NMEA Buffer Expander Distributor Splitter Multiplexer
What is NMEA buffer?
The NMEA buffer is used to distribute NMEA data communicating between navigation equipments.
The NMEA output of a device can be connected to a maximum of one or two devices.
NMEA buffer can be used to distribute data to more devices. We designed the following NMEA buffers with different features.
1- NM-2128 NMEA BUFFER DUAL AUTO SWITCH 2 IN / 8 OUT – DATA COMBINER
The NM-2128 NMEA distributor has two independent isolated data inputs and can distribute data to up to eight outputs. The NM-2128 features three operating modes, auto-switching mode, manual-dual mode and combiner mode.
In automatic mode, priority belongs to the first data input. If the NMEA data on the first input is lost, it automatically switches to the second data input.
In dual mode the distributor can be used as two independent distributor with one input and four outputs.
In combiner mode, it combines data from two inputs and sends it to eight outputs.
Special software solutions can be further developed on request.
Order Information
- NM-2128-M-1 Manual Mode: 1 Input 8 Outputs.
- NM-2128-MD Manual-Dual Mode: 2 Input 8 Outputs. Dual mode: Operate as two independent buffers with 1 input and 4 outputs.
- NM-2128-A Auto Switch Mode: If input NMEA 1 is lost for the set time, the buffer will automatically switch to NMEA input 2.
- NM-2128-C Combiner Mode: It combines data from 2 inputs and sends it to eight outputs.
Technical specifications
| Supply Voltage | – 1KV Isolated 9-32VDC power supply – Internal resettable Fuse – Reversed polarity protection |
|---|---|
| Input | – 2 X Independent galvanic isolated (RS232-RS422-RS485) – 5000Vrms |
| Output | – 8 X RS422 Output Ports – Over Current, Surge Voltage Protection |
| Speed | – 2400, 4800, 9600, 38400, 115200 bps |
| Protocol | – NMEA0183, IEC61162 |
| Auto Mode | – Auto Switching (Adjustable Switching Time 5, 10, 15, 20 sec.) – Automatic input signal detection and channel selection |
| Optional | – NMEA Combiner – Combining 2 channels and sending output – Configurable custom software for your needs |
| Status LEDs | – NMEA Inputs – Power – System – Data Output LEDs |
| Connectors | – Screw type terminals |
| Case-Dimensions-Weight | – ABS DIN Rail Mount Box – Width: 105 mm – Depth: 86 mm – Height: 58 mm – 150gr |
Datasheet
2- NM-2028 NMEA BUFFER DUAL AUTO SWITCH 2 IN / 8 OUT
The NM-2028 NMEA distributor has two independent isolated data inputs and can distribute data to up to eight outputs.
The NM-2028 features three operating modes, single mode, dual mode and auto-dual mode.
In single mode, data from one input is distributed to eight outputs.
In dual mode the distributor can be used as two independent distributor with one input and four outputs.
Auto Switch / Dual Mode: If input NMEA 1 is lost for 30 seconds, the buffer will automatically switch to NMEA input 2. Two independent buffers with 1 input and 4 output signals according to the DIP switch setting.
Order Information
- NM-2028-M Manual Mode: 1 Input 4 or 8 Outputs.
- NM-2028-MD Manual-Dual Mode: Operate as two independent buffers with 1 input and 4 outputs.
- NM-2028-AD Auto Switch / Dual Mode: If input NMEA 1 is lost for 30 seconds, the buffer will automatically switch to NMEA input 2. Two independent buffers with 1 input and 4 output signals according to the DIP switch setting.
Technical specifications
| Supply Voltage | – 1KV Isolated 9-32VDC power supply – Internal resettable Fuse – Reversed polarity protection |
|---|---|
| Input | – 2 X Independent galvanic isolated – 5000Vrms |
| Output | – 8 X RS422 Output Ports – Over Current, Surge Voltage Protection |
| Speed | – 2400 to 230400 bps – Outputs automatically track the input baud rate |
| Protocol | – NMEA0183, IEC61162 |
| Modes | – Manual – Dual – Auto |
| Status LEDs | – NMEA Inputs – Power |
| Connector | – Screw type terminals |
| Case-Dimensions-Weight | – ABS DIN Rail Mount Box – Width: 105 mm – Depth: 86 mm – Height: 58 mm – 150gr |
Datasheet
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