Juniper MX2010 Hardware Manual page 350

6. Verify that the LEDs on the power supply faceplate are properly lit.
7. Issue the CLI show chassis environment pem command and verify the State is ONLINE and the
Temperature is OK.
To restart a high-capacity DC power supply after a shut down due to an over-temperature situation:
1. Switch off the circuit breaker(s) on the DC distribution panel to remove power to the chassis and power
supplies.
2. Switch on the circuit breaker(s) on the distribution panel to power up the chassis and power supplies.
NOTE: The power switch on the power supplies is not part of the outer or inner DC
circuits and therefore does not need to be switched off when restarting the chassis.
If output power is not load-balancing correctly in the same zone on an MX2000 router with a
high-capacity AC or DC power supply module, connect two feeds and change the DIP switch to 1 to
boost the voltage on the power supply module.
Each High Capacity AC or DC power supply accepts two AC or DC feeds in two unique AC or DC
receptacles. It is possible to operate with one feed, but there is a reduction in the power supply output.
The DIP switch must be set according to the number of AC or DC feeds that are present for the power
supply. Refer to Figure 137 on page 334
Figure 137: Setting the MX2000 Router DIP Switch
PWR OK FAULT
INP0 INP1
Position – 0 indicates that only one AC or DC feed is provided.
Position – 1 indicates that two AC or DC feeds are provided.
ON
0 1
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