A031 NMEA 0183 Multiplexer with SeaTalk* Converter
$140.00
Need to consolidate all your marine data?
The A031 combines up to 3 NMEA inputs with a Seatalk bus, making this an effective way to view all your marine data anywhere on your boat via your mobile phones, tablet and laptop (with the added option to connect to a NMEA chart plotter).
In stock (can be backordered)
Description
Our A031 NMEA 0183 Multiplexer with SeaTalk* Converter has three NMEA 0183 inputs (listener-ports), one SeaTalk* input, one NMEA 0813 output (talker-port), a WiFi interface, and a USB port which will enable the user to connect to host devices such as phones, chart plotters, PCs, laptops, and tablets.
The multiplexer combines NMEA data that is received on the listener ports and sends this data to the talker port, the WiFi interface and the USB port simultaneously. The USB port can also be used for configuration of specific WiFi and NMEA port settings.
The built-in SeaTalk* to NMEA converter translates SeaTalk* data into NMEA sentences. This data is then combined with NMEA data received on the other inputs. SeaTalk* is converted into NMEA sentences but not vice-versa. The SeaTalk* bus is a single-cable system and connects all instruments serially. Only one SeaTalk* input is needed.
Every NMEA input on the A031 is galvanically isolated, also called opto-isolation. Galvanically isolated input prevents unwanted currents flowing between the instruments and the multiplexer (this prevents equipment damage and interference with radio signals).
- Very sophisticated NMEA 0183 and Seatalk* multiplexer
- No router needed
- Multiplexer: Combines up to 3 NMEA 0183 inputs with Seatalk*
- Converts Seatalk* to NMEA 0183
- Combined data stream can be accessed wirelessly (WiFi) or through the USB or NMEA ports
- Compatible with chart plotters, Windows, Mac OS X, Linux systems, Android and iOS
Features
| Feature | Description |
|---|---|
| NMEA Multiplexing | Supports up to three NMEA 0183 input devices |
| Input Protection | Galvanically isolated NMEA and SeaTalk input ports |
| Configurable Baud Rates | 4.8k, 9.6k, 38.4k input and output |
| NMEA Output | Differential NMEA output with galvanic isolation |
| Simultaneous Output | Wireless and USB output at the same time |
| WiFi Access Point | Connects up to 4 devices simultaneously |
| Protocol Conversion | SeaTalk to NMEA 0183 protocol converter |
| Power Supply | Wide DC voltage range: 12–35 V |
| OS Compatibility | Windows 7/8/10, Mac OS X, Linux, Android, iOS (initial configuration requires Windows) |
| RS232 Compatibility | Supports older RS232 devices via optional Protocol Bridge (AS03) |
Function Diagram
Available to add to your order
Protocol Bridge:
| Document Type | Link |
|---|---|
| Set Up Guide |  |
| User Manual | |
| Driver |  |
| Firmware | |
| Configuration Tool | |
Unboxing
Connections
| Connection | Specification |
|---|---|
| SeaTalk Input Connector | Provides connection to the SeaTalk network for data input. |
| NMEA Input | Accepts NMEA 0183 data from compatible marine instruments. |
| NMEA 0183 Output | Outputs multiplexed NMEA 0183 data to chart plotters or other devices. |
| WiFi Interface | Supports TCP/IP monitoring, configurable SSID and password via A031 configuration app. Operates in Ad-hoc (peer-to-peer) or Station mode (via router/cloud). Enables long-range, multi-device, and remote access as long as instruments are powered. |
| LED Indicators | LEDs display status for Power (8), NMEA In (2, 3, 4), NMEA Out (5), and SeaTalk (1). |
| USB Connector | Provides USB connectivity for data output and configuration. |
What’s included?
- 1 x A031
- 1 x USB-B cable
- 1 x setup guidebook
FAQ – How to connect NMEA0183 RS422 to older RS232 devices.
This product uses the NMEA 0183-RS422 protocol (differential signal), however some older chart plotters or instruments may use the older NMEA-RS232 protocol (single-ended signal).
To ensure A031 compatibility with any older NMEA0183 device, check if your device uses NMEA0183 RS422 or RS232
- NMEA0183 RS422 devices’ wiring is compatible ‘out of the box’
- NMEA0183 RS232 will require a Protocol Bridge (AS03) to connect your wiring
.
Connecting the A031 to an older (RS232) instrument or chartplotter is not a problem, simply order the AS03 Protocol Bridge. Our AS03 Protocol Bridge connects NMEA-RS232 wiring to MNEA0183-RS422 and vice versa, using a simple ‘Plug ‘n’ Play’ connection, with no setup or configuration needed.
You will probably need an AS03 if you are connecting to an older Garmin, Raymarine or Standard Horizon device. The easiest way to check is to look at the input/output connections on the device that you will connect the multiplexer to. If the input/output connections on your device (chart plotter, depth reader, etc.) have a TX, RX or GND connection, you will need to use a protocol bridge.
If in doubt contact us for advice.
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