Juniper Networks M5 - Manual (Page 131)

Replace Power System Components
8. Using a 3-mm flat-blade screwdriver, turn the screw on each quick-connect terminal
clockwise to tighten the terminal connector around the cable.
9. Verify that the DC source power cabling and the grounding cabling are correct, that
they are not touching or blocking access to router components, and that they do not
drape where people could trip on them.
10. Turn on the DC power source so that voltage flows to the router.
11. Turn on the power to a management device that is connected to the Routing Engine
(through the craft interface port labeled AUX/MODEM,CONSOLE, or MGMT). For more
information on connecting management devices, see “Replace Connectors to Routing
Engine Interface Ports” on page 118.
12. Press the power switch on one power supply faceplate to the ON position and engage
the safety interlock lever below the power switch. Verify that the blue OUTPUT OK
LED eventually lights steadily.
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.
13. Press the power switch for the second power supply to the ON ( | ) position and
observe the LEDs on the second power supply faceplate. They should light as described
in the previous step.
If the LEDs are not lit in the appropriate pattern after 60 seconds, repeat the power
supply and cable installation procedures described in “Install a DC Power Supply” on
page 106 and the previous steps in this section.
14. On the external management device connected to the Routing Engine, monitor the
startup process to verify that the system has booted properly.
Replace Hardware Components 111