Sierra Wireless DART 200 CDPD Modem - Manual (Page 84)

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols
Sierra Wireless, Inc. 5-30
• Terminal Emulation Negotiation - S-Register 78 determines the
terminal emulation type to offer first when negotiating with the telnet
host system. The current list is:
• 0 = DEC-VT100 (default)
• 1 = DEC-VT52
• 2 = UNKNOWN
Default is for most specific first, such as 0. When the telnet session is
established and negotiation is complete, the actual terminal type chosen
is determined by using the telnet escape mode status command, or by an
appropriate command for the remote server. If UNKNOWN was
selected, the backspace and delete keys may not work correctly. If this is
the case you have two options:
1. Use the erase character definition on the remote server. UNIX
usually uses the tset, stty, or printen commands to access terminal
parameters. Refer to a UNIX manual or ask the serving system
administrator.
OR
2. Use the telnet virtual terminal erase character command to send the
erase character.
Telnet escape commands
When in a telnet session, entering a Ctrl ^ means that telnet interprets the
next keystroke as a command. The commands include:
e Send Telnet Virtual Terminal erase character command.
i Send Telnet IP command (Interrupt Process).
l Tell server you are going to local echo mode
r Request server to perform remote echo usually responds [YES] if
there
a Send a telnet AYT Are You There (AYT) command; Server
usually responds YES if there
b Request Binary Mode. This is not normal, use with caution
o Request to turn Binary Mode off
s Print current status of telnet session. (Local parameters)
^ Send the local telnet escape character.
Any other key that follows the ^^ sequence displays a list of allowed
commands. S-Register 77 contains the telnet escape character (default is
^^ or decimal 30.
Some of the DART 200 profile parameters (\Mn , \Tn, and so on) can be
changed after logging in to the telnet host by using the DART 200’s
escape to command mode sequence (+++). However, do not change
S-Register values and modem profile parameters that were negotiated
with the remote host when in the connected state, since changing their
values at this point could impact client/remote host communication.
After completing your changes, return to the telnet session with the ATO
command.