Juniper Networks EX3200 사용자 설명서

NOTE: If the

AC OK

LED and the

DC OK

LED are unlit, either the AC power cord is

not installed properly or the power supply fuse has failed. If the

AC OK

LED is lit and

the

DC OK

LED is unlit, the AC power supply is not installed properly or the power

supply has an internal failure.

■

Connecting AC Power to an EX3200 or EX4200 Switch on page 146

DC Power Supply LEDs in EX3200 and EX4200 Switches

The DC power supply in an EX3200 or EX4200 switch is on the rear panel. Table 14
on page 30 describes the LEDs on the DC power supplies in EX3200 and EX4200
switches.

Table 14: DC Power Supply LEDs in EX3200 and EX4200 Switches

Description

Color

LED Label

Inputs A and B are normal, but there is no output.

Red

LED A

Red

LED B

Inputs A and B are normal; output is normal.

Green

LED A

Green

LED B

Input A has failed because the power supply fuse has failed,
input voltage is low, or there is a loose connection; output is
normal.

Flash Red

LED A

Green

LED B

Input B has failed because the power supply fuse has failed,
input voltage is low, or there is a loose connection; output is
normal.

Green

LED A

Flash Red

LED B

Both inputs have failed because the power supply fuse has
failed, input voltage is low, or there is a loose connection;
output is normal.

Flash Red

LED A

Flash Red

LED B

There is no input; there is no output.

Off

LED A

Off

LED B