Juniper MX240 Hardware Manual page 13

List of Figures
Figure 1: Front View of a Fully Configured Router Chassis ..............................6
Figure 2: Rear View of a Fully Configured AC-Powered Router Chassis (110
V) ..............................................................................................................6
Figure 3: Rear View of a Fully Configured AC-Powered Router Chassis
(220V) .......................................................................................................7
Figure 4: Rear View of a Fully Configured DC-Powered Router Chassis ...........7
Figure 5: Midplane ..........................................................................................8
Figure 6: Typical DPCs Supported on the MX240 Router .................................9
Figure 7: DPC Installed Horizontally in the MX240 Router ..............................9
Figure 8: SCB .................................................................................................12
Figure 9: Routing Engine ...............................................................................14
Figure 10: USB Memory Device in a Routing Engine .....................................15
Figure 11: Cable Management System ..........................................................17
Figure 12: Cable Management System Installed on the Router ......................17
Figure 13: Front Panel of the Craft Interface .................................................18
Figure 14: Alarm Relay Contacts ...................................................................21
Figure 15: AC Power Supply ..........................................................................22
Figure 16: DC Power Supply ..........................................................................23
Figure 17: Airflow Through Chassis ...............................................................25
Figure 18: Fan Tray .......................................................................................25
Figure 19: Air Filter .......................................................................................26
Figure 20: Typical Open-Frame Rack ............................................................32
Figure 21: Chassis Dimensions and Clearance Requirements ........................33
Figure 22: Contents of the Shipping Crate .....................................................38
Figure 23: Installing the Front Mounting Hardware for a Four-Post Rack or
Cabinet ...................................................................................................42
Figure 24: Installing the Mounting Hardware for an Open-Frame Rack .........43
Figure 25: Installing the Router in the Rack ...................................................47
Figure 26: Routing Engine Management Ports ...............................................49
Figure 27: RJ-45 Cable Connector ..................................................................50
Figure 28: Alarm Relay Contacts ...................................................................51
Figure 29: Attaching a Cable to a DPC ...........................................................52
Figure 30: Connecting AC Power to the Router .............................................55
Figure 31: Connecting DC Power to the Router .............................................58
Figure 32: DPC Edges ....................................................................................75
Figure 33: Do Not Grasp the Connector Edge ................................................76
Figure 34: Do Not Rest the DPC on an Edge ..................................................77
Figure 35: Airflow Through the Chassis .........................................................82
Figure 36: Removing the Craft Interface ........................................................90
Figure 37: Installing a Craft Interface ............................................................91
Figure 38: Alarm Relay Contacts ...................................................................91
Figure 39: Removing the Fan Tray from an MX240 Router ...........................93
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List of Figures