Comtrol AT Commands for SmartACFL - Manual (Page 38)

Command Reference Manual
3-18 Conexant 100722A
3.2.2.6 &C - RLSD (DCD) Option
The modem controls the RLSD output in accordance with the parameter supplied. The parameter value, if valid, is written to
S21 bit 5.
Syntax
&C<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 RLSD remains ON at all times.
1 RLSD follows the state of the carrier. (Default.)
Result Codes
OK 0 or 1.
ERROR Otherwise.
3.2.2.7 &D - 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.
Syntax
&D<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 - 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. Auto-
answer is not affected.
&Q2, &Q3 DTR drop causes the modem to hang up. Auto-
answer is inhibited.
1 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. Auto-
answer is inhibited.
2 DTR drop is interpreted according to the current &Qn setting as follows:
&Q0 through &Q6 DTR drop causes the modem to hang up. Auto-
answer is inhibited. (Default.)
3 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 were received. The &Y setting
determines which profile is loaded.
&Q2, &Q3 DTR drop causes the modem to hang up. Auto-
answer is inhibited.
If &Q5, &Q6, +FCLASS=1 or +FCLASS=2 is in effect, the action taken is the same as for &Q0.