Juniper MX2020 Hardware Manual page 13

List of Figures
Part 1
Chapter 1
Chapter 2
Copyright © 2013, Juniper Networks, Inc.
MX2020 3D Universal Edge Router
MX2020 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 1: Power Distribution from Each Power Subsystem to the FRUs . . . . . . . . . . 6
Figure 2: DC Power Subsystem Feed Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3: Power Distribution from Three-Phase Feed Delta PDM to the AC
PSMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4: Power Distribution from Three-Phase Feed Wye PDM to the AC
PSMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MX2020 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5: Front View of a Fully Configured MX2020 Router Chassis . . . . . . . . . . . . 13
Figure 6: Rear View of a Fully Configured AC-Powered MX2020 Router
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 7: Rear View of a Fully Configured DC-Powered MX2020 Router
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 8: MX2020 Router ESD Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 9: Typical ADC Supported on the MX2020 Router . . . . . . . . . . . . . . . . . . . . 21
Figure 10: Typical MPC Supported on the MX2020 Router . . . . . . . . . . . . . . . . . . . 22
Figure 11: MPC Installed in the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 12: RE-MX2000-1800x4 CB-RE Front View . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 13: SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 14: Front Panel of the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 15: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 16: Three-Phase Delta AC Power Distribution Module . . . . . . . . . . . . . . . . . 42
Figure 17: Three-Phase Delta AC Power Distribution Module Connections . . . . . . 43
Figure 18: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 19: Three-Phase Wye AC Power Distribution Module . . . . . . . . . . . . . . . . . 44
Figure 20: Three-Phase Wye AC Power Distribution Module Connections . . . . . . 45
Figure 21: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 22: Three-Phase Delta AC PDM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 23: AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 24: Selecting Input Feed on the AC Power Supply Module . . . . . . . . . . . . . 48
Figure 25: DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 26: DC Power Distribution Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 27: DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 28: Selecting Input Feed on the DC Power Supply Module . . . . . . . . . . . . . 53
Figure 29: Removing Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 30: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 31: Adjustable Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 32: Upper/Lower Fan Trays with Safety Double Latch System . . . . . . . . . . 57
xiii