User manual

Page 6© 2013 Active Research Limited
Connecting a Standard NMEA 0183 Device
Actisense supplies a pre-tted four-core screened cable for connecting devices that comply to the NMEA 0183
specication. Actisense ISO-Drive output circuitry and OPTO input circuitry allows many different types of device to be
connected without the need for conguration. Voltage levels are managed automatically as well as accepting both
differential and ground referenced connections safely.
The standard wiring connection can be seen in “Figure 1 - NMEA 0183 Connections”.
Note: Refer to “Status LEDs” on page 10 for LED behaviour.
Wire Colour NMEA 0183 PCB Label
Shield/Screen Ground ISO GND
Blue ISO Out B / - OUT B / -
White ISO Out A / + OUT A / +
Black Opto In B / - IN B / -
Red Opto In A / + OUT A / +
Table 1 - NMEA 0183 Connections
Do not connect
NMEA
Listener
NMEA
Talker
B/-
A/+
B/-
A/+
GND
TX
GND
RX
/
/
/
/
Figure 1 - NMEA 0183 Connections