Airmar PB100 Technical Information download pdf (Page 13)

Connecting to a Combiner

The Combiner allows the WeatherStation data to be displayed simultaneously on

both an NMEA display and a PC. On the Combiner, the two auxiliary grommets

labeled AUX NMEA OUT can be used to connect additional devices capable of

displaying WeatherStation data (see Figure 7). All display devices

must

be NMEA

0183.

What does NMEA IN and NMEA OUT mean?

NMEA IN represents

input

for data ﬂowing into a NMEA device. An IN device is a

NMEA listener. NMEA OUT signiﬁes

output

for data ﬂowing out of a device. OUT

devices are NMEA talkers. The Combiner label

designates data ﬂow as viewed by

the device itself

. For example, the Combiner’s

output

should be connected to a

display’s

input

The

output

of any NMEA device (talker) may connect to the

inputs of multiple

devices

(listener). However, it is not permissible to connect the

output

of one

NMEA device to the

output

of another. If the need arises to provide data from the

outputs of two or more devices to the input of a given device, then a Combiner is

required.

Caution

: Be sure to connect a NMEA talker to the NMEA IN terminal and NMEA

listeners to the NMEA OUT terminals.

Caution

: When connecting NMEA devices to one another, the cable shield only

connects at ONE end of the cable, preferably at the device providing the NMEA

output.

power

supply

NMEA display

Airmar

or other sensor

Figure 7. Combiner installation

additional

display

additional

display

Weather

or additional

Smart™ Sensor

sensor

Station

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Airmar PB100 Technical Information Page 13

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