COMSPHERE 3900 Series Modems
5-24
September 1998
3910-A2-GN32-40
Table 5-2
(5 of 5)
DTE Dialer Configuration Options
AT Cmnd Mode: Normal
Nxt Normal No_ERROR NoStrapOrERR
This configuration option only appears if DTE Dialer Type is configured for AT.
AT Command Mode. Determines how the modem responds to valid and invalid AT commands.
H
Normal
Allows normal operation of the AT command set. The modem acts upon all valid AT commands and
issues the ERROR result code for invalid commands. If a string with multiple commands is entered,
then an invalid command within that string will prevent the execution of subsequent valid
commands.
H
No ERROR
Operates similar to Normal mode, however, the modem does not issue an ERROR result code for
invalid commands. When an invalid command is encountered, the modem ignores it and issues the
OK result code. If a string with multiple commands is entered, then an invalid command within that
string will not prevent the execution of subsequent valid commands.
H
No Strap or ERROR
Ignores all AT commands (including valid commands) that cause a configuration option to change.
Only non-configuring commands (for example ATD, ATA, and ATI) are executed; the ERROR result
code is never returned.
NOTE: Since this configuration option affects AT commands, it cannot be changed by the AT&F command.
However, it can be changed by selecting a factory preset configuration via the DCP.
The AT command is S-Register S84=n, where n is 0 or 231 for Normal, 1 or 232 for No ERROR, and 2 or
233 for No Strap or ERROR.
V25bis Coding: ASCII
Nxt ASCII EBCDIC
This configuration option only appears if DTE Dialer is configured for V.25bis HDLC or V.25bis
Bsync.
V.25bis Coding. Identifies to the modem whether the DTE is using ASCII code or EBCDIC code for V.25bis
commands. The modem responds to the DTE using the same coding.
The AT command is S-Register S62=n, where n is 0 for ASCII or 1 for EBCDIC.
V25bis IdleFill: Mark
Nxt Mark Flag
This configuration option only appears if DTE Dialer is configured for V.25bis HDLC or V.25bis
Bsync.
V.25bis Idle Fill. Determines whether a mark or flag is used as an idle fill character for the DTE. The modem
responds to the DTE using the same idle fill.
The AT command is S-Register S63=n, where n is 0 for Mark or 1 for Flag.
V25b NewLineChr: CR+LF
End CR+LF CR LF
This configuration option only appears if DTE Dialer is configured for V.25 bis Async.
V.25bis New Line Character. Sets the modem for the command line terminator used by the DTE in V.25bis
Async mode. The modem responds to the DTE using the same line terminator.
The AT command is S-Register S64=n, where n is 0 for carriage return and line feed, 1 for carriage return,
or 2 for line feed.
