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6
Allied Data Technologies
On the back of the modem you will find the on/off switch and the connections for the
telephone line, the computer and the mains voltage adapter cable. There are also
connections for a microphone and a loudspeaker.
1.2
Connecting the
Tornado SFM 56.0
Position
TAKE NOTE: The electronics in the modem generate heat. Make sure that there is
sufficient space around the case for the modem to dissipate this heat.
OH
When the LED indicator OH is illuminated, the modem is connected to
the telephone line. This indicator is illuminated during dialling and during
a connection.
RxD and TxD The LED indicators TxD and RxD for transmission indicate that data is
being sent or received via the serial port. When these indicators are
illuminated, data exchange is taking place.
TR
The LED indicator TR is illuminated when the DTR signal via the serial
port is active.
PR
The LED indicator PR is illuminated when the modem is on.
Figure 2.
Back of
Tornado SFM 56.0
E
Figure 3.
Back of
Tornado SFM 56.0
USB