Installing An Mx480 Dc Power Supply - Juniper MX480 Hardware Manual

8. Loosen the captive screws on the bottom edge of the power supply faceplate.
9. Carefully move the power cables out of the way.
10. Pull the power supply straight out of the chassis.
Figure 141: Removing a DC Power Supply from the Router

Installing an MX480 DC Power Supply

WARNING:
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.
To install a DC power supply (see
1. Ensure that the voltage across the DC power source cable leads is 0 V and that there is no chance that
the cable leads might become active during installation.
2. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other
end of the strap to the ESD point on the chassis.
3. Move the DC circuit breaker on the power supply faceplate to the off (O) position.
4. Using both hands, slide the power supply straight into the chassis until the power supply is fully seated
in the chassis slot. The power supply faceplate should be flush with any adjacent power supply faceplate
or blank installed in the power supply slot.
Before performing DC power procedures, ensure that power is removed
Figure 142 on page 401):
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