Cisco ME 3800X Installation Manual page 42

Power Supply Module Description
Each power supply module is cooled by three internal fans. A fan failure triggers an alarm. When a fan
fails, replace the power supply module immediately.
Both slots must be occupied either by two power supply modules or a power supply and a fan module.
Caution
Do not run the switch with an empty slot unless you are replacing a faulty power supply or fan module.
Running the switch with an empty slot triggers an alarm.
Figure 3-1
2
3
1 AC input power supply module
2
Power supply module LED
3
Power input LED
Figure 3-2
2
3
1 DC input power supply module 4
2
Power supply module LED
3 Power input LED
Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide
3-2
AC Input Power Supply Module Handle Side
1
P S U O K
A C
4
DC Input Power Supply Module Handle Side
1
P S U O K
A C
4
Chapter 3 Installing and Removing AC and DC Input Power Supply and Fan Modules
5
6
4 Extraction handle
5
Power switch
6
AC power connector
5
6
Extraction handle
5
DC input power terminal block
6 Power switch
OL-22168-01