Juniper Networks M5, M10 manual AC Power Supply

Power Supplies

After powering off a power supply, wait at least 60 seconds before turning it back on. After powering on a power supply, wait at least 60 seconds before turning it off.

If the router is completely powered down when you power on the power supply, the Routing Engine boots as the power supply completes its startup sequence. If the Routing Engine finishes booting and you need to power down the router again, first issue the CLI request system halt command. For more information, see “Disconnect AC Power from the Router” on page 102 or “Disconnect DC Power from the Router” on page 109.

After a power supply is powered on, it can take up to 60 seconds for status indicators—such as LEDs on the power supply and show chassis commands—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

See the following sections for further information about power system components:

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AC Power Supply on page 17

DC Power Supply on page 18

Power Supply LEDs and Self-test Button on page 19

AC Power Supply

An AC-powered router has two load-sharing AC power supplies, located at the bottom rear of the chassis, as shown in Figure 3. For information about power supply redundancy and replaceability, see “Power Supplies” on page 16.

Figure 8 shows the power supply and Table 5 lists electrical specifications. For information about the LED and self-test button, see “Power Supply LEDs and Self-test Button” on page 19.

Figure 8: AC Power Supply

Safety lever

1316

Appliance
inlet	Power switch

Self test

button

Status LED

Hardware Component Overview 17