ABACOM Technologies TX-AUDIO-24/AE-D Manuale - Pagina 3

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Operating Instructions
Receiver:
Review the RX-AUDIO-24 manual for full details on the receiver module.
The demo board accepts the RX-AUDIO-24 receiver.
The receiver module is inserted into the socket provided on the demo board, taking careful note of cor-
rect orientation. Correct orientation is with the module label facing the Volume Control
An external DC power supply in the range of 7V to 12VDC is connected to the DC power supply input. A
suitable power supply may be a wall adaptor or a 9V or 12V battery. The power supply DC plug is centre
positive.
Connect a stereo audio amplifier to the RCA output connectors. The audio load impedance is around
10K ohm.
Alternatively, connect a stereo headphone to the 3.5 mm stereo jack (minimum 12 ohm impedance)
Refer to the RX-AUDIO-24 user manual for information on configuring the operating channel selection,
channel ID and scrambling requirements, and set the DIP switches according to your preferred parame-
ters. For proper operation, ensure the parameters equate to those chosen for the transmitter
The USER_BIT pin header is to output data that may be sent from the transmitter side . This output is
provided for developers wishing to transmit a data stream over the link for purposes such as:
•
Remote control command
•
Title of music composition being transmitted
Transmitted data has zero effect on the audio signal being received.
Power Supply input:
7 to 12Vdc
Centre positive
Right Audio Out:
Module DAC_R output
decoupled via a 10uF
capacitor
Left Audio Out:
Module DAC_L output
decoupled via a 10uF
capacitor
ABACOM Technologies, Inc.
DIP switch
See table for switch functions
21
26
27
32
Headphone socket
3.5mm
Decoupled via 100uF
capacitors
•
383 Bering Ave • Toronto • ON • M8Z 3B1 • Tel +1(416)236-3858 • Fax +1(416)236-8866
www.abacomdirect.com
1
10
11
20
Headphone volume control
USER-BIT
Ground
Data
Switch to change channel
in TACT mode
Receiver Pin #1
CT-INU pin connected
CT-INU pin on module
Comms LED
Power LED