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PowerGuidelines,Requirements, and Specifications ............................................... 42
Site Electrical Wiring Guidelines ................................................................ 43
Distance Limitations for Signaling......................................................... 43
Radio FrequencyInterference ............................................................. 43
Electromagnetic Compatibility............................................................. 43
Router PowerRequirements .................................................................... 43
AC Grounding and Power Cord Specifications.................................................. 45
DC Grounding, Connection, and Cable Specifications......................................... 46
Network CableSpecificationsand Guidelines ....................................................... 48
Fiber Optic and Network Cable Specifications................................................. 48
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable................................. 48
Attenuationand Dispersion inFiber-Optic Cable .............................................. 49
CalculatingPower Budget forFiber-Optic Cable................................................ 49
CalculatingPower Margin for Fiber-Optic Cable................................................ 50
Attenuate toPrevent Saturation at SONET/SDH PICs.......................................... 51
Cable Specifications for Routing Engine Management Interfaces .................................. 52
Site Preparation Checklist ............................................................................ 52
Chapter 6
Unpack the Router............................................................................................... 55
Tools Required ........................................................................................ 55
Unpack the Router.................................................................................... 55
Choose Front or Cente
r Mounting ................................................................... 57
Chapter 7
Install the Router ................................................................................................ 59
Tools andParts Required ............................................................................. 59
Install the Chassisinto theRack...................................................................... 59
Chapter 8
Connect the Router and Perform Initial Configuration...................................... 61
Tools andParts Required .............................................................................61
Connect the Router to Managem ent Devices........................................................ 61
Connect to a Network for Out-of-Band Management .......................................... 6 2
Connect to a Management Console or Auxiliary Device ....................................... 63
ConnectPICCables ................................................................................... 63
Provide Power to the Router.......................................................................... 65
ConnectPower toan AC-Powered Router ...................................................... 65
ConnectPower toa DC-Powered Router........................................................ 66
PowerOn the Router ............................................................................ 67
Configure the JUNOS Internet Software.............................................................. 69
Table of Cont ents
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