Juniper EX8208 Hardware Manual page 73

Figure 14: DC Power Supply LEDs in an EX8200 Switch
Table 31 on page 73 describes the LEDs on a DC power supply in EX8200 switches.
Table 31: DC Power Supply LEDs in EX8200 Switches
LED
A IN OK
State
Unlit
Green
Yellow
Red
Description
Indicates one of the following:
Power supply is disconnected from DC power
feed.
DC power input voltage is not within normal
operating range (-40 VDC through -72 VDC).
No DC power input.
DC power input voltage is within normal
operating range (–40 VDC through –72 VDC).
DC input is present on the terminals but either
the fuse is tripped or the ORing diode is open.
DC power input voltage is reversed in polarity.
NOTE: The DC power supply is protected against
reverse polarity input for both DC input feeds.
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