Brocade 6520 Hardware Reference Manual
25
53-1002705-01
DRAFT: BROCADE CONFIDENTIAL
Chapter
4
Removal and replacement of power supplies and fans
In this chapter
•
•
Power supply removal and replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
•
•
SFP transceiver removal and replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Introduction
NOTE
“Installation and safety considerations”
before servicing.
The field replaceable units (FRUs) in the Brocade 6520 can be removed and replaced without
special tools. The Brocade 6520 can continue operating during the FRU replacement if the
conditions specified in the procedure are followed.
Before beginning installation
CAUTION
This document describes how to change field replaceable units (FRUs) for units with either a
port-side air exhaust or a port-side air intake. You must replace a failed unit with the same type of
unit.
This applies to both power supplies and fans.
A new FRU must have the same part number (P/N) as the FRU being replaced. The
manufacturing P/N is located on the top of the FRU.
If a mismatched power source or fan is installed by mistake, a warning is sent to the console. The
warning messages will be similar to the following:
•
For a power supply or combined power supply/fan mismatch -
???
[WARNING, 6520,
MISMATCH in PSU-FAN FRUS Air Flow direction. Replace PSU with fan air flows in same
direction
.
•
In the case of an airflow mismatch, the remaining functional fans run at high speed to provide
adequate cooling.
•
If one fan fails, the remaining fans go to high speed to maintain proper cooling until the failed
fan is replaced.
