Brocade 6510 Hardware Reference Manual - Manual (Page 37)

Removal and replacement of power supplies and fans
● Introduction..................................................................................................................... 37
● Removing and replacing a power supply and fan assembly........................................... 37
Introduction
NOTE
Read the
Installation and safety considerations on page 15 before servicing.
The field replaceable units (FRUs) in the Brocade 6510 can be removed and replaced without special
tools. The Brocade 6510 can continue operating during the FRU replacement if the conditions specified
in the procedure are followed.
Removing and replacing a power supply and fan assembly
The Brocade 6510 fans are fixed inside the combined power supply and fan FRU to provide necessary
airflow to cool the whole system. There are two fans located in each FRU. The system software sets fan
speed and measures their speeds through the tachometer interface.
The power supply and fan assemblies come in two variations. One configuration moves the airflow from
the port side to the nonport side of the switch (nonport side exhaust) and the other moves the airflow
from the nonport side to the port side (port side exhaust). The two assemblies in the chassis must
match or an error is generated on the console.
The two power supply and fan assembly FRU units are hot-swappable if replaced one at a time. They
are identical and fit into either slot.
NOTE
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 FRU with a FRU of the same type.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 assembly 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, BR6510, MISMATCH in PSU-FAN
FRUS Air Flow direction. Replace PSU with fan air flows in same direction.
CAUTION
Ensure that the airflow direction of the power supply unit matches that of the installed fan tray.
The power supplies and fan trays are clearly labeled with either a green arrow with an "E", or an
orange arrow with an "I."
Brocade 6510 Hardware Reference Manual 37
53-1002174-08