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 (or RCB) 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 secondsfor status
indicators—such as the status LEDs on the power supply and the
show chassis command display—to indicate that the power supply is
functioning normally. Ignore error indicators that appear during the first
60 seconds.
8. On the external management device connected to the Routing Engine, monitor the
startup process to verify that the system has booted properly.
See Also request system halt•
• show chassis power
Connecting Power to a DC-Powered MX5, MX10, MX40, and MX80 Router
CAUTION: Do not mix AC and DC power supply modules within the same
router. Damage to the router might occur.
WARNING: Before performing DC power procedures, ensure that power is
removed from the DC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.
You connect DC power to the router by attaching power cables from the external DC
power sources to the terminal on the power supply faceplate. You must provide the
power cables (the cable lugs are supplied with the router). For power cable specifications,
see “DC Power Cable Specifications for MX5, MX10, MX40, and MX80 Routers” on page 41.
Copyright © 2019, Juniper Networks, Inc.86
MX5, MX10, MX40, and MX80 Universal Routing Platforms Hardware Guide
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