Juniper M320 Hardware Manual page 13

List of Figures
Part 1
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Part 2
Chapter 9
Copyright © 2015, Juniper Networks, Inc.
Overview
Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 1: Front View of a Fully Configured Router Chassis . . . . . . . . . . . . . . . . . . . . 8
Figure 2: Rear View of a Fully Configured AC-Powered Router Chassis . . . . . . . . . . 9
Figure 3: Rear View of a Fully Configured DC-Powered Router Chassis . . . . . . . . . 10
Figure 4: Midplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5: Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6: CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 7: Front Panel of the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 8: LED Display in Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 9: LED Display in Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cooling System Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 10: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Host Subsystem Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . 23
Figure 11: Routing Engine 1600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 12: Routing Engine 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 13: RE-A-1800 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 14: RE-A-1800x2 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 15: USB Memory Device in an Routing Engine . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 16: CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Line Card Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 17: FPC Installed in Router Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 18: FPC1, FPC2, and FPC3 for the M320 Router . . . . . . . . . . . . . . . . . . . . . . 51
Figure 19: Enhanced II FPC1, FPC2, and FPC3 for the M320 Router . . . . . . . . . . . . 52
Figure 20: Enhanced III FPC1, FPC2, and FPC3 for the M320 Router . . . . . . . . . . . 52
Figure 21: FPC Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power System Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 22: AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Switch Fabric Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 23: SIB-M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Site Planning, Preparation, and Specifications
Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 24: Typical Open-Frame Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 25: Airflow Baffle Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 26: Chassis Dimensions and Clearance Requirements . . . . . . . . . . . . . . . . 92
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