Nemo Gateway
5
line (C) and shield (S). The ground line (C) is connected to both devices while the
shield (S) is only connected to the
Talker
.
(See page 13)
Default port configuration
The following table describes the default port configuration. These defaults may
be adjusted in Rose Point ECS or Coastal Explorer or the companion app.
Changes to the configuration can be made by following the steps in section
Device Configuration
of this manual.
Port Number
Protocol
Baud Rate
1
NMEA 0183-HS
38,400 baud
2,3,4
NMEA 0183
4800 baud
Typically, an AIS transponder would be connected to port 1, while other NMEA
0183 devices should be connected to ports 2, 3 and 4. If you are not connecting
an AIS or other NMEA 0183-HS device you may change the configuration and
use port 1 for a NMEA 0183 device.
Automatic Protocol (Baud Rate) Detection
The Nemo Gateway is capable of automatically detecting the protocol (baud
rate) of devices connected to the NMEA 0183 and NMEA 0183-HS ports. This
feature is enabled within Rose Point ECS, Coastal Explorer or via the Nemo
Gateway
companion app (available on iOS or Android).
NMEA 0183 Compatibility
The Nemo Gateway conforms to version 4.10 of the NMEA 0183 standard and is
compatible with older versions.
Note:
Current versions of the standard require use of differential pair wiring for
communication via the RS-422 protocol while older versions (and non-
compliant devices) use the RS-232 protocol which uses a single signal wire and
a ground connection.
