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7.2.6 Auxiliary audio input

NOTE Only available on units ﬁtted with the EHX80 expansion board.

The expansion board upgrade on the RS87 allows an auxiliary

audio input - for example from a radio receiver or an entertain-

ment system - to be fed into the intercom / loudspeaker system.

The auxiliary input must be a line level signal (0.775V rms)

Connect the line out from the auxiliary source to the terminals

marked “Aux AF” as shown (Fig 7.10) -

Instruction Manual

Part No. E04297

7.2.7 NMEA0183 input

The inbuilt NMEA0183 processor allows navigational position

information to be received from a GPS or Chart Plotter. The

boat’s position is automatically transmitted when a Distress

Alert is initiated.

NMEA input must be of the 0183 format, version 2.0 - 3.0, out-

putting sentences GLL, RMC and ZDA at a Baud rate of 4800.

The NMEA Out connections from the GPS/Plotter should be

connected to the “NMEA In” terminals as shown (Fig 7.11) -

Terminal

Number

Wire

Colour(s)

Line Out +

Line Out -

Fig 7.10 - Auxiliary audio input terminal connections

Terminal

Number

Wire

Reference

Common Out -

Data Out +

Fig 7.10 - Auxiliary audio input terminal connections

Simrad RS87 Instruction Manual

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