Raymarine NMEA Multiplexer Specifications download pdf (Page 12)

are made depends on whether the device has a differential or

single ended output, as follows:

Power supply

The NMEA Multiplexer operates from a dc supply voltage in the

range 8 V to 30 V and provides protection against reversed

polarity. It is recommended to connect the NMEA Multiplexer to

the same power source or circuit breaker as the ships instruments

and/or computer.

Protect the power supply with a 0.5 A fuse. The wires used to

connect the power supply must be less than 50 m in length and

have a total cross-sectional area of at least 0.2 mm

. The

following examples represent the minimum requirement:

Device with

differential NMEA input

NMEA in +

Device with

single-ended NMEA input

Ground

NMEA in +

NMEA in -

NMEA Multiplexer

NMEA Out a

NMEA Out b

Shld

Note: NMEA inputs on Raymarine products are differential.

D7586-1

Cable

shield

NMEA Multiplexer

NMEA Out a

NMEA Out Com

Shld

Cable

shield

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Raymarine NMEA Multiplexer Specifications Page 12