16 x isolated channels Discrete Interface

INTRODUCTION The NM-DIS is 16 discrete channels to NMEA-0183 converter. It enables connection between systems that output their status using dry contact (e.g. output relays) and AC or DC signal interfaces. OPERATION The NM-DIS samples every one of the 16 inputs and then outputs its status in a NMEA-0183 sentence according to the following format: 1 2 3 4 n | | | | $SNXDR,a,x,a,DXXCXX,*hh<CR><LF> Field Number: 1) Transducer Type 2) Status data: x=0 when voltage at input channel is less than 7Volt DC or AC (OFF) or x=1 when voltage at input channel is more than 7 Volt DC or AC (ON) 3) Units of measurement (not used) 4) Channel address: Portion DXX of channel’s address is unique for every device and it can be programmed via Dip Switches within the range of D00 to D15 according to the following table

Product manual:
- NM-DS1 Disctrete Installation & Operation manual

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