Juniper EX4650 Series, Hardware Manual, Page: 53 / 195

CAUTION: The V+ terminals are shunted internally together, as are the V- terminals.
The same polarity terminal can be wired together from the same source to provide an
additional current path in a higher power chassis. Do not connect the terminals to different
sources.
Table 22 on page 54 describes the LEDs on the DC power supplies.
Table 22: DC Power Supply LEDs on an EX4650 Switch
Description State Color LED
The power supply is disconnected from
power, or power is not coming into the power
supply.
Off Unlit In
Power is coming into the power supply. On steadily Green
The power supply is disconnected from
power, or the power supply is not sending out
power correctly.
Off Unlit Out
The power supply is sending out power
correctly.
On steadily Green
An error has occurred in the power supply.
Replace the power supply as soon as possible.
To maintain proper airflow through the
chassis, leave the power supply installed in
the chassis until you are ready to replace it.
On steadily Amber Fault
54