SunTech Oscar Express Remote Site, Руководство пользователя, Страница: 12 / 33

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Setting up a Remote Site
Set-up Option 2
This option should be used if only one phone line is available at the remote site. In this set-up, the
same line is used for both voice and data communication.
The remote site makes a person-to-person call to the central terminal with the phone connected to
the modem and begins with voice communication. The remote site and central terminal exchange
necessary information to perform the data transfer. When instructed by the central terminal, the
remote site begins the data transfer over the same phone line. Once modem communication is
complete, the modem releases the line for voice communication again. The transfer can be
completed as a person-to-person call between the remote site and the central terminal ensuring
there were no errors.
Note : Background noise can interfere with the data communication. If the phone has a mute
button, it can be used to minimize ambient noise from interfering with the data transfer.
Fig. 2. Communication Setup Option 2