MULTIPLEX NMEA 183
In has 3 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 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, Seaclear.
Multiplexer characteristics
Is just a single board sealed in epoxy, is cheaper and resistant to the humidity inside a boat. There are not serviceable parts inside, is to install below the instruments panel
We don't need 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.
Inputs 1 and 2 have 75
bytes of buffer, enough for a GPS and the third input has a 35
bytes buffer, 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 higher traffic devices) and a wind instrument
without conflict.
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
NMEA
OUTPUT totem pole LSTTL 0 - 5 V current 0,01 A.
Output
RS 232 C. Standard