HP storageworks 2/32, Installation Manual

Page: 27 / 138

Introduction
27 Edge 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 Appendix B .
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 ) is pressed and held for three seconds, the switch
performs an IML that takes approximately 30 seconds and resets the:
■ Microprocessor and functional logic for the CTP and loads firmware from
FLASH memory.
■
Ethernet LAN interface, causing the connection to the HAFM server 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.