SMC NetworksメーカーSMC7824M/ESWの使用説明書/サービス説明書
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T igerAccess ™ 10/100 F ast Ether net Switch ◆ 24 10/100B ASE-TX ports ◆ 2 10/100/1000 B ASE-T po rts shared with SFP slots ◆ 2 module s lots for Gigab it extender modul es ◆ Non-blocking sw.
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38 T esla Irvine, CA 9261 8 Phone: (9 49) 679-80 00 T igerAccess ™ 10/100 Installation Guide From SM C’ s T iger line of feature-r ich work group LAN solutions Janu ary 2 007 Pub.
Information fu rnished by SM C Netw orks , Inc . (SMC) is belie ved t o be accur ate and r eliable . Ho weve r, no respon sibility is assumed by SM C for its use, nor for any inf ring ements o f patents or other righ ts of third par tie s whi ch may resul t fr om i ts u se.
v L IMITED W ARRANTY Limited W ar ranty Statement: SM C Networks, Inc. (“SMC ”) war rant s its pro ducts to be free from defects in wor kmanship and materials , under normal use and service, for the applicable warranty term .
vi WARRA NTIE S EXCLUSIV E: IF AN SMC PR ODUC T DOES N OT OPERATE AS W ARRANTED ABO VE, CUSTOMER’S SOLE REMED Y SHALL BE REP AIR OR REPLA C EMENT OF THE P RODUCT IN Q UESTION , AT SMC’S OPTION .
vii C OMPLIANCES FCC - C lass A This equipment has been tested and found to comply with the lim its fo r a Clas s A di gital device, pursuant to part 15 of the FCC Rules . T hese limits are designed to provide reasonable protection against har mful interference when the equipment is operated i n a commercial envir onment.
C OMPLIANCES viii CE Mark Declaratio n of Confor mance for EMI and Safety (EEC) SMC contact for these products i n Europe is: SMC Networks Europe , Edif icio Co nata II, Calle Fr uctuó s Ge labert 6-8, 2 o , 4 a , 08970 - Sant J oan Despí, Barcelona, Spain.
C OMPLIANCES ix Australia AS /NZS 3548 (1995) - Clas s A SMC contact for product s in Austr alia is: SMC Communicati ons Pty . Ltd. Suit e 1 8, 12 Tryon Road, Lindfield NSW2070, Phone: 61-2-94160437 F.
C OMPLIANCES x Power Cord Safety Please read t he followi ng safety informat ion caref ully befo re installing the switc h: Wa r n i n g : Installation and remo val of the unit must be carried out by qualified personnel only . • The unit must be connec ted to an earthed (grounded) outlet to c omply with international safety s tandards.
C OMPLIANCES xi Veuillez lire à fond l'information de la sécurité sui vante avant d'installer le Switch: A VERTISSEM ENT : L ’installation et la dépos e de ce groupe doiv ent être confiés à un personnel qualifi é.
C OMPLIANCES xii Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicherheitsanweisungen durchlesen: W ARNUN G: Die Installation und der Ausbau des Geräts d arf nur durch F achpersonal erfolgen. • Das Gerät sollte nicht an eine un geerde te Wechs elstromst eckdose angeschlo ssen werd en.
C OMPLIANCES xiii W ar nings and Caut ionar y Me ssages Wa r n i n g s (in German) Warni ng: This product does not contai n any serviceable u ser parts.
C OMPLIANCES xiv Environmental Statement The manufacturer of this product endeav ours to sustain an envi ronmentally-friendly poli cy throughout the entire production process . This is achiev ed t hough the f ollowing means: • Adherence to national legis lation and regulations on envi ronmental production standards.
xv T ABLE OF C ONTENTS 1 About the TigerAccess Switch . . . . . . . . . . . . . . . . . . . 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Switch Ar chitectur e . . . . . . . . . . . .
T ABLE OF C ONTENTS xvi Optional Rack-Mount ing Equipme nt . . . . . . . . . . . . . . . . . . . . . 3-3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Rack Mount ing . . . . . . . . . . .
T ABLE OF C ONTENTS xvii A PPEN DICES : A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Diagnosing Sw itch Indic ators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A -1 Power and C ooling Prob lems .
T ABLE OF C ONTENTS xviii E Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . E-1 Glossary Index.
xix T ABLES Table 1-1 Optiona l SFP Transceive rs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 1-2 Port and Sy stem Status LE Ds . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Table 3-1 Serial Ca ble Wiring . . . . . . . . .
xx F IGURES Figure 1-1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Figure 1-2 Port and System LED s . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Figure 1-3 Fan Tray . . . . . . . . . . . . . . .
1-1 C HAPTER 1 A BOUT THE T IGER A CCESS S WITCH Overview The Tig erAccess 10/100 is an intelligen t Layer 2 switch with 24 10/100B A SE-TX ports for subscriber access to the data n etwork, tw o Gig abit Et her net co mbinatio n por ts * fo r uplink traffic .
A BOUT THE T IGE R A CCES S S WITCH 1-2 Figure 1-1 Front Panel Switch Architecture This sw itch employs a wire-speed, non-b locking switching fabric. This per mits simultaneo us wire-speed tran spor t of multiple packets at low latency on all port s .
D ESCRIPTION OF H ARDW AR E 1-3 conne ction (in- band) u sing T elnet, the o n-boar d web age nt, or SNMP-bas ed netw ork managem ent sof tware . The managem ent port (RJ- 45) pro vides a dedicat ed management chan nel that oper ates outs ide of the da ta transpor t ne twork.
A BOUT THE T IGE R A CCES S S WITCH 1-4 This po rt suppor ts a uto-ne go tiation, so the opti mum transmiss ion mode (half or full duplex) and d ata rate (10 or 100 Mbps) can be selected automatically , if this feature is also suppor ted by the attached device.
D ESCRIPTION OF H ARDW AR E 1-5 Alarm Interface Po rt The DB-15 alarm por t on t he switc h’ s fron t panel can be u sed to pro vide alarm, ser vice port, and BI TS cloc k reference interfaces . The switch suppor ts two sets of alar m relay con tacts (ma jor and mino r), and 4 ex ter nal customer sit e alar m inputs .
A BOUT THE T IGE R A CCES S S WITCH 1-6 Table 1-2 Port and System Status LEDs LED Condition Status Major Red Indicates pres ence within the syste m of one or more major traffic-affectin g system alarm( s) that ar e not m asked by th e al arm filter.
D ESCRIPTION OF H ARDW AR E 1-7 Fan Tray A remo va ble fan tray o n the right s ide of th e front pan el contai ns three fans that provide cooling for the chassis.
A BOUT THE T IGE R A CCES S S WITCH 1-8 Power Modules This sw itch provides two pow er module o ptions: -48 VD C and univ ersal A C. For s pecif icati ons on the power conv ersion mo dules and exte rnal input p ower requi rement s, see “Pow er Suppl y” on p age C-2 .
O PTIONAL M EDIA E XTENDE R M ODULE 1-9 Option al Medi a Extend er Module 1000BASE Combo Module Figure 1-5 Single-Port 1000BASE-T/SFP Combo Mo dule The 1000BASE-T RJ-45 port and SFP slot on this module share the same internal interface .
A BOUT THE T IGE R A CCES S S WITCH 1-10 Featur es an d Benefit s Connectivity • 24 100BA SE-TX ports for 10 or 100 Mbps Ethernet conn ections to subscr ibers.
F EATURES AND B ENEFITS 1-11 • Switching table with a total of 16K MAC address entries a nd 1K sta tic addr esses. • Provides store-an d-forward switch ing for intra-V LAN traffic. • Supports wire-sp eed swi tching . • Suppor ts flow contro l, usin g back p ressu re for ha lf dup lex an d IEEE 802.
A BOUT THE T IGE R A CCES S S WITCH 1-12.
2-1 C HAPTER 2 N ETWORK P LANNING Introd uction to Swit ching A network switch allows s imultaneous transmissio n of multiple packe ts via non-cros sbar switching . This me ans that it can par tition a netw ork more effici ently th an brid ges or rout ers .
N ETWORK P LANNING 2-2 Collapsed Backbone This sw itch is an exc ellent choice for mix ed Ether net, Fast Ether net, and Giga bit Ether net i nstallations whe re significan t gr owth is expected in the near future.
A PPL ICAT ION E XAM PLES 2-3 Network Aggregation Plan With 28 paralle l bridging por ts (i.e., distin ct collision d omains), this s witch can col lapse a complex netwo rk down into a single efficien t bridged node , incre asing overall band widt h and thr oug hput.
N ETWORK P LANNING 2-4 Remote Connections with Fiber Cable Fiber op tic t echnolog y allows f or long er ca bling than any other media ty pe. A 1000BASE-SX (MMF) link can connect to a s ite up to 550 meters awa y , a 1000B ASE-LX (SMF) link up to 10 km, and a 1000BASE-ZX link up t o 70 km.
A PPL ICAT ION E XAM PLES 2-5 Making VLAN Connections Th ese swit ches sup por t VLA Ns which c an be us ed to or ga nize any g rou p of net w ork n odes int o sepa rate br oadcas t domain s . VLANs c onfine broadc ast traffic to th e originat ing g roup , and can e liminat e broadcas t stor ms in larg e networks.
N ETWORK P LANNING 2-6 Applicati on Not es 1. Full-duplex operation on ly applies to point -to-point access (such as when a switc h is attached to a w orkstation, ser v er or another switch). When the switc h is con nected t o a hub , both device s mus t opera te in half-duplex mode.
3-1 C HAPTER 3 I NSTALLING THE S WITCH Selecting a Site TigerAccess 10/100 units can be mounted in a standard 19-inc h equipment rack or on a flat surface. Be sure to follo w the guidelines be low when c hoosing a locat ion. •T h e s i t e s h o u l d : - restri ct access t o author ized ser vice pers onnel in accordanc e with IEC 60950-1.
I NS TAL LI NG THE S WITCH 3-2 is rec ommen ded. Th is sw itch p rovid es two power m odule option s: -48 VDC and univers al AC. Ve rify that the exter nal po wer requi rements for the selected option can be met as list ed under “ Power Sup ply” on page C-2 .
E QUIPMENT C HECKLIST 3-3 Equipm ent Checkl ist After u npacking the TigerAcces s 10/100 unit , chec k the co ntents to be sure you h ave received al l the comp one nts. Then, be fore beginni ng the installation, be sure you hav e all othe r necessar y installation equipm ent.
I NS TAL LI NG THE S WITCH 3-4 Mountin g A TigerAccess 10/100 unit can be mounted in a standard 19-inch equipmen t rac k or on a deskto p or shel f. M ounting i nstructions fo r each type of si te follow .
M OUNTING 3-5 2. Mount the device in the r ack, using four rack-mou nting scre ws (not provided ). Figure 3-3 Installing the Switch in a Rack 3. If installing a single switch only , tur n to Grounding t he Chassis at the end of t his c hapter . 4. If installing multiple swit ches , mount them in the rack, one below the other, in any or der.
I NS TAL LI NG THE S WITCH 3-6 Desktop or Shelf Mounting 1. Attach the fou r adhesive feet to the b ottom of the first swit ch. Figure 3-4 Attaching the Adhesive Feet 2. Set th e device on a flat surface nea r an external po wer source , making sure there are at least two inches of space on all sides fo r proper air flo w .
I NSTALLING AN O PTIONAL M ODULE INTO THE S WITCH 3-7 Installi ng an Optional Module into the Switch Figure 3-5 Install ing an Optional Module Note: The slide -in modu les ar e hot-s wappable , yo u do no t need to power off the switch before installing or removing a module.
I NS TAL LI NG THE S WITCH 3-8 5. If y ou are s ure the m odule is p roperly mated wi th the co nnector , tighten t he retaine r screws to secure th e module in the slot.
G RO U ND I N G THE C HASSIS 3-9 Notes: 1. SFP transceiver s are hot -swappab le. The swit ch does n ot need to be powered off before insta lling or removing a transc eiver. However , always fir st disco nnect the networ k cable befor e removing a transceiver.
I NS TAL LI NG THE S WITCH 3-10 Connect ing to a Power Source Th is switch su ppor ts bo th A C and DC power conversion mod ules. Connecting DC Po wer When a -48 VDC power conversion module is installed in the switch, an external DC po wer s upply m ust be conn ected to the DC pow er conne ction on the le ft side of the front panel.
C ONNECTING TO A P OWER S OUR CE 3-11 T o connect the swi tch to a pow er source: 1. First verify that t he ex terna l DC power supply ca n provide -36 to -72 VDC, 4 A minimum fo r the -48 VDC power conversion mod ule. 2. Pre par e two wires fo r each power s ource to be us ed (A or B).
I NS TAL LI NG THE S WITCH 3-12 Figure 3-7 DC Plug Connections 7. Push each wire about half an inch into the opening on the plug, and tighten d own the clam p screw secure ly . Y ou sh ould no t be able to pull on the wi re and dislod ge it. 8. Insert th e pow er plug in the p ower receptacle on the left side o f the front pa nel.
C ONNECTING TO A P OWER S OUR CE 3-13 Connecting AC Power When a universal A C power module is installed in t he switch, exter nal A C power must be sup plied to the module. T o connect the swi tch to a pow er source: 1. First verify that t he ex terna l A C power supply ca n provide 100 to 240 V AC , 50-60 Hz , 2 A minimum.
I NS TAL LI NG THE S WITCH 3-14 5. If you have insta lled bot h a prima r y and redunda nt power co nversion modules, v erify that the LEDs on both modules are lit as indicated in the pr eceding s tep .
C ONNECTING TO THE A LAR M P ORT 3-15 The serial port’ s configuration requirements are as follo ws: • Default Baud rate—9,600 bps • Cha ract er Si ze—8 C har acte rs •P a r i t y — N o .
I NS TAL LI NG THE S WITCH 3-16 Wiring Map for Alarm Cable Th e sig nals in clud e re lay co ntacts fo r major and minor system alarms, and external alar m inputs . Table 3-2 Alarm Cable Wiring Switch’s Alarm Port Function 1 (MJR_ALARM_CNTR) Common contact for major alarm relay.
C ONNECTING TO THE A LAR M P ORT 3-17 The following figure shows the pinout inform ation for the DB-15 ALARM connec tor on t he fro nt pane l. Figure 3-11 Externa l Alarm I/O Connections 1 11 6 2 12 7.
I NS TAL LI NG THE S WITCH 3-18.
4-1 C HAPTER 4 M AKING N ETWORK C ONNECTI ONS Connect ing N etwork Devi ces The Tig erAccess 10/100 switch is designed to interconnect multiple segments ( or collision dom ains). It can be connecte d to network cards in PCs and servers , as well as to hubs , switc hes or router s .
M AKIN G N ETWORK C ONNECTIONS 4-2 Caution : Do not plug a phone ja ck conne ctor into an RJ-45 por t. Thi s will damage the switch. Use only twisted-pair cabl es with RJ-45 connec tors th at co nform to FCC s tandar ds . Connecting to PCs, Ser vers, Hubs and Switches 1.
T WISTED -P AIR D EVIC ES 4-3 Network Wiring Connections T oday , the punc h-down b lock is an in tegral part of many of the n ewer equip ment racks. It is actually par t of the patch pan el. Instr uction s for making connec tion s in the wi ring clo set w ith this type of eq uip ment follows .
M AKIN G N ETWORK C ONNECTIONS 4-4 Fiber Optic SFP Devices An optional Gigabit SFP transceiv er (1000BASE-SX, 1000B ASE-LX or 1000B ASE-ZX) can be used for a backbone connectio n between switches , or for co nne cting to a high-sp eed ser ver.
F IBER O PTIC SFP D EVIC ES 4-5 will impair the quality of the light transm itted th rough the cab le and lead to deg rade d per for ma nce on the por t. 3. Connect one en d of the cab le to the LC port on the switc h and the other end to the LC port on the ot her device .
M AKIN G N ETWORK C ONNECTIONS 4-6 Connect ivity Rule s Whe n adding hubs (r epe aters ) to your ne twork, pleas e follow the connec tivit y r ules li sted in the man uals for these pro ducts .
C ONNECTIVITY R ULES 4-7 100 Mbps Fast Ethernet Cable Length s 10 Mbps Ethernet Cable Lengths Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidt h Maximum Cab le Length Connector 9/125 micr on single-mode d uplex fiber N/A 2 m - 10 km (7 ft - 6.
M AKIN G N ETWORK C ONNECTIONS 4-8 Cable Labe ling and Conne ction Recor ds When plannin g a network installation, it is essent ial 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 Indicato rs This sw itch can be easily mo nitored through p anel indica tors to identify problems. The table below desc ribes c ommon probl ems you may encounte r and possible so lutions.
T R OUBLESHOOTING A-2 Link LED is Off Network cab le or Ethernet devic e attached to this port may be defecti ve. • Verify that the switch and attached device are powere d on. • Be sure the cable is pl ugged into both the switch and corresponding device.
P OWER AND C OOLING P RO B LE MS A-3 Power and Cooling Problems If the power indi cator doe s not tur n on when the power cord is plug ge d in, you m ay ha ve a p roblem wit h the p ow er outl et, po wer c ord, or internal power supply .
T R OUBLESHOOTING A-4.
B-1 A PPENDIX B C ABLES Twiste d-Pair Ca ble and Pin A ssignments F or 10/10 0BASE-TX co nnectio ns, the twisted -pair cab le must have two pairs of wires . F or 1000B ASE-T connections the twist ed-pair cable m ust have four pairs of wires . Each wi re pair is identified by two di fferent colo rs .
C ABL ES B-2 10BASE-T/100BASE-TX Pin Assign ments Use unshielde d twisted-pair (UTP) or s hielded twiste d-pair (STP) cable for RJ-45 connections: 100-ohm Categ or y 3, 4 or 5 cable for 10 Mbps connections or 100-ohm Categor y 5 cable for 100 Mbps connections .
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 join two ports and only one of th e por ts has an inter nal cr ossover (MDI-X), th e two pairs of wires must be strai ght-thr ough.
C ABL ES B-4 Crossov er Wirin g If the t wisted-p air cable is to join two por ts and either both por ts a re labeled with an “X” (M DI-X) or neit her por t is labeled with an “X” (MDI), a crossover must be imple mente d in the wi ring .
T WISTED -P AIR C ABL E AND P IN A SSIGNMENTS B-5 1000BASE-T Pin Assi gnments All 1000B ASE-T ports support automati c MDI/MDI-X operation, so y ou can use strai ght-t hrough cab les for all netw ork connect ions to PCs or servers , or t o othe r switc hes or hubs .
C ABL ES B-6 1000BASE-T Cable Requirements All Catego ry 5 UTP cables that are used for 100B A SE-TX connections should also wo rk for 1000B A SE-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 Industr y Association) 568-A specification o n optical fiber c abling consist s of one recogn ized cable ty pe for ho rizonta l subsy stem s and two cabl e type s for back bone su bsyste ms .
C ABL ES B-8.
C-1 A PPENDIX C S PECIFI CATIO NS Physical Chara cteristics Po r ts 24 Fa st Ethernet subscri ber ports (RJ-45) 2 Giga bit Ether net combination uplin k por ts (RJ-45/SFP) 2 Gigabit Ether net extender.
P HYS I CA L C HARACT ERIS TI CS C-2 Aggregate Bandwidth 12.8 Gbps Switchin g Database 8K MA C address entries , 1K static M A C addresses; 64 multicast g roups LEDs System: P ower Module (-48/+12 VDC, A C/+12VDC), Al ar m (Major, Mi n or, Fa n Fa i l ), D i agnostics P or t: Status (link, acti vity) We i g h t 1.
S PECIFICATIONS C-3 Maximum Cur r ent 1.20 A @ -38 V DC (with t w o expansi on modules) 0.60 A @ -75 V DC (with t w o expansi on modules) 0.59 A @ 110 V A C (with two expansion modules) 0.36 A @ 240 V A C (with two expansion modules) Switch Features F orwa rding Mode Store-and-fo rward Throughput Wire speed Flow Co ntrol Full Duplex: IEEE 802.
S TANDA RDS C-4 Standards IEEE 802.3-2005 Ether net , Fast Ether ne t, Gig abit E ther net Link A g g regation Con trol Protoco l (LA CP) Full-duplex flow control (ISO/IEC 8802-3) IEEE 802.1D Spanning T ree Protocol IEEE 802.1w Rapid Span ning T ree Protocol IEEE 802.
S PECIFICATIONS C-5 Safety CSA/CUS (CSA 22.2. NO 60950-1 & UL60950-1) TÜV/GS (EN60950-1) CB (IEC60950-1) Extend er Modul es Giga bit Ex tend er Mo dule (RJ-45/SFP) Po r ts 1 10/100/1000B ASE-T RJ-45/SFP combo port Communication Speed 1 Gbps Communication Mode Full duplex Network Interface RJ-45/SFP slot Standards IEEE 802.
E XTENDE R M ODULES C-6.
D-1 A PPENDIX D G ERMAN I NSTRUCTIONS Eine Site Auswählen (Selecting a Site) Die Schalter können in ein Standard-19-Zoll-Ausr üstungsg estell od er auf eine flach e Ebene mo ntiert wer den. Zum Ausw ählen e ines Stand orte s beac hten Sie bi tte die n ach stehen den Richtlinien .
G ER MAN I NSTRUCTIONS D-2 • Si che rstel len, d ass da s Ger at an eine sepa rate Stro mqu elle m it Erdanschlus mit einer Netzspannung von 100 bis 240 V AC (Wechse lstro mspann ung), 50 bis 60 Hz, und inner halb in ein em Abstand von 2,44 m (8 Fus) zu jedem Gerat installiert wird und on einem se paraten Tr ennsc halter bz w.
D AS E RDEN DES G EHÄUSE S (G RO U N D I N G THE C HASS IS ) D-3 So monti eren Si e Geräte an ein Ra ck: 1. Befestig en Sie die Metallwinkel mit den im Metallw inkel-Montageset erhältliche n Schraube n an de m Gerät. 2. Be festi gen Sie d as Ge rät mi t vier Rackmo ntag eschr aube n (nicht beig ele gt) an dem Rack.
G ER MAN I NSTRUCTIONS D-4 5. Dan n schl ießen Sie das Erdungsk abel an de n Erdungs punkt des R acks an. Vorsi cht : Die Erd ungsv erbin dungen dürfen nic ht entf ernt werden, es sei denn, alle V e rbindung en zu den Stromquellen sind abgezog en.
A NS CHL USS AN EINE S TR OMQUELLE (C ONNECTING TO A P OWER S OURCE ) D-5 Plug Connec tions” auf Seite 3- 8 be schriebe n sind , erfüllt sind. Die Drähte so llten auch gemäß der ör tlichen Nor me n gefärbt se in, um sicherzustelle n, dass die Strom eingangskabel und die Er dungsdr ähte lei cht untersc hieden w e rden k önnen.
G ER MAN I NSTRUCTIONS D-6 RET A/B (R eturn) Leitungen fü r die St romquell en A bzw . B ben utzt. Ben utzen Sie einen Fla chk opfsc hraubendr eher , um die Sch rauben de s Stecker s zu lö sen u nd öff nen Sie di e Dr ahtkla mm er n. 6. Fügen Sie die V erbindungs leitungen i n die Öffnu ngen, wie im unt eren Bild gezeig t, ein.
A NS CHL USS AN EINE S TR OMQUELLE (C ONNECTING TO A P OWER S OURCE ) D-7 Stromsc halter auf der V orderseite des Stromwandlun gsmodule auf AN (mit “–” ma rkier t). 11. Überprüfen Sie di e Anzeigen auf d en Stromw andlungsm odulen, w enn der Sch alter angesc haltet ist, um sicherz ugehen, das s die -48V bzw .
G ER MAN I NSTRUCTIONS D-8 Figure D-2 Wechselstroma nschluss 4. W enn der Switc h angesch altet i st, überprüfen Sie die Anzeigen de s Stromm oduls, um sicherz uge hen, da ss sowohl die W echselstr om LE D , die den ex ter nen Stromsta tus anze igt, als auch d ie +12V LED , die d ie inter n e Str omwand lung anzei gt, l euchte t.
E-1 A PPENDIX E O RDERING I NFORMATION Table E-1 TigerAccess 10/100 Products and Accessories Product Numb er Description SMC7824M/ESW 24-Port F ast Ethernet Switch with 2 co mbo Gigabit Ethernet uplin.
O RDERING I NFOR MATION E-2.
Glossary-1 G LOSSA RY 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet ov er two pairs of Categor y 3, 4, or 5 UTP cable . 100BASE-TX IEEE 802.3u specification for 100 Mbps F ast Ethernet over tw o pairs of Category 5 or be tter U TP cabl e. 1000BASE-LX IEEE 802.
G LOSSAR Y Glossary-2 Bandwidth The differ ence betw een th e high est and low est frequ encies av aila ble for network signals. Also sy nonymo us with wire spe ed, the a ctual s peed o f the data trans miss ion al ong t he cab le . Collis ion A condit ion in w hic h pack ets tr ansmitt ed ov er the cable int erfere with each other .
G LOSSAR Y Glossary-3 Full Duplex T ran smission me thod th at allows two network devices t o transmit a nd recei v e concurrently , effecti vely doublin g the b andwid th of that link. Gigabit Ethernet A 1000 Mbps network comm unication system based on Ethernet and the CSMA/CD access method.
G LOSSAR Y Glossary-4 Local Area Network (LAN) A group of in terconn ected comp uter and support devices . Media Access Control (MAC) A portio n of the netw orking pr otoc ol that g o verns a ccess t o the transmission medium, facilitating the exchange of data between network nodes.
G LOSSAR Y Glossary-5 Transmission Control Protocol/Internet Protocol (TCP/IP ) Proto col suit e that in clud es TCP a s the pr imar y tra nspor t protoc ol, and I P as the netw ork la yer prot ocol.
G LOSSAR Y Glossary-6.
Index-1 Numerics 10 Mbps connect ivity rules 4-7 100 Mbps connectivity ru les 4 -7 1000 Mbps connectivity rules 4-6 1000BASE combo module 1-9 1000BASE-LX fiber cable leng ths 4- 7 1000BASE-SX fiber ca.
I NDE X Index-2 fiber cables 4-4 duplex fiber 4-4 multimode 4-4 simplex fiber 4-4 single mode 4-4 full-duplex co nnectivity 2-1 I IEEE 802.3 Ethernet 1-10 IEEE 802.
I NDEX Index-3 R RJ-45 port 1- 3 connections 4-1 pinouts B-5 rubber foot pads, at taching 3- 6 S screws for rack mounting 3-3 serial port, manage ment port 1-4 SFP slots 1-4 supported transc eivers 1-.
I NDE X Index-4.
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38 T esla Irvine, CA 92618 Phone: (9 49) 679-8000 FOR TECHNICAL SUPPOR T , CALL: From U.S.A. an d Canada (2 4 hours a day , 7 days a week) (800) SMC-4-YOU; (94 9) 679-8000; Fax: (949) 679-1481 Fro m Euro pe: Contac t de tail s can be fo und o n www .smc-europ e.
デバイスSMC Networks SMC7824M/ESWの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
SMC Networks SMC7824M/ESWをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはSMC Networks SMC7824M/ESWの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。SMC Networks SMC7824M/ESWの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。SMC Networks SMC7824M/ESWで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
SMC Networks SMC7824M/ESWを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はSMC Networks SMC7824M/ESWの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、SMC Networks SMC7824M/ESWに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちSMC Networks SMC7824M/ESWデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
