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Enterasys Networks A2H254-16 manual

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Índice de manuales de instrucciones

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    7.5x9-inch cover with bleed on 4 sides Secur eStack A2 Fast Ether net Switches Hardware Installation Guide A2H254-16 P/N 9034173[...]

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    [...]

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    i Notice Enterasys  Networks  reserves  the  right  to  make  changes  in  specifications  and  ot her  information  contained  in  this  document  and  its  web  site  without  prior  notice.  The  reader  should  in  all  cases  consult  Enterasys  Ne [...]

  • Página 4

    ii Regulatory Compliance Information Federal Communications Commission (FCC) Notice This  device  com plies  with  Pa r t  15  of  the  FCC  rules.  Operation  is  subject  to  the  following  tw o  conditions:  (1)  this  devic e  may  not  cause  harmful  interference, [...]

  • Página 5

    iii Electromagnetic Compatibility (EMC) This  product  complies  with  the  following :  47  CFR  Par t s  2  and  15,  CSA  C108.8,  89/336/EEC,  EN  55022,  EN  6100 0 ‐ 3 ‐ 2,  EN  61000 ‐ 3 ‐ 3,  EN  55024,  AS/NZS  CISPR  22,  VCCI  V ‐ 3.  Compatibil[...]

  • Página 6

    iv European Waste Electrical and Electronic Equipment (WEEE) Notice In  accordance  with  Directive  200 2/96/EC  of  the  European  P arliament  on  was te  elect rical  and  electronic  equipmen t  (WEEE): 1. The  symbol  above  indi cates  that  separate  coll ection  of  elect[...]

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    v Declaration of Conformity Application  of  Co uncil  Directiv e(s): 89/336/EEC 73/23/EEC Manufacturer’s  Na me: Enterasys  Networks,  Inc. Manufacturer ’ s  Address: 50  Minuteman  Road Andover,  MA  01810 USA European  Representativ e  Address: Enterasys  Networks,  Lt d. Nexus  House,  Newb[...]

  • Página 8

    vi Enterasys Networks, Inc. Firmware License Agreement BEFORE OPENING OR UTILIZIN G THE ENCLOSED PRODUCT, CAREFULLY READ THIS LICENSE AGREEMENT. This  document  is  an  agreement  (“ Agreement”)  betwee n  the  end  user  (“Y ou”)  and  Enterasys  Netw orks,  Inc.  on  behalf  of  itself[...]

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    vii 3. APPLICABLE  LAW.  This  Agreem ent  shall  be  interpreted  and  governed  under  the  laws  and  in  the  state  and  federal  courts  of  the  Commonwealth  of  Massachusetts  without  regard  to  its  conflicts  of  laws  provisions.  You  a[...]

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    viii 8. AUDIT  RIGHTS.  You  here by  acknowled ge  that  the  inte llectual  property  rights  associated  with  the  Program  are  of  critical  value  to  Enterasys  and,  accordingly,  You  hereby  agree  to  maintain  complete  books,  records  and  ac[...]

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    ix Contents About This Guide Who Should Use This G uide ........ ................... .................... ................... ................... ................ .......... xiii How to Use This Guide ................ ................... .................... ................ ................... ............... ........... .. xiv Related Documents .[...]

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    x Configuring Switches in a Stack .................. ................... .................... ................... ................... .... ... 3-12 About SecureStack A2 Switch Op eration in a Stack ................. ................... ................... .......... 3-12 Recommended Procedures for New and Existing Stacks ......... .................[...]

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    xi Figures 1-1 A2H254-16 Stackable Switch..... ................... ....................... ................... ................... ............ 1 -3 3-1 Mini-GBIC with RJ45 Connector ......... .................... ...................... .................... ................... .. 3-4 3-2 Mini-GBIC with MT-RJ Connec tor ........... ................ [...]

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    xii[...]

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    SecureStack A2 Inst allation Guide xiii About This Guide This  guide  provides  an  ov erview  of  installation,  troubleshooting,  and  specificat ions  for  the  Enterasys ®  SecureStack  A2H254 ‐ 16  stackable  Ethernet  switch. For  information  about  the  Command  Li ne  [...]

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    How to Use This Guide xiv About This Guide How to Use This Guide Read  through  this  guide  completely  to  familiarize  you rs el f  with  its  contents  and  gain  an  understanding  of  the  features  and  capabilities  of  the  stackable  Ethernet  switch.  A  genera[...]

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    Conventions Used in This Guide SecureStack A2 Installation Guide x v Conventions Used in This Guide The  following  conventions  are  used  in  this  guide: Note: Calls the reader ’s attention to any item of information that may be of special import ance. Caution: Contains information essential to avoid damage to the equ ipme[...]

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    Conventions Used in This Guide xvi About This Guide[...]

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    SecureStack A2 Installation Guide 1-1 1 Introduction This  chapter  introduces  the  A2H254 ‐ 16  stackable  Fast  Ethernet  switch.  Overview The  A2H254 ‐ 16  is  a  stackable  Fast  Ethernet  switch,  which  can  be  adapted  and  scaled  to  help  meet  you r  [...]

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    Overview 1-2 Introduction The  switch  also  suppo rts  the  use  of  a  redundant  DC  power  supply  to  help  prev ent  downtime  due  to  an  internal  pow er  supply  failure  in  the  switch  or  AC  power  source. Yo u  can  install  the  Secur[...]

  • Página 21

    Overview SecureStack A2 Installation Guide 1-3 Figure 1- 1 A2H254-16 S ta ckable Switch S tack Connections The  switch  has  front ‐ panel  RJ45  ports  17  and  18  for  connections  in  a  stack  configuration.  The  stacking  cables  used  for  the  connections  are  standard[...]

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    Connectivity 1-4 Introduction Connectivity The  SecureStack  A2  switch  connects  to  Ethernet  networks  or  w orkstations  via  the  fixed  front  panel  MT ‐ RJ  and  RJ45  ports  and  the  tw o  SFP  uplink  ports  that  support  optional  Mini ‐ GBICs. At [...]

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    Management SecureStack A2 Installation Guide 1-5 Management Management  of  the  mod ule  can  be  either  in ‐ band  or  out ‐ of ‐ band.  In ‐ band  remote  management  is  possible  using  Te l n e t ,  Enterasys  Netw orks’  NetSight ®  management  application,  or [...]

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    Getting Help 1-6 Introduction Getting Help For  additional  support  related  to  the  SecureStack  A2  or  this  document,  contact  Enterasys  Netw orks  using  one  of  the  following  methods: Before  contacting  Enterasys  Networks  for  technical  support,  have [...]

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    SecureStack A2 Installation Guide 2-1 2 Network Requirements Before  inst alling  the  device,  review  the  requirements  and  spec ifications  in  this  chapter  concerning  the  following: 10BASE-TX T wisted Pair Network When  connecting  a  10BASE ‐ TX  segment  to  one  of  th[...]

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    100BASE-TX Twisted Pair Network 2-2 Network Requirements 100BASE-TX T wisted Pair Network When  connecting  a  100BASE ‐ TX  segment  to  one  of  the  fixed  RJ45  ports  (odd  numbered  ports  1 ‐ 15),  use  Category  5  UTP  cabling.  The  device  at  the  other  e[...]

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    1000BASE-FX Fiber-Optic Network SecureStack A2 Installation Guide 2-3 1000BASE-FX Fiber-Optic Network The  Mini ‐ GBIC  port  sockets  19  and  20  on  the  A2H254 ‐ 16  enable  yo u  to  va r y  the  type  of 1 ‐ Gbps  port  connection.  At  the  printing  of  this  docu[...]

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    1000BASE-FX Fiber-Optic Network 2-4 Network Requirements[...]

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    SecureStack A2 Installation Guide 3-1 3 Hardware Installation This  chapter  provides  instructions  to  install  the  A2H254 ‐ 16.  Follow  the  order  of  the  sections  listed  below  to  correctly  install  the  switch . Electrical Hazard: Only qualified perso nnel should perform ins[...]

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    Considerations Prior to Installation 3-2 Hardware Installation Considerations Prior to Inst allation When  installing  the  switch ,  note  the  following : •B e f o r e  starting  the  installation  procedure,  notify  the  network  administrator  of  the  installation. •F o l l o w  the ?[...]

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    Installing Optional Mini-GBICs SecureStack A2 Installation Guide 3-3 Inst alling Optional Mini-GBICs This  section  describes  how  to  install  Mini ‐ GBICs  in  the  SFP  port  slots  19  and  20  on  the  A2H254 ‐ 16.  It  is  recommended  that  the  optional  Mini ‐ G[...]

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    Installing Optional Mini-GBICs 3-4 Hardware Installation Inst allation To  install  a  Mini ‐ GBIC  that  has  an  RJ45  connector,  refer  to  Figure  3 ‐ 1 ;  for  a  Mini ‐ GBIC  with  an  MT ‐ RJ  connector ,  refer  to  Figure  3 ‐ 2 ;  for  a  Mini ‐ GBI[...]

  • Página 33

    Installing Optional Mini-GBICs SecureStack A2 Installation Guide 3-5 Figure 3-2 Mini-GBIC with MT -RJ Connector 1 SFP Slot 3 Release tab 2 Mini-GBIC (MGBIC-MT01) 4 Link/Activity LED[...]

  • Página 34

    Installing Optional Mini-GBICs 3-6 Hardware Installation Figure 3-3 Mini-GBIC with LC Connector Removing the Mini-GBIC 1 SFP Slot 3 Release tab 2 Mini-GBIC (MGBIC-LC01,-LC03, -LC09, MGBIC-08) 4 Link/Activity LED Caution: Do NOT remove a Mini-GBIC from a slot without relea sing the locking tab located under the front bottom end of the Mi ni-GBIC. Th[...]

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    Installing the Switch on a Flat Surface SecureStack A2 Installation Guide 3-7 To  re move  a  Mini ‐ GBIC  from  a port  slot,  refer  back  to  Figure  3 ‐ 1 ,  Figure  3 ‐ 2 ,  or  Figure  3 ‐ 3 ,  and  proceed  as  follows: 1. Attach  you r  antistatic  wrist  strap [...]

  • Página 36

    Installing the Switch on a Flat Surface 3-8 Hardware Installation Figure 3-4 Chassis Bottom, Rubber Feet Placement Guidelines for Flat Surface Inst allation Locate  the  switch  within  152  cm  (5  ft)  of  its  pow er  source  and  on  a  surface  as  shown  in  Figure  3 ‐ 5 .  A ?[...]

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    Rack Mounting the Switch SecureStack A2 Installation Guide 3-9 If  you  are  installing  sev eral  switch es  in  a  stack,  proceed  to  “ Connecting  Sta cking  Cables ”  on  page  3 ‐ 11.  If  the  switch  is  being  installed  as  a  standalone  switch ,  pro[...]

  • Página 38

    Rack Mounting the Switch 3-10 Hardware Installation Guidelines for Rackmount Inst allation The  installation  site  must  be  withi n  reach  of  the  network  cablin g  and  meet  the  requirements  listed  below: • Appro priate  grounded  pow er  receptacles  must  be  located ?[...]

  • Página 39

    Connecting Stacking Cables SecureStack A2 Installation Guide 3-11 2. With  the  mou nting  brackets  attached,  position  the  switch  between  the  vert ical  frame  members  of  the  19 ‐ inch  rack  as  shown  in  Figure  3 ‐ 7 .  Then  fa sten  the  switch  secure[...]

  • Página 40

    Configuring Switches in a Stack 3-12 Hardware Installation Figure 3-8 S tacking Cable Conn ections After  connecting  the  cables  to  the  stacking  ports,  proceed  to  “ Configuring  Switches  in  a  Stack ”  on  page  3 ‐ 12  for  instructions. Configuring Switches in a S t ack The [...]

  • Página 41

    Configuring Switches in a Stack SecureStack A2 Installation Guide 3-13 Once  installed  in  a  stack,  the  switches  behave  and  perform  as  a  single  switch.  As  such,  you  can  start  with  a  single  switch  and  add  more  switches  as  yo ur  network ?[...]

  • Página 42

    Configuring Switches in a Stack 3-14 Hardware Installation Recommended Procedures for New and Existing S tacks Inst alling a New St ackable Syst em of Up to Eight Switches Use  the  following  procedure  to  install  a  new  stack  of  up  to  eight  switches  out  of  the  box.  Before  appl[...]

  • Página 43

    Connecting AC and RPS-SYS Power SecureStack A2 Installation Guide 3-15 Adding a New Switch to an Existing St ack Use  the  following  procedure  to  install  a  new  switch  to  an  existing  stack  configuration.  This  procedure  assumes  that  the  new  switch  being  added  ha[...]

  • Página 44

    Connecting AC and RPS-SYS Power 3-16 Hardware Installation Figure 3-9 Switch Rear V iew 3. Observe  the  pow er  CPU  LED  (not  shown),  located  on  the  front  panel.  During  the  initialization,  the  CPU  LED  will  start  by  illuminating  sol id  amber,  then  start [...]

  • Página 45

    Connecting AC and RPS-SYS Power SecureStack A2 Installation Guide 3-17 C2RPS-SYS Redundant Power System If  you  are  installing  an  optional  re dundant  power  system  (C2RPS ‐ SYS),  refer  to  the  installation  instructions  supplied  with  the  Secure Stack  RPS.  The  switch ?[...]

  • Página 46

    Connecting to Console Port for Local Management 3-18 Hardware Installation S tack Initialization Overview When  you  install  and  connect  all  the  stacking  cables  to  the  switches  in  the  stack  before  applying  power  to  the  swi tches,  the  following  occurs: •T h e[...]

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    Connecting to Console Port for Local Management SecureStack A2 Installation Guide 3-19 Using  a  DTE  modem  DB9  female ‐ to ‐ DB25  female  cable,  you  can  connect  products  equipped  with  a  DB9  DTE  male  console  port  to  a  VT  series  terminal  or  VT [...]

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    Connecting to Console Port for Local Management 3-20 Hardware Installation When  these  parameters  are  set,  the  Startup  screen  will  display .  Proceed  to  “ Connecting  to  the  Network ”  on  page  3 ‐ 23 . Figure 3-12 Connecting an IBM PC or Comp atible Connecting to a VT Series [...]

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    Connecting to Console Port for Local Management SecureStack A2 Installation Guide 3-21 When  these  parameters  are  set,  the  Startup  screen  will  display .  Proceed  to  “ Connecting  to  the  Network ”  on  page  3 ‐ 23 . Figure 3-13 Connecting a VT Series T erminal Connecting to a M[...]

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    Connecting to Console Port for Local Management 3-22 Hardware Installation When  these  parameters  are  set,  the  Startup  screen  will  display .  If  the  switch es  ar e  in  a  stacked  configuration,  proceed  to  “ Connecting  to  the  Network ”  on  page  3 ?[...]

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    Connecting to the Network SecureStack A2 Installation Guide 3-23 Connecting to the Network This  section  provides  the  procedure  to  connect  fiber ‐ optic  cables  from  the  fi xed  front  panel  MT ‐ RJ  ports  to  the  network  or  other  devi ces.  In  addition  thi[...]

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    Connecting to the Network 3-24 Hardware Installation 2. Insert  the  MT ‐ RJ  cable  connector  into  the  MT ‐ RJ  front  panel  port  unti l  it  clicks  into  place. Figure 3-15 Connecting a Fiber-Opt ic Cable Segment to MT -RJ Port Caution: Do not touch the ends of the fiber-op tic strands, and d[...]

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    Connecting to the Network SecureStack A2 Installation Guide 3-25 3. V erify  that  a  link  exists  by  chec king  that  the  Link/Act ivity  LED  is  ON  (solid  green  or  blinking  green).  If  the  Link/ Activity  LED  is  OFF ,  perform  the  following  st eps [...]

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    Connecting to the Network 3-26 Hardware Installation To  connect  an  MT ‐ RJ  cable  to  a  fixed  MT ‐ RJ  connector  of  a  Mini ‐ GBIC: 1. Remove  the  protectiv e  covers  from  the  Mini ‐ GB IC  MT ‐ RJ  fiber ‐ optic  port  and  from  the  connectors  [...]

  • Página 55

    Connecting to the Network SecureStack A2 Installation Guide 3-27 Connecting Fiber-Optic Cabl es to LC Mini -GBIC Port s This  section  describes  how  to  connect  •a  100 0BASE ‐ SX  multimode  fiber ‐ optic  segment  from  the  netwo rk  or  other  devices  to  an  LC  port  con[...]

  • Página 56

    Connecting to the Network 3-28 Hardware Installation To  connect  an  LC  cable  connector  to  a  fixed  LC  connector  of  a  Mi ni ‐ GBIC: 1. Remove  the  protectiv e  covers  from  the  Mini ‐ GB IC  LC  fiber ‐ optic  po rt  and  from  the  connectors  on ?[...]

  • Página 57

    Connecting to the Network SecureStack A2 Installation Guide 3-29 Connecting UTP Cabl es to RJ45 Port s The  fixed  RJ4 5  front  panel  10/100  Mbps  ports  and  the  RJ45  Mini ‐ GBIC  (MGBIC ‐ 02)  Gigabit  ports  are  both  internally  crossed.  When  connecting  a  works ta t[...]

  • Página 58

    Connecting to the Network 3-30 Hardware Installation 3. V erify  that  a  link  exists  by  chec king  that  the  Link/Act ivity  LED  is  ON  (solid  green  or  blinking  green).  If  the  Link/ Activity  LED  is  OFF ,  perform  the  following  st eps  until  i[...]

  • Página 59

    Connecting to the Network SecureStack A2 Installation Guide 3-31 Figure 3-17 Four-Wire Crossov er Cable RJ45 Pinouts f or 10/100BASE-TX Figure 3-18 Four-Wire S traight-Through Cable RJ45 Pinout s for 10/100BASE-TX 1 RJ45 switch port 3 RJ45-to-RJ45 crossover cable 2 Other device port 4 RX+/RX- and TX+/TX-connecti ons These connections must share a c[...]

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    Connecting to the Network 3-32 Hardware Installation Figure 3-19 Eight-W ire Crossover Cable RJ45 Pinout s for 10/100/1000BASE-TX Figure 3-20 Eight-W ire Straight- Through Cable RJ45 Pinout s for 10/100/ 1000BASE-TX 1 RJ45 device port 3 RJ45-to-RJ45 crossover c able 2 Other device port 1 RJ45 device port 3 RJ45-to-RJ45 straight-through cable 2 Othe[...]

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    Completing the Installation SecureStack A2 Installation Guide 3-33 Completing the Inst allation After  installing  the  switch  and  making  the  connections  to  the  net work,  access  the  switch  management,  as  described  below . Initial Logon to Switch Management To  initially  access [...]

  • Página 62

    Completing the Installation 3-34 Hardware Installation[...]

  • Página 63

    SecureStack A2 Installation Guide 4-1 4 T roubleshooting This  chapter  provides  information  concerning  the  following: This  device  contains  a  battery  that  is  not  considered  a  user  replaceable  part.  If  the  battery  needs  to  be  replaced,  contact  c[...]

  • Página 64

    Using LANVIEW 4-2 Troubleshooting Using LANVIEW The  A2H254 ‐ 16  supports  the  Enterasys  Netw orks  bui lt ‐ in  LANVIEW  LED  visual  diagnostic  and  status  monitoring  system.  The  LANVIEW  LEDs  on  the  A2H254 ‐ 16  are  located  as  shown  in  Figure  [...]

  • Página 65

    Using LANVIEW SecureStack A2 Installation Guide 4-3 T able 4-1 LANVIEW LEDs LED Color State Recommended Acti on CPU Off Power disconnected. If the LED remains off after connecting AC power or DC power from an RPS, check the following: 1. Make sure there is power at the power source (AC source and RPS if applicable). 2. Replac e the power cord with [...]

  • Página 66

    Using LANVIEW 4-4 Troubleshooting DOWN Off No valid connection to switch stackup connector . 1. Make sure the switch connected to the stackup connector is powered on. 2. Replace cable with a known goo d one. 3. If the problem still exists, contact Enterasys Networks for technical support. Green Solid . V alid connection to switch stackup connector [...]

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    Using LANVIEW SecureStack A2 Installation Guide 4-5 RPS Off The RPS LED remains off regardless if the RPS is atta ched or not. The L ED being in its off st ate is not a n indication that the RPS is not functioning properly and won’t supply power in the event of an AC power supply failure. See Amber state below . None. Amber Solid .The switch inte[...]

  • Página 68

    Troubleshooting Checklist 4-6 Troubleshooting T roubleshooting Checklist If  the  device  is  not  work in g  properly ,  refer  to  Ta b l e  4 ‐ 2  for  a  checklist  of  problems,  possible  causes,  and  recommended  actions  to  resolve  the  problem. T able 4-2 T rouble[...]

  • Página 69

    Troubleshooting Checklist SecureStack A2 Installation Guide 4-7 Cannot contact the SecureS tack A2 through in-band management. IP address not assigned. Refer to the SecureSt ack A2 Configuration Guide for the IP address assignment procedure. Port is disabled . This is normal if the swi tch is a Member in a stack. If operating as a standalone sw itc[...]

  • Página 70

    Using the Reset Password Button 4-8 Troubleshooting Using the Reset Password Button If  you  forget  the  SecureSt ack  A2  login  passw ord,  use  the  Reset  Pas s w o rd  button  as  described  in  the  following  procedure.  Figure 4-2 Reset Password Button To  reset  the  Secure[...]

  • Página 71

    SecureStack A2 Installation Guide A-1 A Specifications This  appendix  provides  information  about  the  foll owing: Enterasys  Netw orks  reserves  the  right  to  change  the  specifications  at  any  time  without  notice. Switch S pecifications Ta b l e  A ‐ 1  provides  the ?[...]

  • Página 72

    Switch Specifications A-2 Specifications Dimensions 44.1 cm (17.36 in.) W x 4.4 cm (1.73 in.) H x 21.0 cm (8. 27 in.) D Approximate Weight Gross: Net: 3.5 kg (7.68 lb) (shipping carton containing one module) 2.7 kg (5.94 lb) (one module without packaging) Heat Dissipation (maximum) 174 BTU/HR Power Amperage 1 10 V/0.5 A; 220 V/0.47 A Power Consumpt[...]

  • Página 73

    Mini-GBIC Input/Output Specifications SecureStack A2 Installation Guide A-3 Mini-GBIC Input/Output S pecifications The  Mini ‐ Gigabit  Ethernet  Card  (Mini ‐ GBIC)  port  interface  slots  can  support  1 ‐ Gbps  fiber ‐ optic  connections  as  described  in  Ta b l e  A ‐ 2 .  The ?[...]

  • Página 74

    Gigabit Ethernet Specifications A-4 Specifications Gigabit Ethernet S pecifications The  following  specifications  for  the  Mini ‐ GBICs  shown  in  Ta b l e  A ‐ 3  through  Ta b l e  A ‐ 11  meet  or  exceed  the  IEEE  802.3z ‐ 1998  standard. MGBIC-LC01/MGBIC-MT01 S pec ificatio[...]

  • Página 75

    Gigabit Ethernet Specifications SecureStack A2 Installation Guide A-5 MGBIC-LC09 S pecific ations (1000BASE-LX) T able A-6 MGBIC-LC03 Operating Range Item Modal Bandwid th @ 1310 nm Range 62.5 µm MMF 160 MHz/km 2,000 Meters 50 µm MMF 400 MHz/km 2,000 Meters T able A-7 MGBIC-LC09 Optical S pecifications Item 62.5 µm MM F 50 µm MMF 10 µm SMF T r[...]

  • Página 76

    Gigabit Ethernet Specifications A-6 Specifications MGBIC-08 Specificati ons (1000BASE-ELX) MGBIC-02 Specifications (1000BASE-T) T able A-9 MGBIC-08 Optical Spec ifications Item T ransmit Power (minimum) -0 dBm, min. +2 dBm, typical +5 dBm, max. Receive Sensitivity -24 dBm, min. -26 dBm, typical Maximum Input Power -3 dBm Link Power Budget 1 (Full D[...]

  • Página 77

    Console Port Pinout Assignments SecureStack A2 Installation Guide A-7 Console Port Pinout Assignment s The  Console  port  is  a  DB9  serial  communications  port  for  local  access  to  Local  Management.  Refer  to  Figure  A ‐ 1  for  the  Co nsole  port  pin  assignment[...]

  • Página 78

    Regulatory Compliance A-8 Specifications[...]

  • Página 79

    Index-1 Index Numerics 1000BASE-FX requirements 2-3 1000BASE-T requirements 2-2 100BASE-FX requirements 2-2 100BASE-T requirements 2-2 10BASE-T requirements 2-1 A A2H254-16 overview of 1-2 C Cable fiber budget A-3 Cable specifications 1000BASE-FX network 2-3 1000BASE-T network 2-2 100BASE-FX network 2-2 100BASE-T network 2-2 10BASE-T network 2-1 CL[...]

  • Página 80

    Index-2 P Pinout assignments UTP 4-wire crossover cable 3-3 1 UTP 4-wire straight-through cable 3-31 UTP 8-wire crossover cable 3-3 2 UTP 8-wire straight-through cable 3-32 Power connection AC 3-15 RPS DC 3-17 R Rackmount installation guidelines for 3-10 Receive/Transmit LEDs viewing of 4-2 Redundant Power Supply Capability introduction to 1-3 Regu[...]