).
M OUNTING 3-7 3. If installing a single switch onl y , tur n to Connectin g to a P ower Source on pag e 3-7. 4. If installing multiple swit c hes, mount them in the rack, one below the other, in any or der . Desktop or Shelf Mounting 1. Attach the fou r adhesive feet to the b ottom of the fir st switch.
I NS TALL I NG THE S WITCH 3-8 Installi ng an Optional SFP Transceiver Figure 3-7 Inserting an SFP Transceiver into a Slot Th e switch supp or t the followi ng option al transc eivers: T o in stall an SFP transceiv e r , do the following: 1. Cons ider ne twor k and ca bling r equireme nts to select an appr opriate SFP trans ceiv er type .
C ONNECTING TO A P OWER S OUR CE 3-9 Note: SFP transceive rs are not pr ovided in the s witch pac kage. Connect ing to a Power Source T o connect a device to a po wer so urce: 1. First ve rify that the external A C pow er supply can provide 100 to 240 V A C, 50-60 Hz, 1 A minimum.
I NS TALL I NG THE S WITCH 3-10 and wi thout disrupting th e operat ion o f the devi ces att ached to the unit. Connect ing to the Co nsole Po rt Th e RJ-45 serial port on the switch’ s fron t panel is used to conn ect to th e switc h for out-of -band cons ole conf iguration.
C ONNECTING TO THE C ONSOLE P ORT 3-11 The serial port’ s co nfiguration requirements are as fo llows: • Default Baud rate—9,600 bps • Cha ract er Size —8 Ch aracte rs •P a r i t y — N o.
I NS TALL I NG THE S WITCH 3-12.
4-1 C HAPTER 4 M AKING N ETWORK C ONNECTI ONS The TigerAccess EE Swi tch is desig ned to connect subscrib er por ts via VDSL lines, and uplink to the ser vic e provider’ s network via twisted-pa ir or fibe r optic ca bling . The uplink ports can be co nnected to netw ork card s in PCs and s er vers , as w ell as to hubs , switches or routers .
M AKIN G N ETWORK C ONNECTIONS 4-2 each end. Typica lly 24 AWG (100 oh m)/0.5 mm wir e provides better performa nce than 26 AWG (10 0 ohm)/0. 5 mm wire . Connecting to the Pu nch-down Blocks The swit ch connects directly to t he PBX and building’ s phon e-line punch-down b lock with RJ -21 connec tors .
C ONNECTING RJ-21 C ABL ES 4-3 Using Patch Panels F ollow th e steps below to connect a VDSL sw itch to a building’ s phone-l ine syst em using a patch panel: 1. Connect an RJ-21 cable from th e patch panel to th e RJ-21 connector s on th e rear o f the swi tch label ed “VD SL.
M AKIN G N ETWORK C ONNECTIONS 4-4 Connect ing Twi sted-Pai r Devi ces Each device requires an unshielded twisted-pair (UTP) cabl e with RJ-45 connectors at both ends . Use Categor y 5, 5e or 6 cable for 1000B ASE-T connections , Categ ory 5 or better for 100BASE-TX co nnections , and Categor y 3 o r better for 10BA SE-T connect ions .
C ONNECTING T WISTED -P AIR D EVIC ES 4-5 Connecting to PCs, Ser vers, Hubs and Switches Depending on th e wiring config uratio n use d at the customer’ s s ite , separate wall jacks may be used for telephone and VDSL ser vices. Otherwise, you will need to connect the telep hone and co mputer directly to a CPE similar to that shown below .
M AKIN G N ETWORK C ONNECTIONS 4-6 Connect ing Fibe r Optic Devices An optional SFP transcei ver (1000BAS E-SX, 1000BASE-LX o r 1000B ASE-ZX) can be used for a b ac kbone connection to your I nternet Servi ce Pr ovider , or for conn ecting to a high -speed se r ver .
C ONNECTIVITY R ULES 4-7 3. Connect one en d of the cable t o the LC po r t on the sw itc h and th e other end to th e LC port on the other d evice . Since LC connectors are ke yed, th e cable c an be att ac hed in on ly one o rientati on. Figure 4-5 Making LC Port Connections 4.
M AKIN G N ETWORK C ONNECTIONS 4-8 1000BASE-T Cable Requirements All Catego ry 5 UTP cables that are used for 100B ASE-TX connections should also wo rk for 1000B ASE-T , providing that all four wire pairs are connected.
C ONNECTIVITY R ULES 4-9 100 Mbps Fast Ethernet Cable Length s 10 Mbps Ethernet Cable Lengths Table 4-3 Maximum 1000BASE-LX Gigabit Ethern et Cable Length Fiber Size Fiber Bandw idth Maxi mum Ca ble Lengt h Connector 9/125 micr on single-mode fiber N/A 2 m - 10 km (7 ft - 6 .
M AKIN G N ETWORK C ONNECTIONS 4-10 Cable Labe ling and Con n ect ion Records When plannin g a netw ork installatio n, it is essential to label the opposing ends of cables and to record where each cable is connected.
A-1 A PPENDIX A T ROUBLESHOOTING Diagnosi ng Switch Indic ators This sw itch can be easily monito red through pane l indicators to identify proble ms .
T R OUBLESHOOTING A-2 Ethernet port Link indicator does not light up after maki ng a connection. Network cable or Ethernet device attached to this port may be defective. • Verify that the switch and attached device are powered on. • Be sure an Ethernet cabl e is plugged int o both the switch an d attached device .
P OWER AND C OOLING P RO B LE M S A-3 Power and Cooling Problems If the power indi cator does not tur n on when the power cord is pl ug ge d in, you m a y ha ve a probl em with the po wer outl et, p ow er cord , or int ernal power supply .
T R OUBLESHOOTING A-4 Note: The switch can accept up to fo ur simul taneous T elnet se ssions. If the maximum number o f sessions alre ady exists, an additional Telnet conne ction will not be able to log into th e system.
B-1 A PPENDIX B C ABLES Twiste d-Pair Ca ble and Pin Assignm ents F or 10BASE-T/100B ASE-TX connections, a twisted-pair cable must have two p airs of wires . For 1000B ASE-T connections the twist ed-pair cable must hav e four pairs of wi res . Each wire p air is identi fied by two different color s .
C ABL ES B-2 10BASE-T/100BASE-TX Pin Assign ments Use unshie lded twiste d-pair (UTP) o r shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm Categ or y 3 or better cable for 10 Mbps connections , or 100-ohm Catego ry 5 or better cable for 100 Mbp s connec tions .
T WISTED -P AIR C ABL E AND P IN A SSIGNMENTS B-3 Straight-Through W iring If the twiste d-pair cable is to jo in two ports and on ly one of the por ts has an inter nal cross ov er (MDI-X ), the two pairs of wires mus t be straight- throug h.
C ABL ES B-4 Crossov er Wiring If the t wisted-pa ir cable is to jo in two port s and eithe r both por ts ar e labeled with an “X” (in dicating MDI-X ) or neither port is labeled with an “X” (whic h indicates MDI), a cros sov er mus t be i mplemen ted in the wiring .
T WISTED -P AIR C ABL E AND P IN A SSIGNMENTS B-5 1000BASE-T Pin Assi gnments 1000BASE-T ports switch suppor t automatic MDI/MDI-X operation, so you can us e strai ght-throu gh cables f or all network c onnectio ns to PCs or servers , or to othe r switches or hubs .
C ABL ES B-6 1000BASE-T Cable Requirements All Catego ry 5 UTP cables that are used for 100B ASE-TX connections should also wo rk for 1000B ASE-T , providing that all four wire pairs are connected.
F IBER S TAND ARDS B-7 Fiber Stan dards The cur rent TIA (T elecommunications Industry As sociation) 568-A specification o n optical fiber cablin g consists of on e recognized cabl e type for ho rizontal su bsyst ems and tw o cab le type s for backbo ne subs ystems .
C ABL ES B-8 RJ-21 Port Pi n Assign ments The RJ-21 ports are designed t o ag greg ate 24 POTS/VDS L lines , although only 16 lines are implemente d for this switch. Each wire pair m ust be attac hed to the RJ-21 connector in a specific orient ation de tailed belo w .
C ONSOLE P ORT P IN A SSIGNMENTS B-9 Console Port Pin Assignments The DB-9 seria l port on the s witch ’ s front panel is used t o conn ect to th e switch for out-of -band co nsole co nfigur ation. The on -board comman d- line configur ation program can be acc essed from a t er minal or a PC running a te r minal em ulation prog ram.
C ABL ES B-10 Console Port t o 9-Pin DTE Port o n PC Console to 25-Pin DTE Port on PC Table B-6 Console Port to 9-Pin DTE Port on PC Switch’s 9-Pin Serial Por t Null Mo dem PC’s 9-Pin DTE Port 2 R.
C-1 A PPENDIX C S PECIFICATIONS Physical Characteristics VDSL Specifications Band Pl an: Up to 6 ba nds Signal Bandwidth: 25 kHz to 30MHz Data Rate: Up to 100 Mbps / 100 Mbps (Downstream/Upstream) Ran.
P HYS I CA L C HARACT ERIS TICS C-2 Buffer Ar chitecture 16 Mbytes Aggregate Bandwidth 8.8 Gbps Switchin g Database 8K MA C address entries LEDs System : P owe r, Diag, F ault Po r t : L i n k / A c t We i g h t 2.92 kg (6.44 lb) Size 44.0 x 35.2 x 6.
S PECIFICATIONS C-3 Switch Features F orw arding Mode Store-and-fo rward Throughput La yer 2: wi re speed Flow Co ntro l Full Duplex: IEEE 802.3x Half Duplex: Ba ck pressure Management Features In-Ban.
S TANDA RDS C-4 Standards Ether net Standards IEEE 802.3-2005 Ethern et Access Ethernet, Fast Ethernet, Gig abi t Ethe r net Link A g g regation Cont rol Pro tocol ( LA CP) Full-duplex flow control (ISO/IEC 8802-3) IEEE 802.1D Spanning T ree Protocol IEEE 802.
S PECIFICATIONS C-5 Safety CSA/CUS (CSA 22.2. NO 60950-1 & UL60950-1) CB (IEC60950-1).
C OMPLIANCES C-6.
D-1 A PPENDIX D O RDERING I NFORMATION Table D-1 TigerAccess EE Products and Accessories Product Numb er Description SMC7816M/VSW 16-Port VDSL2 Switch with 2 combo Gigabit Ethernet uplink por ts (RJ-4.
O RDERING I NFOR MATION D-2.
Glossary-1 G LOSSARY 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet ov er tw o pairs of Categor y 3, 4, or 5 UTP cable . 100BASE-TX IEEE 802.3u specification for 100 Mbps F ast Ethernet ove r two pa irs of Categor y 5 UTP cable . 1000BASE-LX IEEE 802.
G LOSSAR Y Glossary-2 Bandwidth The differ ence bet ween t he hi ghest a nd low est frequ encies ava ilable f or network signals. Also sy nonymou s with wire speed, the actua l speed of the data transmi ssion alo ng the cable . Collis ion A condit ion in whic h packe t s tr ansmitt ed ov er the cabl e inter fere with each other .
G LOSSAR Y Glossary-3 Fast Ethernet A 100 Mbps network comm unication system based on Ethernet and the CSMA/CD access method. Fibre To The Home (FTT H) Network wher e an op tical fibre r uns from the tele phone sw itch to the subscr iber's premises or home .
G LOSSAR Y Glossary-4 IEEE 802.3x Defin es Ethernet fram e st art/sto p reques ts and timers use d for flow control on full-duplex links . (Now incorporated in IEEE 802.3-2005.) IEEE 802.3z Defines CSMA/CD acce ss metho d and ph ysical la yer specificat ions for 1000B ASE Gig abit Ether net.
G LOSSAR Y Glossary-5 Media Access Control (MAC) A portio n of the netw orki ng prot ocol that g o ve r ns acces s to t he transmission medium, facilitating the exch ange of data between network nodes.
G LOSSAR Y Glossary-6 TIA T elecommunications In dustr y Association Transmission Control Protocol/Internet Protocol (TCP/IP ) Proto col suite t hat inc ludes TCP as the pr imar y trans por t prot ocol, an d IP as the netw ork la yer protoc ol. User Datagra m Protocol (UDP) UDP pro vides a d atag ram mode for pa ck et-swi tche d communica t ions .
G LOSSAR Y Glossary-7 Virtual LAN (VLAN) A Virtual L AN is a co llectio n of netw ork nodes th at share the same collision domain reg ardless of their physical location or c onnection point in the ne twork.
G LOSSAR Y Glossary-8.
Index-1 Numerics 10 Mbps connect ivity rules 4-9 100 Mbps connectivity ru les 4 -9 1000 Mbps connectivity rules 4-8 1000BASE-LX connections 4-6 fiber cable le ngths 4-9 1000BASE-SX connections 4-6 fib.
I NDE X Index-2 H hardware components 1-5 hardware, basi c description 1-5 I IEEE 802.3 Ethernet 1-12 IEEE 802.3- 2005 1-12 IEEE 802.3u Fast Ethe rnet 1-1 2 IEEE 802.
I NDEX Index-3 rubber foot pads, at taching 3-7 S SC port connection s 4-6 screws for rack mounting 3-5 SFP slots 1-7 supported transc eivers 1-7 single-mode fi ber optic cables 4-6 site req ui rem en.
I NDE X Index-4.
.
20 Mason Irvine, CA 92618 Phone: (9 49) 679-8000 Model Numbers: SMC7800A/VCP Pub. Number: 149 100012100 H E02200 7/ST -R01 FOR TECHNICAL SUPPOR T , CALL: From U.S.A. an d Canada (2 4 hours a day , 7 da ys a week) (800) SMC-4-YOU; (94 9) 679-8000; F ax: (949 ) 679-1481 Fro m Euro pe: Cont act deta ils can be found on www .
Een belangrijk punt na aankoop van elk apparaat SMC Networks VDSL2 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen SMC Networks VDSL2 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens SMC Networks VDSL2 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding SMC Networks VDSL2 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over SMC Networks VDSL2 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van SMC Networks VDSL2 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de SMC Networks VDSL2 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met SMC Networks VDSL2 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
