NM-251A Dual-in NMEA buffer splitter 5-output (User Guide)
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Price ... 240.00 EURO
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Connections
Try to interconnect using RS-422 when possible. Available TTL output for older instruments are available.
Use the RS-232 Serial I/O for testing data and avoid connection of AC computers with DC powered instruments via RS-232
It is always better to install RS-422 ports in the computer to avoid RS-232 connections.
Use the RS-232 Serial I/O for testing data and avoid connection of AC computers with DC powered instruments via RS-232
It is always better to install RS-422 ports in the computer to avoid RS-232 connections.
Power Supply
The NM-251A can be powered within the range of 10-35 VDC. The nominal voltage of 24 Vdc is advised for powering the device in normal operation. Power input port has a protection for incorrect polarity connection of the supplying voltage.
LED indicator sequence
Ina LED ON |
Currently sampling from primary port Ina |
Inb LED ON |
Currently sampling from secondary port Inb |
Out 1/2 LED Flashing |
indicates data transmission to output port 1 and 2 |
Out 3/4 LED Flashing |
indicates data transmission to output port 3 and 4 |
Out5 LED Flashing |
indicates reception from RS-232 port and transmission to Out5 port |