Calypso Nmea Connect Plus User Manual page 16

USB cable provided by Calypso Instruments has an additional black wire which is the
Shield, and should be left unconnected. This wire has a more matte colour than the
GND signal.
6.3 Connect NMEA 0183 interface
Identify the RS‐485 and Power connector. You must connect your NMEA 0183 wires
to the RS485 ports.
6.3.1 NMEA 0183 Input
To connect the ULTRASONIC Wired use the colour codes shown in the table below.
Wired Standar
NMEA OUT B/ ‐
NMEA OUT A/+
GND
The wires of power of the ULTRASONIC, must be connected to an external power
supply.
RS-485 POWER
PORT 2
Wired BLE/
Wired WIFI
NMEA OUT B/ ‐
NMEA OUT A/+
GND
RS-485
PORT 1
ULP 485
NMEA OUT A/+
NMEA OUT B/ ‐
GND
NCP
RS485 Input Connector
RS485 +
RS458 ‐
RS485 GND