flow control, so only wire the RTS and CTS pins if your computer program is
also using hardware flow control.
+
Pacterm uses hardware flow control, but some communication software does
not.
Convers Mode vs. Transparent Mode
In the Convers Mode there are many special characters. To list a few:
Command Default Description
SENDPAC <Ctrl+M> Causes a packet to be formed
DELETE <Ctrl+H> Backspace character
REDISPLAY <Ctrl+R> Redisplays the keyboard buffer
CANLINE <Ctrl+X> Cancels a line
STOP <Ctrl+S> Stops output from TNC to computer
PASS <Ctrl+V> Pass a special character
These characters are all very useful when having a packet conversation with
someone. If you want to send a packet you hit the return. If you make a mistake
you can erase characters, using the delete or backspace key, or kill the whole line
with <Ctrl+X>. And if you really want to transmit one of these characters, you
can always precede it with a PASS character.
Transparent Mode was designed for the sending of files, whether they be ASCII
data files or program files. Special characters have no meaning to the TNC in
transparent mode, they are just characters to be put in a packet and sent to the
radio.
In Transparent Mode, a SENDPAC character will not cause data to be formed
into packets; instead, packets are formed at a rate that is set by PACTIME.
All monitor commands are treated as OFF in Transparent Mode. All you will see
is what is being sent to you. You would probably want to set USERS to 1 so no
one interferes with the transfer. The setting of ECHO is also ignored. Even if
ECHO is ON Transparent Mode will not echo to the attached terminal. Some
programs allow for local echoing to the screen while uploading.
Packet Modes of Operation Overview of Packet Communication
User’s Guide 156 KAM’98 v 8.3
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