Powering On The M120 Router - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide

Powering On the M120 Router

92
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M120 DC Power Supply Description on page 31
M120 DC Power Supply LEDs on page 32
To power on the router:
Verify that the power supplies are fully inserted in the chassis and that the captive
1.
screws on their faceplates are tightened.
For each power supply on an AC-powered router, verify that the source power cord is
2.
securely inserted into the appliance inlet. For each power supply on a DC-powered
router, verify that the source power cables are connected to the appropriate terminal:
the positive (+) source cable to the return terminal (labeled
(–) source cable to the input terminal (labeled
Verify that an external management device is connected to one of the Routing Engine
3.
ports on the craft interface (
about connecting management devices, see "Connecting the M120 Router to
Management and Alarm Devices" on page 81.
Turn on the power to the external management device.
4.
For the DC power supply, switch the circuit breaker on one of the power supplies to
5.
the on position ( ). For the AC power supply, move the power switch to the standby
|
position and observe the output status LED on the power supply faceplate. If the
power supply is correctly installed and functioning properly, the status LED on the
power supply faceplate blinks, then lights steadily approximately one minute after
you switch the power supply on.
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, see "Powering Off the M120 Router" on page 93.
After a power supply is powered on, it can take up to 60 seconds for status
indicators—such as the status LEDs on the power supply and the command
display output—to indicate that the power supply is functioning normally.
Ignore error indicators that appear during the first 60 seconds.
Repeat Step 5 for the second power supply.
6.
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–48V
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AUX CONSOLE ETHERNET
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