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NM-251BRC 
Baud Rate Converter 
(User Guide)
 
Introduction, Input, Outputs, Connections Dip switces
Order - Quotation request
Picture
Introduction

NM-251BRC is a baud rate converter that allows interconnection of talkers and listeners with different baud rates
 
Input

NM-251BRC has one input port  that can be configured according to configuration table. 
  
General Purpose Output port

NM-251BRC has five general purpose output ports that are able of transmitting NMEA sentences in both RS422 and TTL signal levels, depending on the connection topology and each one can fan out one instrument. All outputs have the same baud rate as per configuration table
 
Connections

  The NM-251BRC can be connected as shown in figures 1, 2 and 3 using RS-422, TTL or both signal level type outputs.
 
Picture
Figure 1
Connection diagram for NM-251BRC using only RS-422 outputs

Picture
Figure 2
NM-251BRC using only TTL outputs

Picture
Figure 3
Connection diagram for NM-251BRC using RS-422 and TTL outputs

DIP swithces


The Dip-switches 3,4 configuring input baud rate


INPUT SETTINGS

DIP-SW 3

DIP-SW 4

4800

OFF

OFF

9600

ON

OFF

19200

ON

ON

38400

OFF

ON


The Dip-switches 1,2 configuring output baud rate


OUTPUT SETTINGS

DIP-SW 1

DIP-SW 2

4800

OFF

OFF

9600

ON

OFF

19200

ON

ON

38400

OFF

ON