Chassis fan module slot 3
4
Power supply unit slot 1
1
Chassis fan module slot 4
5
Chassis fan module slot 1
2
Power supply unit slot 2
6
Chassis fan module slot 2
3
LEDs
The switch has LEDs on both the front and back of the switch to indicate the status of different system
components during bootup tests and online operation. The following tables describe the location of each LED
and the meaning of its color:
Table 1: Chassis Activity LEDs for the Switch
State
Status
Color
Function
Indicator
Either of the following conditions exists:
• The system is not receiving sufficient
power from the PSUs.
• The operating system is not running.
Off
Off
Chassis
Power/Health
PWR: Power
LED
(front panel of
the chassis)
Both PSUs are installed and operational.
Solid On
Green
Either of the following conditions exists:
• A PSU has failed.
• A PSU has been removed.
Solid On
Red
Cisco MDS 9124V-K9 Switch Hardware Installation Guide
6
Overview of Cisco MDS 9124V-K9 Switch
LEDs