User's Manual

BlueRS+ manual 1.07work/09.2003
3. Using the BlueRS+C2
22 © Stollmann Entwicklungs- und Vertriebs-GmbH
3.3 Cable replacement
A pair of BlueRS+C2 devices can be used to operate as a RS232 cable
replacement. Typically one BlueRS+C2 has to operate as a DCE interface
("BlueRS+C2DCE", DSU9 female) and the other one as a DTE interface
("BlueRS+C2DTE", DSUB9 male). These devices have to be ordered with the
correct interfaces.
When ordering a pair of BlueRS+C2 both devices will have the correct setting to
operate without changing any parameter. The default behavior is as follows:
- The Bluetooth link is established directly and automatically after powering
on from the BlueRS+C2 operating in DCE mode
- the restricted mode is disabled
- data transfer is transparent set to baudrate 115200 bit/s
- all status lines are transparently transferred to the other device (local
flowcontrol is disabled).
- LED2 shows the Bluetooth connection status (ON = link established)
In detail the following settings differ from the factory default setting:
BlueRS+C2DCE:
cmds 8 Automatic connection establishment independent of any status
line.
cdtr 0 DTR line is not controlling the Bluetooth link
cdsr 4 DSR Output line of BlueRS+C2DCE follows DSR input line of
BlueRS+C2DTE
ccts 3 CTS Output line of BlueRS+C2DCE follows CTS input line of
BlueRS+C2DTE
cdcd 4 DCD Output line of BlueRS+C2DCE follows DCD input line of
BlueRS+C2DTE
cri 1 RI Output line of BlueRS+C2DCE follows RI input line of
BlueRS+C2DTE
flc 0 no hardware flowcontrol
BlueRS+C2DTE:
cmds 12 Only acceptance of incoming Bluetooth link requests.
cdtr 0 DSR line is not controlling the Bluetooth link (DTR is mapped
internally to DSR)
cdsr 4 DTR Output line of BlueRS+C2DTE follows DTR input line of
BlueRS+C2DCE (DTR is mapped internally to DSR)
ccts 3 RTS Output line of BlueRS+C2DTE follows RTS input line of
BlueRS+C2DCE (RTS is mapped internally to CTS)
flc 0 no hardware flowcontrol