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Modem Communications
The EDAC 400-02 has a 2400-baud V22bis modem, which can be used to communicate with
external devices e.g. a data-logger or PLC plugged into the RS232 connector. A call to the
EDAC 400-02 can be established with a PC using HyperTerminal, a Windows application shipped
with all versions of Windows. When the call is made using ATDT<phone number>,,,,## the
EDAC 400-02 will go into through mode allowing direct RS232 communications between the PC
and the external device connected to the EDAC 400-02.
Programming Using RS232
Using HyperTerminal, a Windows application shipped with all versions of Windows, you can
configure the EDAC 400-02 via its RS232 connector. This method is used if you require alpha-
numeric pager messages to be programmed.
Connect the EDAC 400-02 to a free serial port on a PC using a straight through serial cable. Start
the HyperTerminal application, select the appropriate com port and click O.K. Configure with the
following settings.
Bit per second 1200
Data bits 8
Parity None
Stop bits 1
Flow Control None
For programming through the RS232 interface, use the instructions as described in this manual
but replace some of the symbols as follows:
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