MultiModemII User Guide
38
Command: &D
n
Data Terminal Ready (DTR) Control
Values: n = 0, 1, 2, or 3
Default: 2
Description: This command interprets the high to low transition of the DTR
signal sent by the computer according to the supplied param-
eter. The action taken depends on the current &Q setting.
&D0 &Q0, &Q5, &Q6: DTR is ignored (assumed high). Allows op-
eration with computers that do not provide DTR.
&Q1, &Q4: DTR drop causes the modem to hang up. Autoan-
swer is not affected.
&Q2, &Q3: DTR drop causes the modem to hang up. Autoan-
swer is inhibited.
&D1 &Q0, &Q1, &Q4, &Q5, &Q6: DTR drop is interpreted by the
modem as if the asynchronous escape sequence had been en-
tered. The modem returns to asynchronous command state
without disconnecting.
&Q2, &Q3: DTR drop causes the modem to hang up. Autoan-
swer is inhibited.
&D2 &Q0–&Q6: DTR drop causes the modem to hang up. Autoan-
swer is inhibited.
&D3 &Q0, &Q1, &Q4, &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. Autoan-
swer is inhibited.
&Q5 or &Q6 and +FCLASS=1 or +FCLASS=2: Same as for &Q0.
Command: &E
n
V.42 Error Correction Modes
Values: n = 0, 1, or 2
Default: 1
Description: &E0 V.42 non-error correction mode (V.42 disabled).
&E1 V.42 auto-reliable mode.
&E2 V.42 reliable mode (V.42 enabled).
Command: &E
n
Modem-Initiated Flow Control
Values: n = 3, 4, or 5
Default: 4
Description: &E3 Flow control disabled.
&E4 CTS/RTS hardware flow control.
&E5 XON/XOFF software flow control.
Note: See also the &K command.
Command: &F
n
Load Factory Settings
Values: n = 0 or 1
Default: None
Description: &F0 Load factory configuration 0.
&F1 Load factory configuration 1.
Note: See also the Z command.