Chapter 4 Installation and Maintenance
Fan Module Overview
Cisco SCE 2000 4xGBE Installation and Configuration Guide
4-20 OL-7824-04
Note Use 12 AWG (2.5 mm) copper wire only with hex or loop connectors. Ring terminals must be UL
approved and suitable for 12 AWG wire.
Step 4 Using the number 2 Phillips screwdriver, securely fasten the protective plate to the terminal block.
Step 5 Connect the DC power line input leads to the DC power source through a fast 10A circuit breaker.
Step 6 Turn the on/off switch to the on () position.
Step 7 Look at the IN and OK LEDs on the power supply unit and the corresponding Power LED on the
front panel. If the new DC-input power supply unit is operating properly, these LEDs will be
glowing green.
Step 8 Ensure that the power supply is properly aligned and the installation screw is tightened.
This completes the steps for reconnecting the DC-input power supply to the SCE 2000 platform.
Fan Module Overview
The fan module provides cooling for the internal components. The fan drawer is a field-
replaceable unit containing five fans, and is installed at the right rear of the SCE 2000 platform.
When a fan malfunctions, the fan module should be replaced as promptly as possible. Although it
is possible for the unit to function for some time with one non-functioning fan, this is not optimal
or recommended.
Figure 4-16: SCE 2000 Fan Module
When a fan failure occurs, the environment monitor will send an error message to the console. An
SNMP trap indicating that the fan is not functioning properly is also sent. Note that a fan failure is
often audible.

Removing and Replacing the Fan Module

The following sections explain how to remove and replace a fan module in a SCE 2000 platform:
Removing the Fan Module (on page 4-21)
Replacing the Fan Module (on page 4-21)