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Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide
OL-22168-01
Chapter1 Product Overview
Fan Module
Fan Module The fan module provides cooling and proper airflow when only one power supply module is installed.
The fan module is hot-swappable.
Caution Both slots must be occupied either by two power supply modules or a power supply and a fan module.
Do not run the switch with an empty slot unless you are replacing a faulty power supply or fan module.
Running the switch with an empty slot triggers an alarm.
Each fan module contains three fans. The switch can operate safely if one fan fails. Afan failure triggers
an alarm. When a fan fails, replace the fan module immediately.
Table1-12 Power Supply Module Status LED
Color System Status
Green The power supply module is installed, output is OK, all internal fans OK, and power
switch is ON.
Red The power supply module is installed, output has failed or one of the internal fans has
failed, power switch is ON.
Off The power supply module is installed, power switch is OFF, no input power, or invalid
input power.
Table1-13 Power Supply Input LED
Color System Status
Green The power supply module is installed, AC or DC input power is OK, power switch can
ON or OFF.
Amber The power supply module is installed, AC or DC input power is insufficient or not present
and a redundant power supply is functioning properly.
Off The power supply module is installed, no input power present at both power supply
modules.