Japan Radio Co. JLR-7900, Инструкция по эксплуатации

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4.15.5 Setting a serial port
This display unit is equipped with three serial ports to send and receive data with external units. Since
each port can be set for input or output, set according to the purpose. However, as input/output of data
IN/OUT1 and data IN/OUT2 are commonly set, they cannot be set individually.
For instance, if data IN/OUT2 is set for input, data IN/OUT1 is automatically set for input.
In this case also, the baud rate and the output sentence can be set individually.
Determine the input output ports using the following table as the guideline.
Required port setting
Port setting
Data IN/OUT1 Data IN/OUT2 Data IN/OUT3
3 ports for output Output Output Output
3 ports for input Input Input Input
2 ports for output
1 port for input
Output Output Input
1 port for output
2 ports for input
Input Input Output
Although an output sentence, a cycle, and a bit rate can be set for each port, some bit rates and the
number of sentences may not be set. In this case, select the minimum sentence.
The following serial data can be set.
1) NMEA: Data is output in NMEA format. Available options are Version 1.5, 2.1, 2.3, and 4.0.
2) IEC:
Data is output in IEC format.
3) JRC ： Data is output in JRC format. The bit rate is fixed 1200bps.
4) ROUTE WPT
：
The destination, route, and track in a memory can be transmitted and received using
DATA IN/OUT2, 3. (Refer to 4.15.17 Outptting Waypoint, Route and Track" for
detail)
4.15.5.1 Setting transmission
The procedure for setting a serial port for transmission is shown below.
Sentence list
Setting port
Select an output format
Select SEND
Select BIT RATE
Select VERSION
(NMEA only)
Select an output cycle
Select an output sentence
BIT RATE selection screen
Procedure