User manual

Functional Description
MEN Mikro Elektronik GmbH 20
20F302-00 E4 – 2010-12-16
2.4 Front Panel Status LEDs
The F302 has a number of status LEDs at its front panel.
Table 6. Front-panel status LEDs
2.4.1 General Status LEDs
Table 7. General status LEDs
2.4.2 Service LEDs
Table 8. Service LEDs
The micro controller uses the LEDs connected to it to indicate the reason for an
error during startup. The status LED will blink or light up as listed in Table 9, Error
codes signaled via service LEDs until the system is restarted or completely powered
off. The supported error codes are as follows:
LED Description
PWR General Power Good
RST Reset
S1 Service LED 1
S2 Service LED 2
LNK 1 Port 1 link/data receive
ACT 1 Port 1 link/data receive
LNK 2 Port 2 link/data receive
ACT 2 Port 2 link/data receive
... ...
LNK 8 Port 8 link/data receive
ACT 8 Port 8 link/data receive
LED Description
PWR On: Switch is powered on
RST On: Reset signal is active
LED Description
S1 Micro controller LED (function depends on software)
S2 Micro controller LED (function depends on software)