Installation Guide

Table Of Contents
11. Connect the power to the AC or DC source.
LEDs on the power supply faceplate show the status of the power supply with the following colors:
For a DC supply, the DC IN and DC OUT LEDs should be green, indicating the power supply is providing power to the
device components.
For an AC supply, the AC OK and DC OK LEDs should be green, indicating the power supply is providing power to the
device components (refer to the previous figure).
If the ALM LED is lit (amber), the power supply has failed.
For information about troubleshooting this problem, refer to Management module LEDs on page 31.
Replacing fan assemblies
You can replace a fan or a fan control module while the router is powered on and running. The fans and fan control modules are located
on the rear panel of the router.
NOTE
Fan trays are hot swappable. However, a hot-swap procedure should be completed within five minutes so the device will
continue to function correctly without any fans. It is recommended that you disconnect the power supply from AC or DC power
before installing or removing the fan tray.While fan assemblies are being replaced, and there is an increase or decrease in fan-
speed due to that, syslogs or console messages are not generated.
Replacing fan assemblies in all 32-slot routers
This section describes how to replace fan assemblies in MLXe 32-slot routers.
CAUTION
Removal of Brocade NetIron MLXe Series 32 rear fan modules allows access to bus bars and backplane. Avoid contact with
these parts. There are hazardous energy levels at these locations.
A 32-slot router has ten fan assemblies located at the rear of the router. They are numbered as indicated in the following figure.
You can remove and replace a fan assembly while the router is powered on and running.
NOTE
To avoid overheating of the router, remove one fan assembly at a time, and replace it promptly. Wait for the LED on the fan
assembly being replaced to turn green before replacing another fan assembly. Do not remove all fans from the device at once.
Before replacing a fan assembly, have the following items available:
A new fan assembly, which you can order from Brocade
A small flat-blade screwdriver
An ESD wrist strap with a plug for connection to the ESD connector on the front of the device.
DANGER
For safety reasons, the ESD wrist strap should contain a series 1 megaohm resistor.
Use the following steps to replace a fan assembly.
1. Put on the ESD wrist strap and ground yourself by inserting the plug into the ESD connector on the router.
2. Using the screwdriver, remove the screws that secure the fan assembly faceplate to the rear of the router.
Maintenance and Field Replacement
Brocade NetIron MLXe Series Hardware Installation Guide
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