Internet Router Hardware Guide

Table of Contents
Fire Suppression ............................................................... 63
Fire Suppression Equipment.................................................. 64
Power Guidelines, Requirements, and Specifications............................ 64
Site Electrical Wiring Guidelines.............................................. 65
Distance Limitations for Signaling ....................................... 65
Radio Frequency Interference............................................ 65
Electromagnetic Compatibility...........................................65
Router Power Requirements .................................................. 65
Chassis Grounding ............................................................. 67
Power, Connection, and Cable Specifications................................ 67
Network Cable Specifications and Guidelines.................................... 70
Fiber Optic and Network Cable Specifications .............................. 71
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable ............. 71
Attenuation and Dispersion in Fiber-Optic Cable ........................... 71
Calculating Power Budget for Fiber-Optic Cable............................. 72
Calculating Power Margin for Fiber-Optic Cable............................. 73
Attenuating to Prevent Saturation at SONET/SDH PICs..................... 74
Routing Engine Interface Cable and Wire Specifications ........................ 74
Site Preparation Checklist.......................................................... 75
Chapter 6
Unpacking the Router .. 77
Tools and Parts Required........................................................... 77
Unpacking the Router .............................................................. 77
Chapter 7
Installing the Router Using a Mechanical Lift.. 81
Tools and Parts Required .......................................................... 81
Installing the Chassis Using a Mechanical Lift.................................... 81
Chapter 8
Installing the Router wit hout a Mechanical Lift .. 83
Tools and Parts Required ..........................................................84
Removing Components from the Chassis ........................................ 84
Removing the Power Supplies ................................................ 86
Removing the Rear Component Cover....................................... 86
Removing the SFMs............................................................87
Removing the MCSs ........................................................... 88
Removing the PCGs............................................................ 89
Removing the Routing Engines ............................................... 90
Removing the Rear Upper Impeller Assembly............................... 91
Removing the Rear Lower Impeller Assembly............................... 92
Removing the Fan Tray........................................................ 93
Removing the FPCs ............................................................ 94
Removing the Front Impeller Assembly ..................................... 96
Installing the Chassis into the Rack ............................................... 97
Reinstalling Components into the Chassis........................................ 99
Reinstalling the Front Impeller Assembly...................................100
Reinstalling the FPCs ......................................................... 101
Reinstalling the Fan Tray .....................................................102
Reinstalling the Rear Lower Impeller Assembly ............................103
Reinstalling the Rear Upper Impeller Assembly............................104
Reinstalling the Routing Engines ............................................105
Reinstalling the PCGs .........................................................106
Reinstalling the MCSs......................................................... 107
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