-
Accton Technology VM2548 - page 1
VDSL Switch-VS2512A VDSL Splitter -VM2524 VDSL Splitter -VM2548 Installation Guide ...
-
Accton Technology VM2548 - page 2
...
-
Accton Technology VM2548 - page 3
Installation G uide VDSL Switch-VS251 2A VDSL Sw itch sup porting 12 V DSL Lines, wi th 1 Slot for Optional Gi gabit Uplink , 10/100BASE -TX, or 100B ASE-FX Mo dules VDSL S plitter -VM2524 VDSL Splitter sup porting 24 VDSL Lines VDSL S plitter -VM2548 VDSL Splitter sup porting 48 VDSL Lines ...
-
Accton Technology VM2548 - page 4
Accton is a tradema rk of Accton T echn ology Corpo ration. Oth er tradem arks or bran d names m entioned herein are tradem arks or re gistered tra demarks of th eir respect ive companies. Internation al Headquarter s No. 1 Creatio n Road III, Science-based Industr ial Park Hsinchu 300, T aiwan Phone: +886- 3-5770- 270 Fax: +886-3-5 770-267 Interne ...
-
Accton Technology VM2548 - page 5
Accton T echnology Corporation Limited W arr anty: Accton warrants a ll its products to be free o f manuf acturing d efects in workm ans hip and mate ria ls, un der norma l u se an d se rvi ce, for th e ap pli cab le w arra nty term. All Accton products c arry a standard 90-da y limited wa rranty from the da te of purcha se from Acct on or its Auth ...
-
Accton Technology VM2548 - page 6
Limited Wa rranty W ARRANTIES EXCLUS IVE: IF AN ACCT ON PRODUCT DOES NOT OPER A TE AS W ARRANTED ABOVE , CUST OMER'S SOLE REMEDY SHALL BE REP A IR OR REPLACEMENT OF THE PRODUCT IN QUESTION, A T ACCTON’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND A RE IN LIEU OF ALL OTHER. WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EIT ...
-
Accton Technology VM2548 - page 7
i Compliance s FCC - Class A This equipment generates, uses, and can r adiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been teste d and found to comply with the limits for a Class A computing device pursuant to Subpart B of Pa rt 15 of FCC ...
-
Accton Technology VM2548 - page 8
ii CE Mark Declaration of Conformance for EMI and Safe ty (EEC) This information technology equipment compli es with the requirements of the Council Directive 89/336/EE C on the Approximation of t he laws of the Member S tates relating t o Electromagnetic Compatibility and 73 /23/EEC fo r electrical equipment used within certain voltage limits and ...
-
Accton Technology VM2548 - page 9
iii Safe ty Co mplia nce Warning: Fib er Optic Port Safety Avertissmen t: Ports pour f ibres optiques - sécurité sur le plan optique Warnhin weis: Fase roptikans chlüsse - O ptische Sich erheit Underw riters Labo ratories C ompliance Statement Important! Before making connec tions, make sur e you have the c orrect cord set. C heck it (read the l ...
-
Accton Technology VM2548 - page 10
iv Wichtige Si cherh eitshinweise (G erma ny) 1. Bit te lesen Sie diese Hinweise s orgfälti g durch. 2. Heben Sie die se Anleitung fü r den spätere n Gebrauc h auf. 3. V o r jedem Rei nigen ist das Ger ät vom S tromn etz zu tr ennen. V erwenden Sie kein e Flüssigod er Aeros olreiniger . Am besten ei g net sic h ein angef euchte tes T uch zur R ...
-
Accton Technology VM2548 - page 11
v Contents Cha pter 1 : Abou t the V DSL Sw itch- VS251 2A 1-1 Overv iew 1-1 VDSL Techn ology 1-2 Switch Archite cture 1-3 Manage ment O ption s 1-3 Description of Hardware 1-4 VDSL Switch-VS2512 A 1-4 VDSL Splitte r-VM2524 and VDSL Splitter-VM2 548 1-5 Ethernet-over- VDSL CPE 1-6 Status LEDs 1-7 Option al Media Extend er Modu les 1-8 Power Su pply ...
-
Accton Technology VM2548 - page 12
Contents vi Appendix A: Trou bleshoo ting A-1 Diagn osing Sw itch Indi cators A-1 Power an d Cooli ng Problem s A-1 Install ation A-2 In-Band Ac cess A-2 Appendix B: Cab les B-1 Specific ations. B-1 Twisted-Pa ir Cable and Pin Assignm ents B-1 10BASE-T/10 0BASE-TX Pin Assignments B-2 1000BASE-T Pin Assign ments B-3 1000BASE-T Cabl e Requirements B- ...
-
Accton Technology VM2548 - page 13
1-1 Chapter 1 : About the VD SL S witch-VS2512 A Overview Accton’s Ethe rnet-over-VD SL system cons ists of end-user C PEs (Customer Premise Equipment) c onnected to a VDS L switch and splitter b y standard tele phone cable. The VD SL connect ion delivers an Ethernet data link rat ed up to 15 Mbps sym metric (full dupl ex), while sim ultaneously ...
-
Accton Technology VM2548 - page 14
About the VDSL Switch- VS2512A 1-2 VDSL Technology VDSL (V ery High Bit-Ra te Digital Subscriber Line ) is at the high-end of all the DSL technolog ies, offering the best combina tion of fiber optics and copper to provide high-spee d broadba nd Internet acce ss. VDSL ’s primary applica tion is in providing a broadba nd data service to multi-tenan ...
-
Accton Technology VM2548 - page 15
Ov ervi ew 1-3 Switch Archi tecture The VDSL Sw itch-VS25 12A employ s a wire-speed, non-blockin g switching fabr ic. This perm its simultaneou s wire-speed t ransport of multiple pack ets at low latenc y on all ports. T his switch a lso feat ures full-du plex capability on all por ts, which effecti vely doubles the bandwidth of ea ch connection . ...
-
Accton Technology VM2548 - page 16
About the VDSL Switch- VS2512A 1-4 Traffic Priority This switc h provides Qu ality of Service (Qo S) by prioriti zing each packet ba sed on the requ ired level of servi ce, using fou r distinct catego ries with Weighte d Round Robin Queuing. It uses IEEE 80 2.1p and 802.1Q tags to prioritize incoming traffi c based on i nput from the end -station a ...
-
Accton Technology VM2548 - page 17
Descripti on of Hardware 1-5 The s wit ch al so incl udes key sys tem and po rt indi ca tors th at si mpli fy inst al lat ion and network troubleshoo ting. The front panel has LE Ds for Ethernet link status/activi ty and VDSL link st atus, as w ell as system st atus indic ators. The follow ing figure shows t he componen ts of the VDSL Switch. Figur ...
-
Accton Technology VM2548 - page 18
About the VDSL Switch- VS2512A 1-6 The follow ing figures show s the compone nts of the VDSL S plitter -VM2524 and VDSL S plitter-VM2548. Figure 1-3. VD SL Splitter-VS2524 Fr ont and Rear Pane ls Figure 1-4. VD SL Splitter-VS2548 Fr ont and Rear Pane ls Ethe rne t-ov er-V DSL CP E The S plitter-VM2 524 and S plitter-VM 2548 are des igned to connec ...
-
Accton Technology VM2548 - page 19
Descripti on of Hardware 1-7 Status LEDs The LEDs , which are loca ted on the VS25 12A front panel for ea sy viewing , are shown b elow and descr ibed in the follow ing table. Figure 1-5. P ort and System LED s Port Status LEDs LED Conditio n Status VDSL Po rts Link On Gre en Port has a val id co nnec ti on, po rt e nab led Flashing Amber Port has ...
-
Accton Technology VM2548 - page 20
About the VDSL Switch- VS2512A 1-8 Optional Me dia Extender Modu les Optional 1000BASE-SX Module (VM2512 A-1SX-SC-M ) Figure 1-6. Sin gle-Port 1000BA SE-SX Gigabit Modu le Usi ng mul tim ode fibe r opti c ca ble, the 10 00BA SE- SX por t can be conn ecte d to a remote site up to 5 50 m (1805 ft) away . Th e 1000BASE -SX Gigabit module oper ates at ...
-
Accton Technology VM2548 - page 21
Descripti on of Hardware 1-9 1000BASE- SX GBIC transceivers provide one s hort-wavelength (850 nm) Giga bit port that can be used for a hi gh-speed b ackbone o r server connec tion. This po rt can be conn ected to a site up to 220 m ( 722 ft) aw ay with 62.5/125 m icron mu ltimode fiber cable, or up to 500 m (16 41 ft) with 50/125 mic ron multimo d ...
-
Accton Technology VM2548 - page 22
About the VDSL Switch- VS2512A 1-10 Optional 10/100BASE- TX Module (VM2512A-4TX) Fig ure 1- 11. 4 -Por t 10/1 00B ASE- TX Mod ule Using C ategory 3, 4, or 5 tw isted-pair cable fo r 10 Mbps links or Ca tegory 5 twisted- pair cable for 100 M bps links, you can connec t to another dev ice up to 100 m (328 ft) away . The 10/100BA SE-TX module op erate ...
-
Accton Technology VM2548 - page 23
Descripti on of Hardware 1-11 Option al 100 BASE- FX Modu le (VM2512A-4FX -MTRJ-S) Figure 1-14. 4-Port 100BASE-FX Single -mode Module Using 9/125 micron single -mode fiber c able, the 100B ASE-FX ports can be connect ed to a remote site up to 20 km (1 2.43 miles) awa y . The 100BA SE-FX module operates at 10 0 Mbps, with suppo rt for full-duplex mo ...
-
Accton Technology VM2548 - page 24
About the VDSL Switch- VS2512A 1-12 Key F ea tures VDS L feat ur es (C PE sid e) i nclu de : • High-sp eed Internet access over ex isting phone lines • VDSL con nection pr ovides the follo wing rate/rang e options: • Concurr ent data and tel ephone se rvices (voice/ ISDN) ove r a single conne ction • Always- on digital conne ction elim inat ...
-
Accton Technology VM2548 - page 25
Key Features 1-13 • Provide s Store-and- Forward switch ing for intra-VLA N traffic • Suppo rts wire-spe ed Layer 2 swit ching • Suppo rts flow co ntrol, using back p ressure for half duple x and IEEE 802.3x f or full duplex • Broad cast Sto rm Con trol • Desktop or rack -mounta ble Manageme nt features in clude: • “At-a-glan ce” LE ...
-
Accton Technology VM2548 - page 26
About the VDSL Switch- VS2512A 1-14 ...
-
Accton Technology VM2548 - page 27
2-1 Chapter 2: Network Planning Introduction to Switching A network switch a llows simult aneous tr ansmission of multip le pack ets via non-cro ssbar switch ing. This mea ns that it can parti tion a network more efficiently than bridg es or routers. The switch has, therefore, been recognize d as one of the most im portant building bl ocks for toda ...
-
Accton Technology VM2548 - page 28
Network Planni ng 2-2 Internet Conne ctions The figu re below shows a VDSL Sw itch-VS2512A and VD SL S plitter-VM252 4 providin g a broadband data service to a mul ti-tenant res idential or comm ercial building . In this implemen tation, fiber optic cabl e carries data from a telepho ne company’s cen tral office to the buildi ng; then the install ...
-
Accton Technology VM2548 - page 29
Sample Applicati ons 2-3 Making VLAN Conne ctions VLANs ca n be based on port groups, or each data fram e can be explicitly tag ged to identify the VL AN group to wh ich it belongs. Wh en using por t-based VLANs , ports can be assi gned to one or more groups. Port-ba sed VLANs are sui table for small network s. A single switc h can be easily con fi ...
-
Accton Technology VM2548 - page 30
Network Planni ng 2-4 Application Notes 1. For net work applica tions that require ro uting betwee n dissimi lar network types, you can attach t he VD SL switch direct ly to a router . 2. T he mult imo de fi ber mod ules are f itt ed wi th S C c onnec to rs, but you can att a ch an ST plug to th e switch using Accton’s optional SC -to-ST plug con ...
-
Accton Technology VM2548 - page 31
3-1 Chapter 3: Installing the VDSL Switch and Splitter Prepar ing the Si te In multi-t enant buildin gs, phon e lines coming from the se rvice provi der are gen erally attached to a PBX or MDF di stribution box in the base ment. These lines run from t he PBX to a p unch-down bloc k, and then up to the POTS terminals for individual users. The follo ...
-
Accton Technology VM2548 - page 32
Installing the VDSL Switch and Splitter 3-2 Package C ontents VDSL S witch-VS251 2A • VDSL Switch-VS2512A • Four adhe sive foot pa ds • Bracket Mounting Kit co ntaining two brackets and fo ur screws for atta ching the brackets to the switc h • One Power Cord—either US, Continenta l Europe or UK • RS-23 2 co nsol e ca ble • O ne FireWi ...
-
Accton Technology VM2548 - page 33
Mounting 3-3 • Power req uirements: 100 to 240 V AC (± 10%) at 50 t o 60 Hz (± 3Hz). The switch and split ter power sup plies automat ically adjust to the input vo ltage level. Mak e sure tha t a properly groun ded power o utlet is within 2.5 m (8 ft) of the switch a nd splitte r. • The s witch and sp litter should be l ocated in a co ol dry ...
-
Accton Technology VM2548 - page 34
Installing the VDSL Switch and Splitter 3-4 2. Mount the device in the ra ck, using four ra ck-mount ing screws (not provided). Figure 3-3. Instal ling the Switch in a Rac k 3. I f in st all ing a sing le sw itc h only , turn to “Power ing O n the Swi tch ” at the end of this chapte r . 4. If installing se veral devi ces, we re commend using on ...
-
Accton Technology VM2548 - page 35
Mounting 3-5 3. If installing a sin gle switch onl y , go to “Pow ering On the S witch” at the end of this chapte r . 4. If installing mult iple switche s, attach four adhes ive feet to each one . Place each device s quarely on top of the one below, in any orde r . Installing an O ptional Module into the Swit ch Figure 3-5. Insta lling an Optio ...
-
Accton Technology VM2548 - page 36
Installing the VDSL Switch and Splitter 3-6 Installing a GBIC Transceive r Figur e 3-6. Installin g a GBIC Tra nsceiver Cauti on: Install only 5 V GBIC transceivers into the module slots. Y ou can install a G BIC transce iver as desc ribed below: 1. Inser t the transceiv er with th e SC connector fa cing out to ward you. Note th at the transc eiver ...
-
Accton Technology VM2548 - page 37
Powering On the Switch 3-7 Connec ting to the Stack’s B ackplane Plug one en d of the provided sta ck cable in the “D own” port of the top unit and the other e nd to the “Up” port of the n ext unit. Re peat this step for each un it in the stack. Form a sim ple chain starting at the “Down” po rt on the top unit and en ding at the “Up ...
-
Accton Technology VM2548 - page 38
Installing the VDSL Switch and Splitter 3-8 3. Check the front-panel LEDs as the switch is pow ered on to be sur e the Power LED is lit. If not, check that the p ower cable is cor rectly plugged in. The switch will auto matically se lect the setting t hat matches t he connecte d input voltage. Therefo re, no addition al adjustme nts are necessary w ...
-
Accton Technology VM2548 - page 39
4-1 Chapter 4: Making Network Co nnections Twisted-Pair Devices Each dev ice requir es an unshi elded twis ted-pair (UTP) c able with RJ-45 conn ectors at both ends . For 100BASE- TX connections , Category 5 cabl e is required; for 10BASE-T , Category 3, 4 or 5 cable can be used. Cabling Gu idelines The RJ-45 po rts on the switch support autom atic ...
-
Accton Technology VM2548 - page 40
Making Network Connections 4-2 . Figure 4-1. Connec ting to the Punch-down Blocks Wiring Closet Connectio ns T oday , the punc h-down block is an integral part of ma ny of the newer equipment racks. It is actual ly part of the patch panel. Instr uctions for making connections in the wiring closet with this t ype of equipment fo llows. 1. Connec t R ...
-
Accton Technology VM2548 - page 41
Connecting to the Punch-down Blocks 4-3 2. Label the ca bles to simp lify future trou bleshooting . Figure 4-2. Wi ring Closet C onnections Fiber Optic Devices An optional slide-in 1000B ASE-SX, 1000B ASE-LX or 100BASE-FX m odule, or 1000B ASE-X transceiver m ay be used for backbone and long distance conne ctions, or for ISP (Internet) conne ctions ...
-
Accton Technology VM2548 - page 42
Making Network Connections 4-4 Cauti on: This switch uses lasers to transmit signal s over fiber opt ic cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, y ou should never look directly at a transmit port when it is powered on. 1. Remove and ke ep the SC por t? ...
-
Accton Technology VM2548 - page 43
A-1 Appendix A: Troubleshooting Diagnosing Switch Indicators The VDSL Sw itch-VS25 12A can be easi ly monitored thr ough panel indica tors to identify problem s.The table below des cribes c ommon p roblems y ou ma y encount er and possi ble solutions . If the solutions in the table fail to resol ve the problem contact Accton T echnical Support for ...
-
Accton Technology VM2548 - page 44
T roubleshooting A-2 Installation V e rify that all syst em compo nents have been pr operly installed. If one or more compon ents appear to be malfunction ing (suc h as the power cord or network cabling) , test them in an alternat e environmen t where you are sur e that all the other compon ents are fun ctioning properly . In-Band Acc ess Y ou can ...
-
Accton Technology VM2548 - page 45
B-1 Appendix B: Cables Specifications . Twisted-Pair Cable and Pin Assignme nts Cauti on: DO NOT plug a phone jack connector into any RJ-45 port. Us e only t wisted-pair cables with RJ-45 connectors t hat conform w ith FCC standards. Cauti on: Each wire pair m ust be attached t o the RJ-45 connect ors in a specific orientation. (See “Cabling Guid ...
-
Accton Technology VM2548 - page 46
Cables B-2 10BASE-T/100BASE-T X Pin Assig nments For 100BAS E-TX/10BASE-T conne ctions, a twis ted-pair cable m ust have two pairs of wires. Ea ch wire pair is identified by two different color s. For example, one wire might be red and the o ther , red with white stripes. Also , an RJ-45 co nnector mus t be attached to bo th ends of the cab le. Wit ...
-
Accton Technology VM2548 - page 47
T wisted-Pair Cable and Pi n Assignments B-3 1000B ASE-T Pin Assi gnments 1000BASE- T ports switch support autom atic MDI/MDI-X oper ation, so you can use straight- through cab les for all netwo rk connectio ns to PCs or server s, or to other switch es or hubs. The table below shows the 10 00BASE-T MDI and MDI-X port pinou t s. These ports require ...
-
Accton Technology VM2548 - page 48
Cables B-4 Adjusting Exi sting Cate gory 5 Cabling to Run 100 0BASE-T If your exist ing Categor y 5 installation doe s not meet one of the test paramete rs for 1000BASE- T , there are ba sically three measu res that can be applied to try and correc t the problem: 1. Replace any Categor y 5 patch cables with high-perfor mance Categ ory 5e cables. 2. ...
-
Accton Technology VM2548 - page 49
Console Port Pi n Assignments B-5 Console Port Pin Assignments The DB-9 serial port on th e switch’s front panel is used to connect to th e switch for out -of -ba nd co nsol e conf igur at ion. Th e on- boa rd menu -dri ve n conf ig urat io n pr ogr am can be a ccessed from a ter minal or a P C runni ng a terminal emulation program . The pin assi ...
-
Accton Technology VM2548 - page 50
Cables B-6 ...
-
Accton Technology VM2548 - page 51
C-1 Appendix C: Specifications VDSL Sw it ch Model VDSL Switch-VS2 512A Physical C harac teristics VDSL Specif icationss Supports ev olving E TSI, ANSI a nd ITU standards Modula tion: 4 to 256 QA M Frequency Division Du plexing Data Rat e: Up to 15 Mbps symmetric Range: U p to 1525 m (5000 ft) Port s 1 RJ-21 Por t (contains 12 VDSL lines ) 1 S tac ...
-
Accton Technology VM2548 - page 52
Specifications C-2 Humidity Oper ati ng: 5% to 90% AC Input 100 to 240 V , 50 to 60 Hz Pow er C ons umpt io n 40 W att s maximum Heat Dissip ation 137 BTU/hr maximum Maximu m Current 0.5 A @ 1 10 V AC 0.25 A @ 24 0 V AC Switch Features Sp anning T ree Protocol Forwarding Mod e S tore- and- forw ard Throughpu t Layer 2: wire sp eed Flow Control Ful ...
-
Accton Technology VM2548 - page 53
VDSL Switch C-3 Managem ent Features In-Band Manage ment T eln et, Web-based HTTP , or SNMP man ager (AccView Ne twork Man agement so f tware p rovided free ) Out-of-Ban d Management RS-2 32 D B-9 c ons ol e po rt Soft ware Loading TFTP in- ba nd or XM ode m out- of -ban d MIB Suppo rt MIB-II (RFC1213), In terfaces E voluti on MIB (RFC 286 3), Ethe ...
-
Accton Technology VM2548 - page 54
Specifications C-4 Immunit y EN 61000-4-2/3/ 4/5/6/8/1 1 Safety CSA/NRTL (CSA 22.2.950 & UL 1950) EN 60950 (TÜV /GS) CB (UEC60 950) Warranty Limited Li fetime VDSL Sp litt er Models VM2524 VM2548 Port s VM2524 : 1 RJ-21 Port (contains 24 VDSL lines) VM2548 : 2 RJ-21 Ports (each por t contains 24 VDSL lin es) Networ k Interfac e RJ-2 1 fla t ca ...
-
Accton Technology VM2548 - page 55
Slide-in Modules C-5 Immunit y EN 61000-4-2/3/ 4/5/6/8/1 1 Safety CSA/NRTL (CSA 22.2.950 & UL 1950) EN6095 0 (TÜV/GS) CB (UEC60 950) Wa rr a n ty Limited Li fetime Slide-in Modules 1000BASE-SX Exte nder Module Model VM2512 A-SX-SC-M Port s 1 1000BASE- SX SC-type port Networ k Interfac e SC connector , 50/125 or 62.5/125 mi cron multimode fiber ...
-
Accton Technology VM2548 - page 56
Specifications C-6 1000BASE-T Ext ender Mo dule Model VM2512 A-1G T Port s 1 1000BASE- T RJ-45 port Networ k Interfac e RJ-45 con nector , 100-ohm C ategory 5 o r 5e twisted-pair cabl e (using all fou r wire pai rs) Operating Mode 1 Gbps, full dup lex, autoneg otiation of spe ed and flow con trol 10/100 M bps, full and half dup lex, autoneg otiatio ...
-
Accton Technology VM2548 - page 57
Slide-in Modules C-7 10/1 00BAS E-TX Exte nder Module s Models VS2512A- 4TX VS2512A- 1 TX Port s VS2512A- 4TX 4 10/100B ASE-T RJ-45 ports VS2512A- 1 TX 1 10/100B ASE-T RJ-45 port Networ k Interfac e RJ-45 con nector , 100-ohm , U TP cable 10BASE-T - Categories 3 , 4, or 5 100BASE-T X - Category 5 Operating Mode 10/100 M bps, full and half dup lex A ...
-
Accton Technology VM2548 - page 58
Specifications C-8 ...
-
Accton Technology VM2548 - page 59
Slide-in Modules C-9 ...
-
Accton Technology VM2548 - page 60
Specifications C-10 ...
-
Accton Technology VM2548 - page 61
D-1 Appendix D: Ordering Information VDSL Sw itch-VS25 12A Prod ucts and A ccessories Product Num ber De scription VS2512A 12-port V DSL switc h with one media ex pansion slot VS2524 24 -port VDS L switch w ith one me dia expansio n slot and one SFP slot VM2524 24-port V DSL Split ter VM2548 48-port V DSL Split ter ES2002- TS VDSL CPE VS2524- 1SX-S ...
-
Accton Technology VM2548 - page 62
Ordering Informati on D-2 ...
-
Accton Technology VM2548 - page 63
Glossary-1 Glossary 10BASE-T IEEE 802. 3 specification f or 10 Mbps Ethern et over two pairs of Categ ory 3, 4, or 5 UTP cable. 100BASE-FX IEEE 802. 3u specification for 100 Mbps Fast Ether net over two strand s of 50/125 or 62.5/125 m icron core fib er cable. 100BASE-TX IEEE 802.3u s pecification for 100 Mbps Fast Ethe rnet over two pairs of Cat e ...
-
Accton Technology VM2548 - page 64
Glos sary Glossary-2 Collision Dom ain Single CSMA/CD LAN segment. Customer Premises Equi pment (CPE) T ermi nat ing e qui pme nt, such a s t ermi nal s, ph one s, r out ers and rout er s, su ppli ed by the phone company , ins t alled at customer sites , and connect ed to the pho ne company ne twork. CSMA/CD CSMA/CD (Carrier Sense Mul tiple Access/ ...
-
Accton Technology VM2548 - page 65
Glossary Glossary-3 IEEE 802.3a b Defines CSMA/CD ac cess metho d and physica l layer speci fications for 1000BASE- T Fast Ethernet. IEEE 802.3u Defines CSMA/CD ac cess metho d and physica l layer speci fications for 100BASE-T X Fast Ethernet. IEEE 802.3x Def ine s Et hern et f rame st ar t/ stop req ues ts and ti mers used for fl ow c ont ro l on ...
-
Accton Technology VM2548 - page 66
Glos sary Glossary-4 Private Branch Exchange (PBX) A teleph one exc hange loc al to a par ticular org anisation w ho use, rather th an provide, telephone services . POTS Plain Old T elephone Service. Redundant Po wer Unit (RPU) A backup po wer supply th at automatic ally takes over in ca se the primary po wer supply s hould fail. RJ-45 Connec tor A ...
-
Accton Technology VM2548 - page 67
Index-1 Numerics 1000BASE- LX connection s 4-3 1000BASE- SX connections 4-3 1000BASE- X connections 4- 3 100 BASE -FX conn ect ion s 4-3 100B ASE- LH c onn ecti on s 4-3 100BAS E-LX connecti ons 4- 3 A accesso ries, ordering D-1 adhesiv e feet, attaching 3-4 applicat ions Inte r net c onn ecti ons 2-2 VLAN c onnections 2 -3 B brackets, a ttaching 3 ...
-
Accton Technology VM2548 - page 68
Index Index-2 IGMP S nooping 1- 3 multimo de and singl e-mode fiber op tic cables 4 -3 multimo de fiber optic ca bles 4-3 N network connect ions 4-1, 4 -3 null-mo dem cabl e 1-3 O optional modules, ins tallation 3-3 ordering informati on D -1 out-of-b and manage ment 1-3 P package c ontents 3-2 pin assign ment RJ21 B-4 pin assign ments B -1 1000BAS ...
-
Accton Technology VM2548 - page 69
Index Index-3 Web-ba sed manage ment 1-3 Weighted Round Robin Queuing 1-4 ...
-
Accton Technology VM2548 - page 70
Index Index-4 ...
-
Accton Technology VM2548 - page 71
...
-
Accton Technology VM2548 - page 72
VS2412A VM2524, VM 2548 E072002-R 01 15000001 0100A ...
Do you have a question concerning Accton Technology VM2548?
Use the form below
If you did not solve your problem by using a manual Accton Technology VM2548, ask a question using the form below. If a user had a similar problem with Accton Technology VM2548 it is likely that he will want to share the way to solve it.