Juniper Internet Router M160 Hardware Manual page 7

Fire Suppression .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 63
Fire Suppression Equipment . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 64
Power Guidelines, Requirements, and Specifications . .. .. .. .. .. .. .. .. .. .. .. .. .. . 64
Site Electrical Wiring Guidelines . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 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
Tools and Parts Required .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 77
Unpacking the Router . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 77
Chapter 7 Installing the Router Using a Mechanical
Tools and Parts Required . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 81
Installing the Chassis Using a Mechanical Lift . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 81
Chapter 8 Installing the Router without a Mechanical Lift
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
Distance Limitations for Signaling .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 65
Radio Frequency Interference. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 65
Electromagnetic Compatibility .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 65
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