Brocade Communications Systems 6510 Installation Guide download pdf (Page 41)

Removal and replacement of power supplies and fans

● Introduction..................................................................................................................... 41

● Removing and replacing a power supply and fan assembly........................................... 42

Introduction

NOTE

Read the Installation and safety considerations on page 17 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.

The Brocade 6510 supports the following types of power supplies.

• AC power supply with port-side air intake (exhaust FRU). This unit moves the air from the port side to

the nonport side of the switch.

• AC power supply with port-side air exhaust (intake FRU). This unit moves the air from the nonport

side to the port side of the switch.

• DC power supply with port-side air exhaust (intake FRU). The DC power supplies function the same

way as AC power supplies except for the following points:

‐ The handle is on top and the power supply connector is below.

‐ There is no on/off switch in the power supply.

‐ The cable and the connector are different from the AC power supplies.

‐ The pin outs on the DC power supply connector from left to right are +, -, and gnd. The plug

has a polarity label.

‐ The power supply LED interpretations are same as AC power supply.

‐ The DC-DC power cord is thicker and heavier than the AC power cords. Hence, ensure that

the screws on the plug are used to tighten and hold the power cable to connector on the

power supply firmly.

‐ The DC port-side air exhaust (intake FRU) model has a different part number and has an

orange arrow with 'I' label on the top right corner of the non-port side as well as on top of the

FRU, similar to the AC intake FRU.

NOTE

The two FRU assemblies concurrently installed in the chassis must be of the same type (AC or DC),

model (airflow direction), and part number. If the airflow directions are different, an error is generated on

the console. The two power supply and fan assembly FRU units are hot-swappable if they are replaced

one at a time. They are identical and fit into either slot.

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.

Brocade 6510 Hardware Installation Guide

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Brocade Communications Systems 6510 Installation Guide Page 41