Juniper MX2020 Hardware Manual page 163

Copyright © 2013, Juniper Networks, Inc.
Verify that the source power cables are connected to the appropriate terminal: the
4.
positive (+) source cable to the return terminal labeled (
source cable to the input terminal labeled (
Switch on the dedicated customer site circuit breakers to provide power to the DC
5.
power cables. Follow your site's procedures.
Check that the input labeled (
6.
are installed and functioning normally.
NOTE: Nine input LEDs indicate proper voltage level and polarity of input
feeds.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
7.
the strap to one of the ESD points on the chassis.
For each of the DC PDMs installed, switch the DC circuit breaker at the power source,
8.
moving it to the ( ) position.
ON
On each of the DC PSMs, move the switch to the on (
9.
Verify that the
10. PWR OK
and functioning normally.
NOTE: After a PSM is powered on, it can take up to 60 seconds for status
indicators—such as the status LEDs on the PSM and the
command display—to indicate that the PSM is functioning normally. Ignore
error indicators that appear during the first 60 seconds.
If any of the status LEDs indicates that the PSM is not functioning normally, repeat
the installation and cabling procedures.
Verify that the or
INP0 INP1
11.
NOTE: The DIP switches
feed installation.
On the external management device connected to the Control Board and Routing
12.
Engine (CB-RE), monitor the startup process to verify that the system has booted
properly.
Chapter 9: Grounding and Providing Power to the MX2020 Router
–48V
) LEDs are lit green steadily, indicating the PDMs
–48V
LED is lit green steadily, indicating the PSM is correctly installed
LEDs on the PSM are lit green steadily if using two feeds.
and must be set to the ON position for a two
0 1
) and the negative (–)
RTN
), on the PDMs.
| ) position.
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