SENA Parani-BCD110-210 - Manual (Page 62)

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Appendix D: Trouble Shooting
D.1. No Data Transmission
D.1.1. Device Settings
Check whether the Baud rate of Parani-BCDx10 matches that of its host equipment.
Check whether the host equipment of Parani-BCDx10 uses Hardware Flow Control. Parani-BCDx10 is
initially set to Use of Hardware Flow Control. If your host equipment does not use Hardware Flow
Control, please disable the Hardware flow control option by ParaniWIN or AT command.
D.2. Data Loss or Malfunctioning
D.2.1. Hardware Flow Control
When transmitting large amounts of data with No Hardware Flow Control, Parani-BCDx10 may clear
the data buffer unexpectedly. The possibility becomes greater as the RF transmission environment
becomes worse.
D.2.2. Response Message
AT response messages from the Parani-BCDx10 may affect the host system unexpectedly. Do not use
Parani-BCDx10 if your applications cannot allow for this wireless time delay.
D.3. Transmission Delay
D.3.1. RF Processing Delay
It takes 30msec approximately for a Parani-BCDx10 to complete a data transmission to the other
Bluetooth device. This time delay cannot be reduced and may enlarge as the RF transmission
environment becomes worse. Do not use Parani-BCDx10. If your applications cannot allow for this
time delay.
D.3.2. RF Transmission Environment
If there are many Bluetooth devices working in a small area and/or the RF communication distance is
too great and/or there are some obstacles affecting RF performance, the Parani-BCDx10 repeats the
transmission packet by packet due to interferences and/or low RF performance. This may lead to
increased data transmission time delays.