1200 Baud Data Modem
Site Developed & Maintained
by RCS Ltd
RC-V23 RS232 Modem is a general purpose 1200 Baud Half Duplex Modem, designed
especially for telemetry and remote data transfer applications using inexpensive
“voice grade” telemetry lines and data radios. It uses Bell 202 for the tone
standard and provides an inexpensive solution to interfacing computers and
microcontrollers to radio links. The modem utilizes FSK audio tones to provide
reliable communications over narrow bandwidth channels.
The modem is easily interfaced to radios designed for either telemetry
or voice communications (hand-held, mobile or base). The data interface
is designed to be compatible with standard RS-232 levels.
The total power consumption is less than 25 milliwatts,
making it ideal for battery powered applications. The modem
has it’s own micropower voltage regulator, allowing it to operate from
a single polarity unregulated power source from 9-31VDC.
Audio - 290mv max (Lo/Hi-Z)
Receive Audio - 300mv (nom)
PTT - 1A Relay
(min), 31VDC (max) 5mA
or half duplex
14.8” x 2.5cm”