J4300 And J6300 Cooling System - Juniper J2300 User Manual

Each power supply has an LED located on the power supply faceplate.
Table 16 describes the J6300 power supply LED.
Table 16: J6300 Power Supply LED
State
Off
Green
Red
For information about site power preparations, see "Power Guidelines,
Requirements, and Specifications" on page 545. For information about
connecting the router to power and ground, see "Connecting Power
to the Services Router" on page 43.
Power supplies are hot-removable and hot-insertable. You can remove and replace
a redundant power supply without powering down the router or disrupting the
routing functions. To avoid electrical injury, carefully follow the instructions in
"Replacing Power System Components in a J6300 Router" on page 533.

J4300 and J6300 Cooling System

The cooling system consists of the following components:
The airflow produced by these fans keeps router components within the
acceptable temperature range (see Figure 12).
A fan on the midplane
A fan on the Routing Engine's processor
An internal fan on the power supply
J4300 and J6300 Services Router Hardware Features
Description
No power flowing to the power supply.
Power supply is working correctly.
Power supply is starting up, or has failed.
System Overview
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