Figure 48: Delta Ac Power Supply Leds; Table 62: Delta Ac Power Supply Leds - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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110

Figure 48: Delta AC Power Supply LEDs

Table 62: Delta AC Power Supply LEDs

LED Color
AC OK —One per Green
power supply
–
—One per Blue
DC OK
power supply
–
Yellow
OVER
TEMP —One per
power supply
–
T640 Three-Phase Delta and Wye AC Power Supply Description on page 106
T640 LED Overview on page 464
Troubleshooting the T640 Power System on page 476
T640 AC Power Requirements on page 137
L1 L2 L3
AC DC OVER
OK OK TEMP
Power supply LEDs
State Description
On steadily The AC terminal block is receiving
voltage.
Off The AC terminal block is not
receiving voltage.
On steadily Power supply is functioning
normally.
Blinking Power supply is starting up, or is not
functioning or operating properly,
or is not properly installed.
Off The power supply fails or the AC
terminal block is not receiving
voltage.
On steadily Power supply has exceeded
recommended temperature.
Off If the
steadily, this LED indicates that
power supply is within the
recommended temperature.
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and are on
DC OK AC OK