To connect the B400 over USB an isolated NMEA 0183 (RS422) - USB adaptor will need to be installed. For uni-directional communication the supplied 18-way data accessory cable can be used to connect the USB adaptor, however if bi-directional communication is required the fully populated 18-way data cable (301-0096) will also need to be purchased from em-trak.
Wiring information for each port is detailed in the B400 user manual and quick start guide. Other manufacturers may use different signal names, however the following general guidelines will apply when connecting the adaptor:
- positive signals should be connected together
- negative signals should be connected together
- transmit signals should be connected to receive signals and
vice versa
If you have any questions on connecting a USB adaptor please contact support@em-trak.com