Furuno FS-1570 Operator's Manual page 199

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