Juniper T640 Hardware Manual page 18

T640 Core Router Hardware Guide
Part 2
Chapter 4
Chapter 6
Chapter 7
Chapter 9
Chapter 10
xviii
Figure 37: Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 38: Four-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 39: Six-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 40: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 41: Three-Phase Delta AC Power Supply Connections . . . . . . . . . . . . . . . . . 72
Figure 42: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 43: Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 44: Three-Phase Wye AC Power Supply Connections . . . . . . . . . . . . . . . . . 73
Figure 45: Wye Three-Phase AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 46: Delta AC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 47: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 48: Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 49: Quiet Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 50: Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
T640 Router Initial Installation
Preparing for T640 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 51: Typical Open-Frame Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 52: T640 Chassis Dimensions and Clearance Requirements . . . . . . . . . . . 84
Unpacking the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 53: Contents of the T640 Shipping Crate . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Installing the T640 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 54: Positioning the Spacer Bar on the Rack . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 55: Installing the Mounting Hardware for a Four-Post Rack or Cabinet . . . 96
Figure 56: Installing the Mounting Hardware for an Open-Frame Rack . . . . . . . . 97
Installing the T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . 101
Figure 57: Removing a Power Supply Before Installing the Router . . . . . . . . . . . . 103
Figure 58: Removing a Power Supply Before Installing the Installation
Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Figure 59: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Figure 60: Loading the Router onto the Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Figure 61: Installing the Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Figure 62: Reinstalling a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . 109
Figure 63: Removing a Power Supply Before Installing the Router . . . . . . . . . . . . 112
Figure 64: Removing a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Figure 65: Removing a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Figure 66: Removing an LCC-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Figure 67: Removing an SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Figure 68: Removing the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Figure 69: Removing the Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . 118
Figure 70: Removing the Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . 118
Figure 71: Removing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Figure 72: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 73: Installing the Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Figure 74: Reinstalling the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
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