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| Chapter 5 – AT Commands, |
Command: | &Sn | Data Set Ready (DSR) Control | |
Values: |
| n = 0 or 1 | |
Default: |
| 0 |
|
Description: |
| &S0 | DSR is always high (on). |
|
| &S1 | DSR goes high only during a connection. |
Command: | &Tn | Loopback Test (V.54 Test) Commands | |
Values: |
| n = 0, 1, 3, 6 | |
Default: |
| None |
|
Description: |
| The modem can perform selected test and diagnostic functions. A test can be run only when | |
|
| the modem is operating in | |
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| and 6, a connection between the two modems must be established. To terminate a test in | |
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| progress, the escape sequence (+++AT) must be entered. | |
|
| &T0 | Stops any test in progress. |
|
| &T1 | Starts a local analog loopback, V.54 Loop 3, test. If a connection exists when this |
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| command is issued, the modem hangs up. When the test starts, a CONNECT |
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|
| message is displayed. |
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| &T3 | Starts local digital loopback, V.54 Loop 2, test. If no connection exists, ERROR is |
|
|
| returned. |
|
| &T6 | Initiates a remote digital loopback, V.54 Loop 2, test without |
|
|
| exists, ERROR is returned. |
Command: | &V | Display Current Settings | |
Values: |
| n/a |
|
Description: |
| Displays the active modem settings. | |
Command: | &Wn | Store Current Configuration | |
Values: |
| n = 0 or 1 | |
Default: |
| 1 |
|
Description: |
| &W0 Stores current modem settings in | |
|
|
| at |
|
|
| or following the ATZ command instead of the factory defaults. See also the &F |
|
|
| command. |
|
| &W1 Clears user default settings from | |
|
|
| to be loaded at |
Command: | &Zy=x | Store Dialing Command | |
Values: |
| y = | |
|
| x = Dialing command | |
Default: |
| None |
|
Description: |
| Stores dialing command x in memory location y. Dial the stored number using the command | |
|
| ATDS=y. See Also the #CBS command, a callback security command. | |
Command: | \An | Select Maximum MNP Block Size | |
Values: |
| n = 0, 1, 2, or 3 | |
Default: |
| 3 |
|
Description: |
| \A0 | |
|
| \A1 | |
|
| \A2 | |
|
| \A3 | |
Command: | \Bn | Transmit Break | |
Values: |
| n = | |
Default: |
| 3 |
|
Description: |
| In | |
|
| modem. Works in conjunction with the \K command. |
SocketModem Global MT5634SMI Developer’s Guide | 29 |