Westermo TD-22 AC, Installation Manual

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16 6177-2203
&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.
&D0 DTR drop is interpreted according to the setting as follows: (Default.)
&Q0, &Q5 or &Q6
DTR is ignored (assumed ON). Allows operation with DTEs which do
not provide DTR.
&Q1 or &Q4
DTR drop causes the modem to hang up.
&Q2 or &Q3
DTR drop causes the modem to hang up. Auto-answer goes off.
&D1 DTR drop is interpreted according to the setting as follows:
&Q0, &Q1, &Q4, &Q5 or &Q6
The modem returns to command state without disconnecting.
&Q2 or &Q3
DTR drop causes the modem to hang up. Auto-answer goes off.
&D2 DTR drop causes the modem to hang up. Auto-answer is inhibited.
&D3 DTR drop is interpreted according to the setting as follows:
&Q0, &Q1, &Q4, &Q5 or &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 or &Q3
DTR drop causes the modem to hang up. Auto-answer goes off.
Please also refer to AT&M, AT&Q, S21.
%D0 Disconnect the connection at a signal level below -43dBm. (Default.)
%D1 Disconnect the connection at a signal level below the value stored in S24.
Please also refer to S24
En – Command Echo
The modem enables or disables the echo of characters to the DTE according to the parameter
supplied. The parameter value, if valid, is written to S14 bit 1.
E0 Disables command echo.
E1 Enables command echo. (Default.)
Please also refer to ATQ