Furuno FELCOM 250

 9.1 Communication Unit: FB-2000
9-5
Fig. 9.1.9 MODEM (16P0274) side A
S1:
MODEM (HUB)
Rest SW
S2:
DIP_SW for
Tx_FPGA
debugging
S3:
DIP_SW for
CPU debugging
Fig. 9.1.10 MODEM (16P0274) side B
U49: EEPROM
Store IMEA
S4:
DIP_SW for
Rx_FPGA debugging
RS-232C port
S2, 3, 4: all OFF
Note) As for
each LED,
refer to 10-37