Furuno DS-80 - Manual (Page 25)

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4 DIGITAL INTERFACE (IEC 61162-1
Edition 2)
4.1 I/O Sentences
Input sentences of IEC61162_RX port
GGA, VTG
Output sentences of IEC61162_TX1, IEC61162_TX2 ports
VBW, VLW (Talker: VD)
Transmission interval
3 s for VBW; 1 s for VLW
Data transmission
Data is transmitted in serial asynchronous form in accordance with the standard referenced
in 2.1 of IEC 61162-1. The first bit is a start bit and is followed by data bits,
least-significant-bit as illustrated below.
The following parameters are used:
Baud rate: 4800
Data bits: 8 (D7 = 0), parity none
Stop bits: 1
D0 D1 D2 D3 D4 D5 D6 D7
Start
bit Stop
bit
Data bits