T640 Four-Input 240-A Dc Power Supply Description; Four-Input 240-A Dc Power Supply - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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T640 Four-Input 240-A DC Power Supply Description

66
Table 30: Three-Input 240-A DC Power Supply LEDs (continued)
LED Color
—One per Blue
DC OK
power supply
Green
INPUT
—One
PRESENT
per input
OVER Yellow
TEMP —One per
power supply
T640 Power System Description on page 60
Powering On a DC-Powered T640 Router on page 162
Maintaining the T640 Power Supplies on page 194
T640 LED Overview on page 200
Four-Input 240-A DC Power Supply on page 66
Four-Input 240-A DC Power Supply Inputs on page 67
Four-Input 240-A DC Power Supply Load Sharing and Fault Tolerance on page 67

Four-Input 240-A DC Power Supply

Each four-input 240-A DC power supply weighs approximately 26.6 lb (12.0 kg) and
consists of four inputs, four 60-A circuit breakers, a fan, and LEDs to monitor the status
of the power supply. Figure 37 on page 67
State Description
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.
shows the four-input 240-A DC power supply.
Copyright © 2013, Juniper Networks, Inc.
mode and
INPUT 0
are properly energized,
LED indicates that the