COMSPHERE 3800 Series Modems ± Model 3830

Table 4-2

(12 of 23)

Model 3830 AT Commands

&Mn or &Qn Async/Sync Mode and DTE Dialer Type

Sets the modem for either asynchronous or synchronous operation and selects the type of dialing method the modem uses.

&M0, &Q0 Modem operates in Asynchronous data mode and uses AT Command protocol.

&M1, &M3, &Q1, &Q3 Modem operates in Synchronous data mode and uses AT Command protocol.

&M2, &Q2 Modem operates in Synchronous data mode and dials the telephone number stored in directory location 1 when the DTR signal turns Off and then ON.

&Q4 Modem operates in Asynchronous data mode with AT commands and Hayes AutoSync enabled. (NOTE: There is no &M4 command.)

&M231, &Q231 Modem operates in Asynchronous data mode and disables any type of AT command dialing protocol.

&M232, &Q232 Modem operates in Asynchronous data mode and uses V.25bis asynchronous dialing.

&M233, &Q233 Modem operates in Synchronous data mode and uses V.25bis bisynchronous dialing.

&M234, &Q234 Modem operates in Synchronous data mode and uses V.25bis HDLC dialing.

&M235, &Q235 Modem operates in Asynchronous data mode and enables a subset of the AT&T command set. This is required for AT&T DATAKIT dial-out applications.

The &M2, &M231 through &M235, &Q2, and Q231 through Q235 commands disable the use of AT commands and force the modem into Dumb mode. The only way to regain control of the modem is to recover AT Commands as described in the Recovering AT Commands section in Chapter 2.

4-18

August 1998

3830-A2-GB91-30

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Paradyne 3830 manual Comsphere 3800 Series Modems ± Model