Replacing An Mx960 Dc Power Supply; Removing An Mx960 Dc Power Supply - Juniper MX960 Hardware Manual

Replacing an MX960 DC Power Supply

Removing an MX960 DC Power Supply | 546

1.
Installing an MX960 DC Power Supply | 549
2.
Removing an MX960 DC Power Supply
Before you remove a power supply, be aware of the following:
NOTE: The minimum number of power supplies must be present in the router at all times.
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.
CAUTION:
power supply unit, each power supply slot must contain either a power supply or a
blank panel. If you remove a power supply, you must install a replacement power
supply or a blank panel shortly after the removal.
NOTE: After powering off a power supply, wait at least 60 seconds before turning it back on.
To remove a DC power supply (see
1. Switch off the dedicated customer site circuit breaker for the power supply being removed. Follow
your site's procedures for ESD.
2. Make sure that the voltage across the DC power source cable leads is 0 V and that there is no chance
that the cables might become active during the removal process.
3. Verify that the INPUT OK LEDs on the power supply to be removed are not lit.
Before performing DC power procedures, ensure that power is removed
To maintain proper cooling and prevent thermal shutdown of the operating
Figure 216 on page 548):
546