Logic IO ApS.
Ph: (+45) 7625 0210
Holmboes Allé 14
Fax: (+45) 7625 0211
8700 Horsens
Email: [email protected]
Denmark
www.logicio.com / www.rtcu.dk
Technical Manual 1.07, Bluetooth Smart-antenna
Page 6 of 11
Power supply
The BSA is supplied directly from the RTCU X32 unit via the DC-OUT pin in the service
port connector / screw terminals. When the BSA is connected no other devices may be
connected to the DC-OUT due its output current handling capabilities.
The BSA must be supplied with 3.3VDC.
Communication
Communication between the RTCU X32 unit and the BSA is via RS232. When the BSA
receives data from a connected Bluetooth device, the data will be passed trough to the
RTCU X32 unit, which will buffer the data until the application retrieves it. However, as the
buffers in the RTCU X32 are limited, the application must retrieve the data as fast as
possible; otherwise data will be lost – especially when large amount of data flows.
If a connection to a BSA device is poor, for example due long distance between the BSA
and the device, the data transmission speed to the device will be lowered, as the data is
re-transmitted. When this occurs the BSA will start to buffer the data until its internal
buffers are filled. As this may happen during a call to a Bluetooth function from the
application, the function will wait until the BSA buffers are ready again.
Please refer to the RTCU IDE online help for further information.
Serial connection
Active LED (blue)
Status LED (BiColor)
Communication and
power cables.
RT-O-BT1-AX9
