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MiniPlex-41
The MiniPlex-41 is our basic model NMEA multiplexer,
offering 4 galvanically isolated NMEA inputs, 2 NMEA outputs and one RS-232
interface.The MiniPlex-41 can be connected to a computer through
the RS-232 interface for computerized nagivation. Stand-alone operation is also
possible, in which case the RS-232 interface is only used to configure the
MiniPlex-41. This configuration is stored permanently.
The two NMEA outputs (talker ports) allow distribution of the NMEA data
to up to eight instruments.
The MiniPlex-41 is completely transparent to NMEA data. Incoming data
is simply stored and forwarded as complete NMEA sentences to the connected
instruments and/or PC.
Operating modes
The MiniPlex-41 has three modes of operation, which affect the routing of
NMEA data:
| Server:
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Data received on the NMEA inputs is sent to the computer. Data
received from the computer is sent to an NMEA output.
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| Hub:
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All received data (on the NMEA inputs and from the computer)
is sent to an NMEA output.
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| Auto:
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Automatic selection between Server and Hub mode. This
is a useful feature for people who have a GPS and an autopilot connected
to the multiplexer, and sometimes wish to sail without taking their
laptop on board. When the laptop is not connected, the multiplexer is in
Hub mode and cross track - and waypoint information from the GPS
is directly sent to the autopilot. When the laptop is connected and
sending data, the multiplexer automatically switches to Server
mode and the autopilot will receive cross - track and waypoint data from
the laptop instead.
This mode also serves as an emergency backup: when the laptop or
computer crashes, the multiplexer will fall back to Hub mode
after a timeout of 10 seconds.
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Seatalk® Conversion
When the Seatalk -> NMEA option is selected, NMEA In 4 becomes a SeaTalk®
compatible input, offering conversion of the most common SeaTalk datagrams on a
Raymarine® network into NMEA sentences.
| Specifications: |
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| Supply voltage:
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8-30VDC, secured against reversed polarity.
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| Current consumption:
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40mA (70mA max. with fully loaded talker ports)
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| Inputs:
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4 x NMEA-183/RS-422, galvanically isolated
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| Outputs:
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1 x RS-232, 2 x NMEA-183/RS-422
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| Operating modes:
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Hub, Server and Auto
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| Buffers:
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5 buffers of 1000 characters (4 x NMEA, 1 x RS-232)
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| Speed NMEA in:
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4800 Baud
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| Speed NMEA/RS-232 out:
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4800, 9600, 19200 or 38400 Baud
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| Dimensions:
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138 x 62 x 30mm
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A manual
can be downloaded.
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