Figure 29: Three-Input 240-A Dc Power Supply Leds; Table 21: Three-Input 240-A Dc Power Supply Leds - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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54

Figure 29: Three-Input 240-A DC Power Supply LEDs

Table 21 on page 54 describes the three-input 240-A DC power supply LEDs.

Table 21: Three-Input 240-A DC Power Supply LEDs

LED Color
—One per Green
CB ON
input
—One per Blue
DC OK
power supply
Green
INPUT
—One
PRESENT
per input
OVER Yellow
—One per
TEMP
power supply
T640 Power System Description on page 49
Powering On a DC-Powered T640 Router on page 130
Maintaining the T640 Power Supplies on page 159
State Description
On steadily Circuit breaker is on.
Off Circuit breaker is not turned on, or
host subsystem has detected a
failure and has turned the circuit
breaker off.
On steadily When the power supply is correctly
set to
2-INPUT
and
INPUT 1
the
DC OK
power supply is functioning
normally.
Blinking Power supply is starting up, is not
functioning, is not properly
installed, or is not operating
properly.
On steadily Input is receiving voltage.
Off Input voltage is not present.
On steadily Power supply has exceeded
recommended temperature.
Off Power supply is within the
recommended temperature or the
power supply is not on.
Copyright © 2010, Juniper Networks, Inc.
mode and
INPUT 0
are properly energized,
LED indicates that the