• Installing an M7i AC Power Cord on page 181
• M7i AC Power Electrical Safety Guidelines and Warnings on page 254
• Removing an M7i AC Power Cord on page 181
• Replacing an M7i AC Power Supply on page 177
M7i DC Power Supply
A DC-powered router has one or two load-sharing DC power supplies, located at the
bottom rear of the chassis, as shown in Figure 6 on page 12. For information about power
supply redundancy and replaceability, see “M7i Power System Description” on page 59.
Figure 17 on page 61 shows the power supply.
Figure 17: DC Power Supply
NOTE: The DC power supplies are marked –48 VDC. This is the nominal
voltageassociated with the battery circuit.Any higher voltages are associated
only with float voltages for the charging function.
Related
Documentation
Table 49 on page 87•
• M7i Power Supply LEDs on page 61
• DC Power Electrical Safety Warnings for Juniper Networks Devices on page 256
• M7i DC Power Electrical Safety Guidelines on page 255
• Replacing a DC Power Supply on page 171
M7i Power Supply LEDs
Table 39 on page 62 describes the LED on both AC and DC power supplies.
61Copyright © 2019, Juniper Networks, Inc.
Chapter 7: Power System Components and Descriptions
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