JRC J-NAV 500, Instruction Manual

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GPS Navigator J-NAV500
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When a PC (Personal Computer) is connected to this unit, the output level must be
set to TTL when data is input from the PC since an RS-422 setting could damage the
PC and this unit.
4.20 Setting Data Output and transmit memory data
CAUTION
Data transmissions with external equipment can be performed using the data input and output connec-
tions of the power cable.
• Output level
The output level when data is exchanged with external equipment (NMEA0183 data output,
memory I/O) can be set to TTL or RS-422.
The output level must be set before data is exchanged with external equipment.
The following two types of data are supported in communications with external equipment.
• Output data
GPS data conforming to the NMEA183 format and navigation data (version 1.5/2.1 switching
function) are output (For details, see Appendix C, “NMEA0183 Output Sentence and Data
Format.”)
• Memory data I/O
The J-NAV500 is to transfer the waypoint and route memory contents of the internal memory to
external equipment and to re-load the memory from the equipment. (See Appendix D, “Waypoint/
Route Plan Data In/Output.”)
Display example
[STATUS S/F MENU] display mode [Special Function] display mode [Special Function Data Output] display mode
[Special Function Memory In/Out] display Mode