2 ā General Description
Chassis Controls and LEDs
2-4 59096-02 C
S
2.1.2
Chassis LEDs
The chassis LEDs provide status information about switch operation. Figure 2-3
identifies the chassis LEDS on a model 5600 switch. The model 5602 switch LED
arrangement is the same. Refer to āPort LEDsā on page 2-6 for information about
port LEDs.
Figure 2-3. Chassis LEDs
2.1.2.1
Input Power LED (Green)
The Input Power LED indicates the voltage status at the switch logic circuitry.
During normal operation, this LED illuminates to indicate that the switch logic
circuitry is receiving the proper DC voltages. When the switch is in maintenance
mode, this LED is extinguished.
2.1.2.2
Heartbeat LED (Green)
The Heartbeat LED indicates the status of the internal switch processor and the
results of the POST. Following a normal power-up, the Heartbeat LED blinks
about once per second to indicate that the switch passed the POST and that the
internal switch processor is running. In maintenance mode, the Heartbeat LED
illuminates continuously. Refer to āHeartbeat LED Blink Patternsā on page 5-3 for
more information about Heartbeat LED blink patterns.
L
AL AL AL
ALA
L
A
L
0
1
2
3
4
5
System Fault LED
(Amber)
Heartbeat LED
(Green)
Input Power LED
(Green)
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