User's Guide

18
3.3. Serial Ports
The applicable settings for serial ports are as follows.
Table 3-3 The WCS-232 Serial Port Settings
Serial Port Settings
Values
Baud rate
1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200, 230400, 460800,
921600
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
WCS-232 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 WCS-232 7 data bit and none parity is not support.
3.5. Hardware Flow Control
WCS-232 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 WCS-232 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 WCS-232 malfunction consequently. In order to prevent this buffer overflow, WCS-
232 works as follows.
When using hardware flow control, WCS-232 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 WCS-232 clears the buffer to secure room for the
next data when the buffer becomes full. This can mean a loss of data may occur. As the transmission