Multitech BL-Series Bedienungsanleitung PDF herunterladen (Seite 9)

AT Commands for the MT5656ZDX, MT5600ZDX, MT5600BA/BL-Series Modems

Multi-Tech Systems, Inc. Commands Reference Guide (PN S000273D)

Command: &Cn Data Carrier Detect (DCD) Control

Values: n = 0 or 1 (all models) 0, 1, 2, 3, 4, 5, 6, 7 (MT5600BA only)

Default: 1, 3, 4

Description: &C0 Turns off reset on loss of carrier (all models).

&C1 A second way to turn off reset on loss of carrier (all models).

&C2 DCD goes high 500ms after CONNECT message is generated.

&C3 DCD goes high when the CONNECT message is generated.

&C4 Disables &C5 and &C6 command.

&C5 UNIX only: Holds DCD low until proper callback security password is entered or

until a disconnect occurs. This prevents UNIX login prompt from being displayed

before the callback security ENTER PASSWORD prompt appears (MT5600BA only).

&C6 Linux only: Wait to display the connect message until the proper callback security

password is entered.

&C7 Reset on loss of DCD.

MT5600BA LCD:

Command: &Dn 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 parameter. The action taken depends on the current &Q setting.

&D0 &Q0, &Q5, &Q6: DTR is ignored (assumed high). Allows operation with computers

that 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 &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 &Q0–&Q6: DTR drop causes the modem to hang up. Autoanswer is inhibited.

&D3 &Q0, &Q1, &Q5, &Q6: DTR drop causes 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. Autoanswer is inhibited.

&Q5 or &Q6 and +FCLASS=1 or +FCLASS=2: Same as for &Q0.

Note: If &D1, &D2, or &D3 is set, the modem will not dial without a DTR drop.

MT5600BA LCD:

Command: &En V.42 Error Correction Modes (MT5600BA V.92 only)

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).

MT5600BA LCD:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 59 60

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