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AP3-1
APPENDIX 3 Digital Interface
(IEC 61162-1 Edition 2)
Input sentences
GLL, RMA, RMC
Schematic diagram
IEC1162 (NMEA)
CHASSIS
1
RD-A
J2
RD-B
2
3
4
5
6
7
8
9
10
1
2
3
05P0653
J9
P609
W9
C1
1000p
R2
470
CR1
U18
1
3
+12V
1SS133
6
4
TLP121-GB
-12V
R1
4.7k 4.7k
R47
Load requirements as listner
Isolation Optocoupler
Input impedance 470 ohms
Max. Voltage ± 15V
Threshold 4 mA