02
TA
Table
2-
2 The SD1000U
LED Indicators
Indicator
Mode LED
Connect LED
Mode 0
Green
┏━━━━━
Mode 1
Green
(every 1 sec)
┏┓
Mode 2
Green
(every 3 sec)
┏┰┓
Mode 3
Green
(every 3 sec)
┏┰┰┓
Connected
Green
(every 1 sec)
┏┓
2.4. Serial Ports
The applicable settings for serial ports are as follows.
Table 2-3 The SD1000U 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.
2.5. Data Bit
SD1000U 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 Parani-SD, Parani-ESD or Parani-MSP series. But 7
data bit and none parity is not support.
2.6. Hardware Flow Control
SD1000U 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 SD1000U 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 SD1000U malfunction consequently. In order to prevent this
buffer overflow, SD1000U works as follows.
When using hardware flow control, SD1000U 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.