Hardware manual

5901 High Speed Dialup Modem Hardware Manual
October 19, 2007
36
Result Codes:
OK n = 0 or 1.
ERROR Otherwise.
10.3.2 &Dn - DTR Option
This command interprets the ON to OFF transition of the DTR signal from the DTE in accordance
with the parameter supplied. The parameter value, if valid, is written to S21 bits 3 and 4. Also, see
S25.
&D0 DTR drop is interpreted according to the current &Qn setting as follows:
&Q0, &Q5, &Q6 DTR is ignored (assumed ON). Allows operation with
DTEs which do not provide DTR.
&Q1 DTR drop causes the modem to hang up. Autoanswer is not
affected.
&Q2, &Q3 DTR drop causes the modem to hang up. Autoanswer is
inhibited.
&D1 DTR drop is interpreted according to the current &Qn setting as follows:
&Q0, &Q1, &Q5, &Q6 DTR drop is interpreted by the modem as if the
asynchronous escape sequence had been entered.
The modem returns to asynchronous command state
without disconnecting.
&Q2, &Q3 DTR drop causes the modem to hang up. Autoanswer is
inhibited.
&D2 DTR drop is interpreted according to the current &Qn setting as follows:
&Q0 through &Q6 DTR drop causes the modem to hang up. Autoanswer is
inhibited. (Default.)
&D3 DTR drop is interpreted according to the current &Qn setting as follows:
&Q0, &Q1, &Q5, &Q6 DTR drop causes the modem to perform a soft reset as if
the Z command was received. The &Y setting determines
which profile is loaded.
&Q2, &Q3 DTR drop causes the modem to hang up. Autoanswer is
inhibited. If &Q5, &Q6, +FCLASS=1 or +FCLASS=2 is in
effect, the action taken is the same as for &Q0.
10.3.3 &Fn - Restore Factory Configuration (Profile)
The modem loads the factory default configuration (profile). The factory defaults are identified for
each command and in the S-Register descriptions. A configuration (profile) consists of a subset of S-
Parameters.
&F0 Restore factory configuration 0.
&F1 Restore factory configuration 1.
Result Codes: