NAL Research Corporation (TN2013-12-V1.1)
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A.8.7 Vn – Verbose Mode
Set the response format of the A3LA-R, which may be either numeric or textual.
0
Numeric responses
1
Textual responses (default)
A.8.8 Wn – Error Correction Message Control
Set the format of the CONNECT messages.
0
Upon connection, the A3LA-R reports the DTE speed (default)
1
Upon connection, the A3LA-R reports the line speed, the error correction protocol
and the DTE speed in that order
2
Upon connection, the A3LA-R reports its data port speed
A.8.9 Zn – Soft Reset
Reset the A3LA-R to a user-stored configuration.
0
Restores user configuration 0
1
Restores user configuration 1
A.8.10 &Cn – DCD Option
Select how the A3LA-R controls the DCD behavior.
0
DCD is forced on at all times
1
DCD indicates the connection status (default)
A.8.11 &Dn – DTR Option
Set the A3LA-R reaction to DTR signal.
0
DTR is ignored in all modes. A DTR signal input is not needed when set to &D0.
For all other &Dn settings, the following applies.
DTR must be ON during on-hook command mode. If DTR transitions from ON to OFF during on-
hook command mode, operation will be locked after approximately 10 seconds. On-hook
command mode operation will resume when DTR is restored ON.
DTR must be ON at call connection
DTR must be ON during both in-call command mode and in-call data mode. Reaction to DTR ON
to OFF transitions during in-call command mode and in-call data mode is determined by the
&Dn setting as shown below.
Note that the +CVHU command can be set to override these
specified reactions.
1
If DTR transitions from ON to OFF during in-call command mode, and DTR is
restored ON within approximately 10 seconds, the call will remain up. If DTR is not
restored ON within approximately 10 seconds, the call will drop to on-hook
command mode.
If DTR transitions from ON to OFF during in-call data mode, the mode will change
to in-call command mode. If DTR is restored ON within approximately 10 seconds,
the call will remain up. If DTR is not restored ON within approximately 10 seconds,
the call will drop to on-hook command mode.