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DC Power Supply LEDs in EX 3200 and EX 4200 Switches

The DC power supply in an EX 3200 or EX 4200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU) located on the rear panel. Table 1 describes the LEDs on the DC power supplies in EX 3200 and EX 4200 switches.

Table 1: DC Power Supply LEDs in EX 3200 and EX 4200 Switches

LED Label

Color

Description

LED A

Red

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

LED B

Red

LED A

Green

Inputs A and B are normal; output is normal.

LED B

Green

LED A

Flash Red

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

LED B

Green

LED A

Green

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

LED B

Flash Red

LED A

Flash Red

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

LED B

Flash Red

LED A

Off

There is no input; there is no output.

LED B

Off

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