Promi SD205-OA User Manual – 2. Configurations
8
LED Indicators
Indicator
Power LED
Standby LED
Connect LED
Mode0
Green
┏━━━━━━━
Red
┏━━━━━━━
Mode1
Green
┏━━━━━━━
Green (every 1 sec)
┏┓
Mode2
Green
┏━━━━━━━
Green (every 3 sec)
┏┰┓
Mode3
Green
┏━━━━━━━
Green (every 3 sec)
┏┰┓
Connected
Green
┏━━━━━━━
Green
┏━━━━━━━
RS232-Tx and RS232-Rx LED are blinking accordingly when data is transmitted. For small data transmission, it may be
hard to recognize the quick blinking.
Serial Ports
The applicable settings for serial ports are as follows.
Serial Port Settings
Values
Baud rate
1200, 2400, 4800, 9600 , 19200, 38400, 57600, 115200, 230400
Data bit
8
Parity
No parity , Even parity, Odd parity
Stop bit
1 , 2
The values in box are the factory defaults.
Ì
Data Bit
Promi SD205-OA supports only 8 data bit. In the case of 7 data bit, please contact the technical support.
Ì
Hardware Flow Control
Promi SD205-OA plugged into its host system transmits data from host to the other side Bluetooth device. These data is
saved temporarily in the internal buffer of Promi SD205-OA and sent repeatedly until the transmission is completed
packet by packet. When the radio transmission condition is not good enough to send data promptly, it can cause the
transmission delay. If the host sends more data when the buffer is full, buffer overflow will make Promi SD205-OA
malfunction consequently. In order to prevent this buffer overflow, Promi SD205-OA works as follows.
Promi SD205-OA is always not not using hardware flow control, Promi SD205-OA clears the buffer to secure the room for
next data when the buffer becomes full. This means the loss of data. As the transmission data becomes large, the
possibility of data loss goes higher.
Reset to Factory Defaults
To turn back all the configurations to its factory settings, press the reset button depicted in Fig. 1-3. Press the reset
button with a narrow pointed tool like paper clip longer than 1 second. Reset works only when power is on.
Terminal Program
