Remote Access
You can connect to your MT1200 from a remote station and change values of its
parameters. This allows you to add or delete stations from the LLIST, change the
MYCALL or any other command setting, read the analog inputs, set control line outputs,
and so on, all remotely.
Extreme caution must be used when you are accessing your TNC from a remote
location. There is no built-in safeguard, and as such it is possible for you to change
parameters such that the remote TNC will no longer communicate with you.
In order to change parameters in a remote TNC, the RTEXT in that remote TNC must
be set to a text string that will be used as the password string. For instance, you might
set your RTEXT to:
RTEXT Code
The remote TNC must also have its MYREMOTE set to a unique callsign (i.e. WØABC-
4, or XYZREM). If these two parameters are not set, remote access to the command set
of this TNC is not possible. When these parameters are set, you can connect to the
MYREMOTE callsign of the remote TNC.
When the connection is made, the remote TNC will send three lines of numbers. The
numbers may look like:
1 1 1 3 4 3
3 1 4 3 1 3
2 1 1 2 1 3
You must then pick ONE of these lines and decode the password string. Let’s say you
choose to decode line 3 (2 1 1 2 1 3). Rewriting your RTEXT string to make this easier
you would have:
Character #: 1
2
3
4
Letter: C
o
d
e
Therefore, to gain remote access, you must send the following string:
oCCoCd
Note that case is significant and spaces are considered valid characters.
If you fail to properly decode the password, the TNC will send three new lines of
numbers. You will be given a maximum of three attempts to properly decode the
password string. If you fail in three attempts, the TNC will disconnect you and disable
connects to the MYREMOTE for 15 minutes. Also, if you connect to the MYREMOTE
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