Operating Instructions

Figure 2 Programming Adaptor
FREQUENCY PROGRAMMING
The ST600 has an internal memory which can store up to 128 RF channels (16
randomly programmed and 112 sequentially programmed). The frequency and set-up
information is programmed into the unit by a synchronous PCM interface protocol.
The software supplied with the ST600 transmitter is the STSRn00.exe program. The
software can be run on a PC with the serial port connected to PL1 of the ST600
transmitter via a suitable adaptor as shown in Figure 2. If the read-back function is
desired, then PL1 pin 10 of the transmitter must be connected to pin 2 of the PC serial
port via a buffer circuit. A 1k pull-up resistor to +5V must also be provided as shown.