S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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Cisco MDS 9200 Series Hardware Installation Guide
OL-19588-01
Chapter 1 Product Overview
Power Supplies
Power Supplies
The Cisco MDS 9200 Series supports dual hot-swappable 845-W AC power supplies, each of which can
supply sufficient power to the entire chassis should one power supply fail. The power supplies monitor
their output voltage and provide status to the supervisor module. To prevent the unexpected shutdown of
an optional module, power management software only allows a module to power up if adequate power
is available.
The Cisco MDS 9200 Series power supplies can be configured to be redundant or combined. By default,
they are configured as redundant, so that if one fails, the remaining power supply can still power the
entire system. For information on how to configure the power supplies, see the Cisco MDS 9000 Family
NX-OS Fundamentals Configuration Guide.
The power supplies, which are accessed from the rear of the chassis, are illustrated in
Figure 1-24
.
Figure 1-24
Cisco MDS 9200 Series with 845-W Dual Power Supplies
Table 1-12
describes the LEDs for the Cisco MDS 9200 Series power supplies.
1
Power supply switch
3
Power supply handle
2
AC power connection
4
Power supply LEDs
PWR-845-AC
100-240V 12-5A
50/60 Hz
INPUT OK
FAN OK
OUTPUT FAIL
ALL FASTENERS MUST BE FULLY ENGAGED
PRIOR TO OPERATING OF POWER SUPPLY
PWR-845-AC
100-240V 12-5A
50/60 Hz
INPUT OK
FAN OK
OUTPUT FAIL
ALL FASTENERS MUST BE FULLY ENGAGED
PRIOR TO OPERATING OF POWER SUPPLY
4
3
94002
1
2
PS1
PS2
Table 1-12
LEDs for the Cisco MDS 9200 Series Power Supplies
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.