T4000 Six-Input Dc Power Supply Leds; Table 57: Power Supply Leds - Juniper T4000 Hardware Manual

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T4000 Six-Input DC Power Supply LEDs

Table 57: Power Supply LEDs

LED Color
Green
INPUT
—One
PRESENT
per input
–
—One per Blue
DC OK
power supply
–
—One Yellow
OVERTEMP
per power
supply
–
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Documentation
Copyright © 2018, Juniper Networks, Inc.
T4000 Six-Input DC Power Supply LEDs on page 77
Maintaining the T4000 Power System on page 338
Troubleshooting the T4000 Power System on page 363
The LEDs on the faceplate of each power supply (see
status of the power supply. The
on the faceplate of the power supply. A power supply failure also triggers the red alarm
LED on the craft interface.
Table 57 on page 77 describes the six-input DC power supply LEDs on the faceplate.
State
On steadily
Off
On steadily
Off
On steadily
Off
T4000 Power System Description on page 75
Maintaining the T4000 Power System on page 338
Troubleshooting the T4000 Power System on page 363
Chapter 7: Power System Components and Descriptions
Table 57 on page
, , and
DC OK OVERTEMP INPUT PRESENT
Description
Input is receiving voltage within the required range of –40 V through
–72 V.
Input voltage is not present, or the voltage is not within the required
range of –40 V through –72 V.
When input 0 and at least one other input is properly energized
and the power switch is ON, this input indicates that the power
supply is functioning normally.
Power supply is starting up or is not receiving any input voltage.
The power switch on the power supply faceplate or the customer
site external circuit breakers might be off. A fault might have
occurred.
Power supply has exceeded the recommended temperature and
has been powered off.
The power supply is within the recommended temperature, or the
power supply is not receiving any input voltage.
77) indicate the
LEDs are located
77