TAINY GMOD - Dr. Neuhaus Telekommunikation GmbH

2.2 GPRS/GSM connections with TCP/IP protocol
Following possibilities exist for the GPRS/GSM connections with TCP/IP protocol:
Application �������� Control centre or Application �������� Application
(via TAINY SwitchingCenter / TAINY ModemServer)
TSC terminal device:
TAINY GMOD-Sx connected
to application
Dial-up connection
mode CS
TAINY SwitchingCenter (TSC)
/ ModemServer (TMS)
TSC terminal device:
Connections
TAINY ComPortClient (CPC) with
application, e.g. control centre SW
The TAINY GMOD-Sx establishes the connection to a computer
via GPRS. This is a PC with a link to GPRS/Internet on which the
TAINY SwitchingCenter (TSC) or the TAINY ModemServer (TMS)
is installed. These software-based switching gateways act like a
telephone exchange: They facilitate “leased line” or “dial-up
connections” between any TSC terminal devices, e.g. other
TAINY GMOD-Sx or a PC installed with control centre software and
TAINY ComPortClient (CPC). The TSC terminal devices can be
accessible via GPRS, Internet or Intranet.
Requires that the TAINY GMOD-Sx is controlled like a conventional
modem by AT commands issued by the application connected to it.
The number indicated with the AT command ATD is transmitted to
the TAINY SwitchingCenter / ModemServer. The TSC / TMS will
then put the call through to the terminal device to which the number
is allocated. TAINY GMOD-Sx is then working in Dial-up
connection mode – CS (CS = Circuit Switched).
Leased line mode LLIn operating environments where the transmission of a number is
not possible or not provided for, the TAINY GMOD-Sx must be
permanently allocated to another TSC terminal device by the
TAINY SwitchingCenter / ModemServer. In this case
TAINY GMOD-Sx is working in Leased line mode (LL).
In this connection mode the TAINY GMOD-Sx can activate or
deactivate the connection as soon as it receives the hardware
signal DTR ON or OFF from the connected application.
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