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6.
7.
Figure 13: Installing an AC Power Supply
Upgrading the MX240 and MX480 DC Power Supplies
Removing the MX240 and MX480 DC Power Supplies
NOTE: The minimum number of power supplies must be present in the router at all
times.
WARNING: Before performing DC power procedures, ensure that power is removed
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: To maintain proper cooling and prevent thermal shutdown of the operating
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.
Attach the power cord to the AC power source, and switch on the dedicated
customer site circuit breaker. Follow the instructions for your site.
Move the AC input switch next to the appliance inlet on the power supply to the
on (
) position and observe the status LEDs on the power supply faceplate. If the
|
power supply is correctly installed and functioning normally, the
LEDs light steadily and the
DC OK
Upgrading the MX240 and MX480 DC Power Supplies
LED is not lit.
PS FAIL
Upgrading the MX240 and MX480 DC Power Supplies
AC OK
and
15
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