Replacing Fan Assemblies; Replacing Fan Assemblies In All 32-Slot Routers - Brocade Communications Systems MLX Series Installation Manual

Replacing fan assemblies

9. For a 3000W DC power supply only, crimp the #2 AWG power supply wire in the power lugs.
10. Connect the AC power cord or DC power lugs to the power supply faceplate.
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
•
If the ALM LED is lit (amber), the power supply has failed.
For information about troubleshooting this problem, refer to
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 MLX and XMR 32-slot routers.
Removing the rear fan modules on a 32-slot router provides 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
You can remove and replace a fan assembly while the router is powered on and running.
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
260
Figure 155).
Table 28 on page 186.
Brocade MLX Series and Brocade NetIron XMR Installation Guide
Figure 156.
53-1004195-02