Appendix 8: Digital Interface
A8.1.5
Serial interface: input ports
Heading, log, wind, depth and navigation sensors
Photo Coupler
HCPL061N
AIS transponder
Photo Coupler
HCPL061N
Absolute maximum rating
Input
Forward current: 50mA
Reverse voltage: 3V
Output
Supply voltage: 7V
High level output voltage: 7V
Low level output current: 50mA
AP-94
330k
RD-A
RD-B
82k
RD-A
RD-B