NMEA Buffer

NMEA Buffer Expander Distributor Splitter Multiplexer Combiner – GPS NMEA Çoklayıcı

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 should be used to distribute data to more devices. We have designed the following NMEA buffers with different features.

NM-2128 NMEA BUFFER DUAL AUTO SWITCH 2 IN / 8 OUT

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 Auto mode, priority is always on the first 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. It also calculates checksum for each NMEA sentence and indicates if error.

Special software solutions can be further developed on request.

NM-2128 NMEA Buffer
NM-2128 NMEA Buffer

Order Information

NM-2128-M Manual-Dual Mode: 1 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 20 seconds the buffer will automatically switch to NMEA input 2.

NM-2128-C Combiner Mode: It combines data from two inputs and sends it to eight outputs.

Technical Specifications
Supply VoltageIsolated 9-32VDC power supply
Internal resetable Fuse
Reversed polarity protection
Input 2 X Independent galvanic isolated (RS232-RS422-RS485)
Output2 X 4 RS422 RS485
Speed4800, 38400, 115200 bps
ProtocolNMEA0183, IEC61162
OptionalAuto Switching / Manual Mode
Automatic input signal detection and channel selection
NMEA Combiner – Combining 2 channels and sending output
Checksum calculation each NMEA sentence and Error Indicator
Configurable custom software for your needs
Case-DimensionsABS DIN Rail Mount Box 105 x 86 x 58

NM-2028 NMEA BUFFER DUAL 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 two operating modes, single mode and dual mode. In dual mode the distributor can be used as two independent distributor with one input and four outputs. In single mode, data from one input and distribute it to eight outputs.

NM-2028 NMEA Buffer
Technical Specifications
Supply VoltageIsolated 9-32VDC power supply
Reversed polarity protection
Input 2 X Independent galvanic isolated
Output2 X 4 RS422, 1 X 8 RS422
Speed4800, 38400, 115200 bps
ProtocolNMEA0183, IEC61162
OptionalSingle Mode / Dual Mode
Case-DimensionsABS DIN Rail Mount Box 105 x 86 x 58

NM-11 NMEA BUFFER

Technical Specifications
Supply Voltage9-32VDC
Current Consumption100mA
Input 1 galvanic isolated
Outputs4 x RS-422 RS-485
Speed4800 – 38400 bps
ProtocolNMEA0183 IEC61162
NM-11 NMEA Buffer
NM-11 NMEA Buffer

Recommend NM-2128.


NM-18 NMEA BUFFER

Technical Specifications
Supply Voltage9-32VDC
Current Consumption150mA
Input1 galvanic isolated
Outputs8 x RS-422 RS-485
Speed4800 – 38400 bps
ProtocolNMEA0183, IEC61162
NM-18 NMEA Buffer
NM-18 NMEA Buffer

Recommend NM-2128.


AEP MP2x8i NMEA Buffer

MP2X8i NMEA Buffer
MP2X8i NMEA Buffer
Technical Specifications
Number of input ports2 (RS232 or RS422) Opto isolated
Number of output ports 8 (RS422)
Input/output speed (baud rate)4800 to 230400 bps
Power SupplyIsolated 9-36VDC
Reverse polarity input protection
Short circuit output protection
Optional Auto Switching Mode
Dual (Independent) Mode
Power consumptionTypical 0,6 W at 24 VDC
MountingWall mount (using four screws)