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6-2
Communication Parameters
If you have connected your computer to the STU 111/SECTEL,
your computer will be able to operate in both secure synchronous
and secure asynchronous modes.
To set your computer to secure synchronous communication
mode, use the following procedure:
CD
Load your computer's telecommunication software.
@
Access the portion of the program that allows you to set the
communication protocols.
@
Set your computer communication protocols to
synchronous.
@
Set the data rate to 2400 bits per second (bps).
To set your computer to secure asynchronous mode, use the
procedure below:
CD
Load your computer's telecommunication software.
@
Access the portion of the program that allows you to set the
communication protocols.
@
Set your computer communication protocols to
asynchronous.
@
Choose the comm port that your computer will use when
transmitting data (i.e., comm port 1, comm port 2, etc.)
@
Set the data rate to either 300, 1200, or 2400 bits per second
(bps).
@
Set the data bits (size of each character) to 8.
0
Set the stop bits (an additional bit sent at the end of each
character transmitted) to 1.
@
Set the parity check (form of error checking) to none.
NOTE
These parameters
are
used to interface your computer to your
STU 111/SECTEL. The computer receiving your transmitted data may require
additional settings. Refer to your computer telecommunication software
manual for further information.
The STU 111/SECTEL data interface can be connected directly to
any RS-449 interface, and indirectly to any RS-232C via an RS-232
to RS-449 adapter.
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