Furuno FS-1570 - Manual (Page 199)

APPENDIX
AP-21
2. Schematic diagram
05P0731
T-IF BOARD
RD3_A
RD3_B
TB6 R58
R59
10
10
J3 P201 P301
..
.
..
.
24 < 41 < > 41 >
25 < 42 < > 42 >
R60
330
S2
OPEN: IEC 61162-1 (NMEA 0183)
SHORT: CIF
R59
100
CR11 1
3
U18
PC-400
4
5
05P0742(FS-1570)
05P0743(FS-2570)
MOTHER BOARD T-CPU BOARD
C29
100P
C28
100P
J1
1SS355
IEC 61162-1
05P0732
Load requirements as a listener
Isolation: Optocoupler
Input impedance: 450Ω
Max. voltage:
±15 V
Threshold: 4 mA