Network Device Installation Guide

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Cisco MDS 9500 Series Hardware Installation Guide
OL-17467-02
Chapter 1 Product Overview
Power Supplies
Cisco MDS 9506 Power Supplies
The Cisco MDS 9506 Director supports the following types of power supplies:
• 1900-W AC power supply (AC input and DC output)
• 1900-W DC power supply (DC input and DC output)
Power is supplied to the Cisco MDS 9506 power supplies though PEMs in the front of the chassis. The
AC power requires an AC PEM, and the DC power requires a DC PEM.
The 1900-W AC and DC power supplies are similar in appearance (see Figure 1-11), except for the label
that indicates whether the power supply is AC or DC.
Figure 1-11 Cisco MDS 9506 Power Supply (1900-W AC or DC)
Table 1-3 describes the power supply LEDs for the Cisco MDS 9509 and 9506 Directors.
1 Power supply LEDs 2 Captive screws
INPUT OK
FAN OK
OUTPUT FAIL
94996
1
2
Ta b l e 1-3 Power Supply LEDs for the Cisco MDS 9509 and 9506 Directors
LED Status Description
Input OK Green AC input is good and power supply is functioning
normally.
Off Power supply is turned off or is not seated
properly in the chassis.
Fan OK Green Power supply fans are operating properly.
Off Fan is not operating or power supply is off.
Output Fail Red Power supply is not in a stable state. If this
indication continues after initial power on, check
that all connections are secure, including the
system fan tray.
Off Normal operation or power supply is turned off.