Furuno 1715 - Page 25

4.7 Program updating
21
2. Using RS232C-RS422 converter
1) Connection
The PC is connected to the NMEA port on the rear panel of the display unit. See Fig.4-11.
RS422 PORT
1
2
3
4
J1352
(NMEA)
RS422 TX_H
RS422 TX_C
MODEL1623
5
6
7
+12V
GND
SHIELD
RS422 RX_H
RS422 RX_C
RS422 RX_H
RS422 RX_C
RS422 TX_H
RS422 TX_C
RS232C PORT
SERIAL PORT
Fig.4-11
2) Procedure
See the procedure in the section “Direct connection of PC”.
To check program number;
1. Turn on the unit while pressing the MENU key.
2. The installation menu appears. Select “TEST” and press the right arrow key.
3. The program number is displayed in the test display. (0359216-0X.0X)
4. Turn off the unit.
PC
RS232C-RS422 converter
MODEL 1715
Current Loop
Current Loop
GND