Juniper EX9253 Hardware Manual page 95

4. Push the power cord into the slot in the adjustment nut of the power cord retainer clip. Turn the
nut until it is tight against the base of the coupler (see
Figure 30: Connecting Power to an AC-Powered Switch
5. If the AC power source outlet has a power switch, set it to the off position.
NOTE: Each power supply must be connected to a dedicated AC power feed with a
dedicated customer-site circuit breaker. We recommend that you use a dedicated customer-
site circuit breaker rated for either 15 A (110 VAC) minimum or 10 A (220 VAC) minimum,
or as required by local code.
6. Insert the power cord plug into the power source outlet.
7. Dress the power cord appropriately. Ensure that it does not touch the switch components, block
the air exhaust and access to switch components, or drape where people could trip on it.
NOTE: 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 system is completely powered off 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 off the system again, first issue the CLI request
system halt command.
After a power supply is powered on, it can take up to 60 seconds for status indicators—
such as the status LED on the power supply and the show chassis command display—to
Figure 30 on page 86).
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