Send documentation comments to mdsfeedback-doc@cisco.com.
1-5
Cisco MDS 9216 Switch Hardware Installation Guide
78-16165-01
Chapter 1 Product Overview
Fan Module
The Cisco MDS 9216 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 about
how to configure the power supplies, refer to the Cisco MDS 9000 Family
Configuration Guide.
The power supplies are illustrated in Figure 1-2.
Figure 1-2 Cisco MDS 9216 Switch with 845 Watt Dual Power Supplies
Fan Module
The Cisco MDS 9216 Switch supports a hot-swappable fan module with four fans.
The fan module provides 270 CFM (cubic feet per minute) of cooling, allowing
400 Watt of power dissipation per slot. Sensors on the supervisor module monitor
the internal air temperature. If the air temperature exceeds a preset threshold, the
environmental monitor displays warning messages.
If one or more fans within the fan module fail, the Fan Status LED turns red.
Individual fans cannot be replaced, you must replace the entire fan module. The
Cisco MDS 9216 Switch continues to run if the fan module is removed, as long as
preset temperature thresholds have not been exceeded. This means you can swap
out a fan module without having to bring the system down. To replace a fan
module, see the “Removing and Installing the Fan Module” section on page 2-31.
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
