32 Installation Guide (AA-RSTZD-TE, July 2004)

Introduction

27Edge Switch 2/32 Installation Guide

Power Supplies

Redundant, load-sharing power supplies step down and rectify facility input

power to provide 3.3 volts direct current (VDC), 5 VDC, and 12 VDC to the CTP.

The power supplies also provide input filtering, overvoltage protection, and

overcurrent protection. Either power supply can be replaced while the switch is

operational.

Each power supply has a separate CTP connection to allow for independent AC

power sources. The power supplies are input-rated at 100 to 230 volts alternating

current (VAC).

Power supply requirements are listed in .

Connectors and Indicators

Connectors and indicators include the:

■ Initial machine load (IML) button.

■ Ethernet LAN connector.

■ Power and System Error LEDs (green power (PWR) and amber system error

(ERR) LEDs).

■ FRU status LEDs (green and amber status LEDs associated with FRUs).

■ Maintenance port (RS-232).

Initial Machine Load Button

When the IML button (Figure 1 on page 25) is pressed and held for three seconds,

the switch performs an IML that takes approximately 30 seconds and resets the

following:

■ Microprocessor and functional logic for the CTP and loads firmware from

FLASH memory.

■ Ethernet LAN interface, causing the connection to the HAFM appliance to

drop momentarily until the connection automatically recovers.

■ Ports, causing all Fibre Channel connections to drop momentarily until the

connections automatically recover.

An IML should only be performed if a CTP failure is indicated. Do not IML the

switch unless directed to do so by a procedural step in this manual or by the next

level of support. As a precaution, the IML button is flush mounted to protect

against accidental activation.