Bde - Furuno Felcom 250 Service Manual

2. BDE

(HUB) No reply from Modem.
This will be issued when abnormality is detected for the communication between the
MODEM board and the HUB board. Although there is a possibility that the
abnormality is observed as a temporary status, if the abnormality is confirmed to be
constant, communication will not be available. If the system does not restore to the
normal status after being reactivated, update the software, or replace the MODEM
board, HUB board, or the IF board.
(HUB) ROM fault.
This will be issued when there is an error for reading from / writing into the HUB
board ROM. Replace the HUB board.
(HUB) RAM fault.
This will be issued when there is an error for reading from / writing into the HUB
board RAM. Replace the HUB board.
(Modem) NMEA port fault
This will be issued when communication is not available for the NMEA port. Replace
the MODEM board.
(Modem) SIM port fault.
This will be issued when communication is not available for the SIM port. Replace
either the PANEL board or the MODEM board.
(Modem) RAM fault.
This will be issued when there is an error for reading from / writing into the MODEM
board RAM. Replace the MODEM board.
(Modem) Cipher module fault.
This will be issued when there is an error for KASUMI
replace the MODEM board.
Note) The encryption algorithm for W-CDMA and GSM
Note)
10-23
. Update the software and
10.5 Selftest