TX56/56A and TX57/57A Installation Manual
5 April 2022
01776-00-01
Issue AD
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Trig Avionics
Page 5
Auxiliary
audio input
A single connection to allow audio annunciators or ident
tones to be routed to the headphones and speaker.
Auxiliary audio input is not routed to mono audio output.
Music audio
input
A two channel music input to allow connection of a stereo
audio signal of 1.5Vrms into a 600 ohms load. Audio is
routed to the headphones only.
OUTPUTS
Speaker
output
A speaker output suitable for a cabin speaker with
impedance of 4 ohms or greater.
Audio routing: Received audio and auxiliary input.
Headphone
outputs
Two stereo headphone outputs suitable for conventional
aircraft headsets with impedance in the region of 150 –
600 ohms.
Audio routing: Intercom, received audio, auxiliary and
music inputs, transmitter sidetone
Mono audio
output
A mono audio output designed to connect to an aircraft
audio panel with an impedance of 600 ohms.
Audio routing: Received audio, transmitter sidetone
The 44 way D-type interface provides the following services:
INPUTS
DESCRIPTION
Power input
The Nav receiver has a separate power input from the
Com radio. It operates on 11 to 33 volts DC.
OBS Resolver
Inputs
Conventional four wire D/E/F/G input from an external
OBS.
OUTPUTS
Nav composite
output
A VOR/LOC composite audio signal for instruments with
built-in converters.
Nav audio
output
Audio output for Nav voice and ident connection to audio
panel.
Содержание TX56
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