Figure 111: Installing A Dc Power Supply In The Router - Juniper MX480 Hardware Manual

MX480 3D Universal Edge Router Hardware Guide
218
Verify that the power cabling is correct, that the cables are not touching or blocking
11.
access to router components, and that they do not drape where people could trip on
them.
Switch on the dedicated customer site circuit breakers. Follow your site's procedures
12.
for safety and ESD.
Verify that the INPUT OK
On each of the DC power supplies, switch the DC circuit breaker to the center position
13.
before moving it to the on (
NOTE: The circuit breaker may bounce back to the off (
move the breaker too quickly.
Observe the status LEDs on the power supply faceplate. If the power supply is correctly
installed and functioning normally, the
green steadily.
NOTE: If more than one power supply is being installed, turn on all power
supplies at the same time.
NOTE: An SCB must be present for the

Figure 111: Installing a DC Power Supply in the Router

LED on the power supply is lit green.
) position.
—
,
PWR OK BRKR ON
PWR OK
) position if you
O
, and LEDs light
INPUT OK
LED to go on.
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