Furuno FM-8800D/8800S - Manual (Page 114)

APPENDIX
AP-14
Digital Interface (IEC 61162-1 Edition 2)
Input sentences
GGA, GLL, RMC, ZDA, GNS
Schematic diagram
05P0773
7 TXD-H
J2
8
9
10
U15
6
7
1SS355
4
3
1000p
C65
TXD-C
RXD-H
RXD-C
100P
R70
10
R65
10
C64
100P
JP1
R69
120
1
220
R74
220
R73
1000p
C69 C70 CR3
1
2
PC400
4
Load requirements as listner
Isolation Optocoupler
Input impedance 560 ohms
Max. Voltage ±15V
Threshold 4 mA
Output sentence
TLL