40
Nera F77
Continuing the Saturn tradition
The NMEA 0183 input is a 4 - 15 V current loop interface located on the rear panel
of the MCU.
Data input format:
Baud rate 4800
Data bits 8 (D7=0), parity none
Stop bit 1
The Heading input on pins 1 & 2 recognizes the following sentences:
HDT and HDG
The HDT syntax is:
$ - HDT,xxx.x,T*hh<CR><LF>
where $- = start of sentence and Talker ID
xxx.x = heading in degrees
T = true
hh = check sum (can be omitted)
<CR><LF> = carriage return & line feed
TEL
4
ISDN
RS-422
TEL
2
ISDN
ISDN ISDN
ISDN
SILENCE
SW
IND
NMEA
NMEA
TEL
1
TEL
3
ISDN ISDN
TEL 3
USB
TEL 4
ISDN
TX
TX
RX
RX
TEL
4
TX
TX
RX
RX
TX
TX
RX
RX
TX
TX
RX
RX
TX
TX
RX
RX
HEADING SENSOR
MCU connector panel
LIST1-B(-) LIST1-A(+)
NMEA-0183 input sources (complies with IEC 61162-1)
Summary of Contents for F77
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