9-2 
 
3) Interface 
3-1) MID 
(1) Serial Transmission 
 
Channel Specification  Notes 
DATA IN/OUT1  RS-422  Input or Output  NMAE, IEC   
DATA IN/OUT2  RS-422  Input or Output  NMEA, IEC   
DATA IN/OUT3  RS-422  Input or Output  NMEA, IEC   
DATA IN/OUT4  RS-422  Input or Output NMEA, IEC  Daisy chain 
RS-485  RS-485  Input / Output  NMEA, IEC   
 
(1-1) NMEA 
• Specification:   NMEA 
•  Version:    Ver1.5, 2.1, 2.3, 4.0 
•  Bit rate:    4800, 9600,19200,38400bps 
• Data bit:    8bit 
• Parity:    None 
• Start bit:    1bit 
• Stop bit:    1bit 
• Output sentence: 
  ALR,ACK,APB,BWC,BWR,CUR,DBK,DBS,DBT,DPT,DTM,GGA,GLL,GNS,HDG,HDM, 
  HDT,MDA,MHU,MMB,MTA,MTW,MWV,RMB,RMC,ROT,RPM,RSA,THS,VBW,VDR, 
  VHW,VLW,VTG,VWR,VWTXDR,XTE,ZDA,ZTG 
•  Output interval:    1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s,9s, OFF 
Note) Some combinations of output sentence, bit rate, and output intervals may not be possible. 
 
(1-2) IEC 
• Specification:  IEC61162-1 ed.4 
 
(2) Contact signal 
 
 
 
 
 
3-2) Doppler Log 
(1) Serial Transmission (Only output for DATA IN/OUT2 ) 
Channel Specification  Notes 
RS-485 RS-485 Output NMEA, IEC  
 
(1-1) NMEA 
• Specification:   NMEA 
•  Version:    Ver1.5, 2.1, 2.3, 4.0 
•  Bit rate:    4800, 9600,19200,38400bps 
• Data bit:    8bit 
• Parity:    None 
• Start bit:    1bit 
• Stop bit:    1bit 
• Output sentence:  VBW,VLW 
•  Output interval:    1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s,9s, OFF 
 
(1-2) IEC 
• Specification:  IEC61162-1 ed.4 
 
(2) Contact signal 
 
 
 
Channel I/O  Notes 
CONTACT OUTPUT 200p/NM, 400p/NM 
CONTACT  INPUT  ACK, Input of external dimmer 
Channel I/O  Notes 
CONTACT  INPUT  Input of external dimmer