SENA Parani-SD200L - Manual (Page 13)

13
Table 3-2 The Parani-SD200L LED Indicators
Indicator Power LED Standby LED Connect LED
Mode0 Green (every 0.5 sec) ┏┓ Red (every 0.5 sec) ┏┓ Off
Mode1 Green (every 0.5 sec) ┏┓ Off Green (every 1 sec) ┏┓
Mode2 Green (every 0.5 sec) ┏┓ Off Green (every 3 sec) ┏┰┓
Mode3 Green (every 0.5 sec) ┏┓ Off Green (every 3 sec) ┏┰┓
Connected Green (every 0.5 sec) ┏┓ Off Green ┏━━━━━━━
Low Battery Green (every 0.5 sec) ┏┓ Red (every 0.2 sec) ┏┓
charging Green (every 0.5 sec) ┏┓ Red ┏━━━━━━━
Full charging Green ┏━━━━━━━ Red (every 0.5 sec) ┏┓
3.3. Serial Ports
The applicable settings for serial ports are as follows.
Table 3-3 The Parani-SD200L Serial Port Settings
Serial Port Settings Values
Baud rate 1200, 2400, 4800, 9600, 19200, 38200, 57600, 115200, 230400
Data bite 8
Parity No parity , Even parity, Odd parity
Stop bit 1 , 2
Hardware Flow Control Use, No Use
The values in box are the factory defaults. The flow control setting is configurable only through dip
switch.
3.4 Data Bit
Parani-SD200L supports only 8 data bit. In the case of 7 data bit and even/odd parity, use SD 8 data
bit and none parity. At this time, master and slave are SD, ESD or MSP series. But 7 data bit and none
parity is not support.
3.5 Hardware Flow Control
Parani-SD200L plugged into its host system transmits data from host to the other side Bluetooth
device. This data is saved temporarily in the internal buffer of Parani -SD200L 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 a transmission delay. If the host sends more data when the
buffer is full, buffer overflow will make Parani-SD200L malfunction consequently. In order to prevent
this buffer overflow, Parani-SD200L works as follows.
When using hardware flow control, Parani-SD200L disables RTS so that it stops receiving any further
data from the host when the buffer becomes full. RTS will be re-enabled again to begin receiving data
from the host when the buffer has created more room for more data.
When hardware flow control is not being used, the Parani-SD200L clears the buffer to secure room for