Kongsberg Seatex Seapath 200, Installation Manual

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Seatex Seapath 200 Installation Manual, rev. 13 Installation
21
Note
It is important to insert a wire between pin 24 (LGND) and pin 27 (Shutoff) on
the user side (x1) in the MRU junction box in order to establish RS-422
communication between the MRU and the Processing Unit. Otherwise it will be
no communication between these two components.
3.4.2.2 External input and output serial lines
Seapath communicates with external equipment through RS-232 and RS-422 serial lines. It is
recommended to input one or more differential GPS correction signals to Seapath and
optionally heading from a gyro compass or similar device. Output data are position, velocity
and attitude to navigation computers, dynamic positioning systems etc., hereafter called
host
systems. No hardware or software handshake is used on the serial lines.
The configuration of serial lines and their default settings are:
Line Type Data
com5 RS-232 or 422
(default 232) User configurable input or output (default output data to host)
com6 RS-232 or 422
(default 232) User configurable input or output (default output data to host)
com7 RS-232 or 422
(default 232) User configurable input or output (default output data to host)
com8 RS-232 or 422
(default 232) User configurable input or output (default output data to host)
com9 RS-232 or 422
(default 232) User configurable input or output (default gyro compass input)
com10 RS-232 or 422
(default 232)
User configurable input or output (default DGPS corrections
input)
All communication ports are set default to RS-232 communication when delivered from
Seatex. In the SCC software the user can select which type of communication (RS-232 or
422) to be used on each port. See section
Properties
in Chapter 8.4.5.3 for details on
selection between RS-232 and 422 communication in the SCC software.
To ensure a best possible position solution from Seapath based on the available differential
GPS correction in the area of operation, up to four lines are available for differential GPS
corrections. If more than one line is needed, lines used for output data or external heading in
the default configuration must be used.