TBox-Radio User manual
February 2019 - Version EN 2.1
www.fdstiming.com
5. Radio communication
Every time an impulse is received from a WINP/WIRC, the corresponding input LED flash on the
TBox. The TBox-Radio immediately send back an acknowledge.
WIRC/WINP radio protocol will resend any message several times if no ACK is received form the
TBox-Radio (up to 8 times).
Radio transmissions cannot be 100% guaranteed. An unfavourable environment, lack of line
of sight, interference or an improper installation might lead to the loss of data.
FDS cannot be held responsible for any of the above.
6. Time delay and precision
In case of a good radio communication with no interferences, the time delay from the IR beam
detection to the generation of a time event by the TBox-Radio will vary from 10ms to 150ms
depending of the selected Group. In case of interferences this delay might reach a few seconds.
However, whatever the delay value, the TBox-Radio takes it into account and generate a
corrected time event with a precision of less than 1ms.
7. Mini-USB
The Mini-USB connector has various functions including:
External power supply and battery charging
COM port emulation for RS232 communication and data transfer
- Real time of day in many formats (FDS, TAG Heuer, Alge, Seiko)
- Configure the TBox-Radio options and parameters (with the app “TBox-Setup”)
2GB USB Flash Drive
- All impulse data are stored in a .csv file on the drive
A new file is created every time the TBox-Radio is swiched ON
- User needs to maintain sufficient memory availability to ensure storage of data
- The space required for a competition of 1000 times is approximately 40 Kbytes
- Flash Drive access is only possible when the TBox-Radio is turned OFF
