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Why would I need a NMEA Buffer?

NMEA buffers are useful or absolutely necessary for any size container for many reasons:

NMEA2000 N2K 4 Way Connector for Yacht



1. Most NMEA instrument outputs can only drive one or maybe two receive inputs of other instruments. If more devices need to output NMEA data, the NMEA data must be buffered before splitting it among the instruments. Otherwise, NMEA data may become corrupted when the signal quality drops below the desired level.



When using multiple NMEA devices per output, the exact number possible will depend on the total cable length, cable quality, and instrument input. Longer overall cable length, poor cable resistance and capacitance, and device inputs that do not meet the NMEA 0183 specification (which specifies a maximum 2 mA leakage current) will reduce the maximum number of devices that can be driven.



2. When multiple devices are connected together, grounding issues may occur, causing interference and/or excessive current draw from the ship's battery (which may cause damage).



To avoid this, use an NMEA buffer, which isolates all NMEA 0183 devices from each other and prevents any ground loops from forming. Since there are no ground loops, all NMEA 0183 equipment is not damaged by ground loop currents.



This allows installers to connect NMEA 0183 systems without worrying about which devices are true NMEA 0183 devices (with optically isolated inputs) or the resulting ground loops.



If you are in need of a reliable and professional company for NMEA 2000 cable, look no further. Our company is dedicated to providing high-quality and cost-effective NMEA2000 cable that meet your specific needs and requirements. Salt corrosion testing and IP67 waterproof testing are all 100% OK. Pls feel free to contact


NMEA 2000 4 Port T-Connector NMEA buffer 4 Way Connector

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