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RS-232C Level Converter
Description
The RS-232C Level Converter option connects to a computer through the DB9 connector on the
back of the SWL IR Remote unit. Just plug your computer into the SWL IR Remote and you can
use any software program that can communicate with your receiver. The FRG-8800 Level
Converter is fixed at 4800 baud and cannot be changed.
Operation
The Level Converter takes in characters from a computer and sends them on to the radio. Most
Level Converters just convert the electrical signals from RS-232C to TTL as required by the
radio. The SWL IR Remote has two serial channels (called a UART). One connects to the radio
using TTL level signals. The other channel is converted to RS-232C level signals and connects to
a computer.
