by nuova » Mon Sep 21, 2009 1:50 pm
The NM-281A is a two channel NMEA-0183 input / seven or eight channels NMEA-0183 output multiplier. It enables data distribution from two NM-0183 sources (primary and secondary with priority encoding) to all NMEA-0183 instruments through seven or eight talker ports and PC connection through RS-232. In addition the NM-281A has control terminals that can be connected to a two position external switch to force connection of the first or second input to all outputs. Data from PC¢s charting system can be delivered back to the autopilot from the same RS-232 port which acts bidirectional (talker and listener).
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