Quark-elec Manual
7 of 20
2022
5. Connecting
Disconnect all power sources before connecting your equipment!
5.1. Connecting to the NMEA 2000 network
The A032 is pre-fitted with a five-core screened cable for the NMEA 2000 connection, fitted with a male
micro-fit connector. Simply connect the cable to the network backbone or using a T-piece connector.
Figure 3: Pin NMEA 2000 male micro-fit connection
The main communication channel of a NMEA 2000 network is a NMEA 2000 backbone to which NMEA
2000 devices connect. The NMEA 2000 backbone must be powered from a stable 12V DC power supply
and always requires two termination resistors.
Please note 12.0V power for the A032 unit comes from the NMEA 2000 backbone.
5.2. Connecting to a NMEA 0183 Device
A pre-fitted five-core screened cable is provided for connecting the A032 to other NMEA 0183 devices.
The user can use the configuration tool to setup NMEA 0183 input and output baud rate if required.
Wire Colour
Wire Function
Blue
NMEA OUT -
White
NMEA OUT +
Black
NMEA IN -
Grey
NMEA IN +
Brown
GND
Default Baud Rate settings:
The A032 is pre-set to frequently used baud rate settings for your
convenience. If you wish to use other settings, default settings can be changed using the Configuration
tool. See the configuration section of the manual and the configuration instructions on the CD provided.
Although the A032
’s NMEA 0183 interface is based on the RS422 communication protocol (differential
ends), it also supports NMEA0183-RS232 interface devices (single end). The following tables provide
the wiring information for each type.
QK-A032 wire
RS422 device terminals
NMEA 0183
Output
NMEA
NMEA Input+ *[1]
NMEA output-
NMEA Input-
NMEA 0183
Input
NMEA input+
NMEA *[1]
NMEA input-
NMEA output-
Connection
Default NMEA 0183 Baud Rate
NMEA Input
4800bps as default
NMEA Output
38400bps as default, adjust if required
