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AVALON RF, INC. Page 4
RT423 User’s Guide & Operating Manual
2. Specifications
2.1 User Interface - On/Off Switch.
The RT423 transceiver has an on/off switch. This shuts off power to
the entire transmitter.
2.2 Setup.
Since the RT423 works as a pair, the pair is shipped with the suffix
indicating the operating frequency e.g- RT423-650 indicates the unit
is programmed for 650 MHz. If you have ordered multiple sets,
please ensure the correct pair is used. The user has to connect the
antennas, power & data cables & the link is ready to work. There is
no specific setup procedure.
2.3 Electrical Interface.
The transmitter has the following interfaces:
2.3.1 Power Input
a) The transmitters operate off a 7Vdc-16Vdc unregulated voltage
source.
a) This input is switched and protected against reverse polarity.
b) Typical power input current consumption is 180mA when receiving
and 300 mA when transmitting.
2.3.2 Data Input.
a) The data input accepts RS485 signals.
b) Input signal is differential & complies to RS485 specifications.
c) The input interface is 2 wire, labeled ‘A’ (also called -) and ‘B’ (also
called +).