Mif (Rs-232C, Rs-485) - Furuno FS-1575 Service Manual

15. MIF (RS-232C, RS-485)

The Submenu-3 "MIF" allows for the remote control of the FS-xx75 system using the
MIF command from the terminal software of a PC such as hyper terminal or Tera Term.
MIF setting is used to determine electrical specifications for the data Tx line.
For example, setting "MIF" to "RS-232C" activates the RS-232C terminal of the
[REMOTE] port and deactivates the RS-485 terminal.
Setting [REMOTE] Port Pin No.
RS-232C #2: SD
RS-485 #21: REM_TD-A
Reference)
1) MIF specification
• Transmission system: Serial
• Synchronous system: Asynchronous system
• Communication system: Half-duplex
• Transmission rate: 4800 bps
• Signal format:
Start bit: 1 bit
Parity bit: 1 bit (Even)
Signal end: <CR>, <LF>
2) Examples of MIF commands
Control Setting Item
TX frequency
RX frequency
Type of radio wave
AGC
SQ
NB
SP
TX start/stop
TUNE
RF GAIN
TX POWER
ITU channel
DUP MODE
CONFIDENTIAL (internal use only)
This confidential document is used only by FURUNO authorized persons.
It is strictly prohibited to reproduce the document in whole or in part without prior written permission of FURUNO.
#3: RD
#23: REM_RD-C
#22: REM_TD-A
(Current Loop)
Data bit: 7 bits
Stop bit: 2 bits
Table 4.7.7 Example of MIF Command List
Command Parameter
Composed of 6/7 digits with the last digit on the
FT
order of 10 Hz (e.g. FT218200).
Composed of 6/7 digits with the last digit on the
FR
order of 10 Hz (e.g. FR218200).
0=LSB, 1=SSB (J3E), 2=AM (H3E), 3=Not used
EM
4=CW (A1A), 5=TELEX (J2B), 6=FAX (F3C)
AG 0=OFF, 1=SLOW, 2=FAST
SQ S=ON, R=OFF
NB S=ON, R=OFF
SP S=ON, R=OFF
TX S=ON, R=OFF
TU ―
RF 00 - FF
FS-1575:1=LOW, 2=MID, 3=HIGH
PO FS-2575/5075:0=LOW2, 1=LOW1, 2=MID,
3=HIGH
I + Band (2 digits) + CH (3 digits) (e.g.
CH
CHI04001)
0=SIMPLEX, 1=SEMI-DUPLEX,
DU
2=FULL-DUPLEX
4-80
4.7 SERVICE
#24: REM_RD-H
(Current Loop)