T4000 Six-Input Dc Power Supply Leds; T4000 Switch Interface Board (Sib) Overview; Table 19: Power Supply Leds - Juniper T4000 Hardware Manual

Related
Documentation

T4000 Six-Input DC Power Supply LEDs

Table 19: Power Supply LEDs

LED Color
Green
INPUT
—One
PRESENT
per input
–
—One per Blue
DC OK
power supply
–
—One Yellow
OVERTEMP
per power
supply
–
Related
Documentation

T4000 Switch Interface Board (SIB) Overview

Copyright © 2013, Juniper Networks, Inc.
the system. A single power supply can provide full power for as long as the router is
operational.
T4000 Six-Input DC Power Supply LEDs on page 45
Maintaining the T4000 Power System on page 186
Troubleshooting the T4000 Power System on page 204
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 19 on page 45 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 43
Maintaining the T4000 Power System on page 186
Troubleshooting the T4000 Power System on page 204
T4000 Switch Interface Board (SIB) Description on page 46
T4000-SIB Description on page 46
Chapter 3: T4000 Hardware Components Overview
Table 19 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.
45) indicate the
LEDs are located
45