Data Combiner

The KW909-FM connects up to eight NMEA 0183 inputs and combines the data to one output port. Applications include combining the data from several sources into a VDR, S-VDR, ECDIS or radar.


Received NMEA data is stored and forwarded on a first in first out basis. With  input and output ports that support 4800 – 38400 baud the KW909-FM is ideal for daisy chaining for applications with more than eight NMEA inputs 


  • Accepts up to eight NMEA 0183 inputs
  • Supports range of baud rates for compatibility
  • Can be daisy-chained, ideal for complex installations
  • Certified to IEC60945


Data Combiner



Nominal 24v DC at 100mA


NMEA 0183 or IEC 61162 ports Channel 1 will accept 4800 or 38400 baud (SW selectable). Channels 2, 3, 4, 5, 7 & 8 only accept 4800 baud. Channel 6 is auto sensing at 4800 or 9600 baud.

OUTPUT   Data is output on a first-message-in first-message-out basis. Excessive input data is discarded and an overload LED is lit. Each message is delayed by at least its length, 2.1 ms per character, and it also has to wait until the current message has finished sending. Output baud rate 4800 or 38400.

146 x 222 x 55mm