72
Appendix B LEDs
MPU LEDs
Figure 54
LEDs on the MPU
Table 27
Firewall running status LED description
LED Status
Description
(green)
Management
port/HA port link
status LED
Off
No link is present.
On
A link is present.
(yellow)
Management
port/HA port
data transmission
LED
Off
No data is being received or transmitted.
On
Data is being received or transmitted.
(green)
CF card LED
Off
No CF card is present or the CF card is not recognizable.
On
A CF card is in position and has been detected.
Flashing
The CF card is performing a read or write operation. In this
state, do not remove the CF card.
(green)
Run LED
Off
No power input is available, or the MPU has failed.
Slow
flashing
(1 Hz)
The MPU is operating properly.
Fast
flashing
(8 Hz)
The application software is being loaded (in this case,
never power off the device or hot-swap the MPU; otherwise
the MPU may be damaged).
Resettin
g
Off after the firewall is reset, and flashes after the firewall
is started.
Summary of Contents for F5000
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