Datasheet

• M7i AC Power Electrical Safety Guidelines and Warnings on page 152

• Removing an M7i AC Power Cord on page 115

• Replacing an M7i AC Power Supply on page 111

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 2 on page 6. For information about power

supply redundancy and replaceability, see “M7i Power System Description” on page 23.

Figure 16 on page 25 shows the power supply.

Figure 16: DC Power Supply

NOTE: The DC power supplies are marked –48 VDC. This is the nominal

voltage associated with the battery circuit. Any higher voltages are associated

only with float voltages for the charging function.

Documentation

Table 24 on page 174•

• M7i Power Supply LEDs on page 25

• DC Power Electrical Safety Warnings for Juniper Networks Devices on page 154

• M7i DC Power Electrical Safety Guidelines on page 153

• Replacing a DC Power Supply on page 116

M7i Power Supply LEDs

Table 8 on page 26 describes the LED on both AC and DC power supplies.

Chapter 2: M7i Hardware Components