Cisco Systems MDS 9200 Series manual Power Supplies, 1-35

Chapter 1 Product Overview

Power Supplies

Se 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 ck - d o c @ c i s c o . c o m

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 CLI Configuration Guide or the Cisco MDS 9000 Family Fabric Manager 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

	4
	PWR-845-AC	PWR-845-AC
1	INPUT OK		INPUT OK
	FAN OK		FAN OK
	OUTPUT FAIL		OUTPUT FAIL
2	100-240V 12-5A	100-240V 12-5A
	50/60 Hz	50/60 Hz
	ALL FASTENERS MUST BE FULLY ENGAGED	ALL FASTENERS MUST BE FULLY ENGAGED	94002
	PRIOR TO OPERATING OF POWER SUPPLY	PRIOR TO OPERATING OF POWER SUPPLY
	3

1	Power supply switch	3	Power supply handle
2	AC power connection	4	Power supply LEDs

Table 1-12describes the LEDs for the Cisco MDS 9200 Series power supplies.

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.

Cisco MDS 9200 Series Hardware Installation Guide

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