MULTIPLEX SEA TALK

In has one input SEA TALK and 2 inputs NMEA183  and one NMEA 183 output  and other RS 232 C. The two outputs send the same information, witch is the ordered output of the three inputs.

Application
Could be used to introduce in a notebook through his RS 232 C input, the information of different instruments with NMEA and SEA TALK  output.
 For example to have in the Oziexplorer the  information of position from the GPS and the deep from the deep sounder, and record booth in the track.

 Or  send data to your special program or performance programs like Pccenter, Ockam or  Kiwitech.

Seatalk Specs

We don't talk Seatalk just listen.

We translate the information received from the deep sounder, knot meter and  wind  instruments into the equivalent NMEA sentences.

We don't have any configuration, just plug a play.

We have just three input, our experience says that is enough in most cases, and more  inputs  need higher speed in the output and this make the handling more complicated. 

Input 1 have 81 b ytes and input 2 have 51 bytes of buffer, enough or a GPS and the third input has a 5  bytes buffer that are needed for the Seatalk, but we have a 250 bytes off spool, any incomplete message is discarded,  the complete input and output operation is interrupt driven, and with this configuration you  can put 2 GPS, (their are the high traffic devices) and Seatalk
If any buffer became full, (in the case of receiving wrong information for example) the  complete buffer is cleared waiting for a new correct message.
 

Installation manual
 

SPECS.
WIDE: 125 mm
HIGH:    55 mm. It has four holes in the corners to fix the board.
VCC INPUT: 9 - 16 v
CURRENT: 0,01 A
NMEA INPUT  0 -3 / 5 V
SEA TALK INPUT 0-12V 10K Terminator
NMEA OUTPUT totem pole LSTTL 0 - 5 V current 0,01 A.
Output RS 232 C.  Standard

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