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Fast Ethernet Switching System User's Guide
CPU Module
The CPU module, displayed in Figure 11, is at the top of the chassis. This is the only slot
it will work in. If it is not at the top of the chassis, the DES-5024 will not work. See
Table 2: Power LED, for an explanation of the Power LED. See Table 3: CPU Module
LED for an explanation of the LEDs on the CPU module.
Power
Figure 11: CPU Module
The meaning of the Power LED is displayed in Table 2: Power LED. The meaning of the
remaining LEDs is displayed in Table 3: CPU Module LED.
Power
The power LED lights when the DES-5024 is powered on. The purpose is to confirm that
the DES-5024 is getting adequate power.
Table 2: Power LED
Status
Color
On
Green
Off
Dark
Status
The Status LED indicates the status of a firmware download. The LED will increment
from left to right while firmware is being downloaded. It will be dark during normal
operation.
Diagnostic
The Diagnostic LED is used to diagnose any problem on the DES-5024. If any part of the
DES-5024 fails the POST or if a problem occurs the Diagnostic LED displays a code
indicating the problem. See Chapter 6 for the meaning of the LED code and a
recommended action.
Utilization
The Utilization LED indicates the utilization of the DES-5024's CPU. It increments from
left to right. The higher the number the greater the utilization.
LEDs
Utilization
Meaning
DES-5024 is powered on
DES-5024 is powered off, check power
cable and connection
Diagnostic
Status
24
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