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21 December, 2001
2.4 ISDN TEST FUNCTION
2.4.1 LEDS
There are four LEDs on the G4 board. These LEDs show the status of the
machine.
Initial Settings
Initial check (if the flash ROM is updated)
Handshaking with the FCU ready
Standby Mode
Ready to communicate
Communication
Layer 1 activated
Link setup
B channel 1 connected
B channel 2 connected
LED 1
LED 2
2-17
ISDN TEST FUNCTION
LED 3
LED 4
O=ON, --=OFF
O
O
--
--
--
--
O
O
O
O
O
--
--
--
--
--
--
--
O
--
O
O
O
O
O
--
O
O
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