AT Command Set and
Table
(4 of 9)
392xPlus AT Commands
AT |
| Description | DCP LCD |
| Command | ||
Command |
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| Sequence | |
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&Cn | LSD Control. |
| Configure\Edit\ |
| &C0 | Forced On. LSD ON at all times. | DTE Interface |
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| &C1 | Standard RS232. LSD is ON when the remote modem's carrier |
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| signal is detected. LSD is OFF when carrier signal is not detected. |
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| &C2 | Wink When Disconnect. LSD normally forced ON, turns OFF for |
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| approximately one second upon disconnecting. |
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| &C3 | Follows DTR. State of LSD follows state of DTR. |
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| &C4 | Simulated Control Carrier. State of LSD follows state of remote |
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| modem's RTS. |
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| &C5 | =DTR/Disconnect Off. State of LSD follows state of DTR except |
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| upon a disconnect where DTR remains ON and LSD turns OFF. |
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| DTR must then toggle OFF and ON to turn LSD ON. Use this |
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| setting for AT&T DATAKITr applications. Note that to use this |
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| option, the DTR Action configuration option must be set to |
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| Stndrd_RS232 (&D1, &D2, or &D3). |
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&Dn | DTR Action. |
| Configure\Edit\ |
| &D0 | Ignore. Modem ignores the true status of DTR and treats it as | DTE Interface |
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| always ON. |
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| &D1, &D2, &D3 |
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| Standard RS232. DTR Signal is controlled by the DTE. |
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| &D4 | Controls |
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| until DTR turns OFF. |
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| &D5 | Controls Transmitter Mute. Mutes the transmitter whenever DTR |
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| drops on the DTE interface. This can be used on the answer side |
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| modem to force the originate modem to initiate a dial backup. |
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| NOTE: Only the Standard RS232 setting is allowed in Austria. |
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&Fn | Select Factory Default Configuration Options. Loads factory configuration options | Configure/Factory | |
| into Active (Operating) area. |
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| &F0 | Async Dial |
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| &F1 | Sync Dial |
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| &F2 | Sync Leased: Answer |
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| &F3 | UNIX Dial |
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| &F4 | Sync Leased: Originate |
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| &F5 | Async Leased: Answer |
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| &F6 | Async Leased: Originate |
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| &F7 | TMp: Control |
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| &F8 | TMp: Trib |
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| Only the &F0 and &F3 commands will leave you in AT Command mode. The |
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| other commands will take you out of AT command control and place the modem |
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| into Dumb mode. The only way to return to AT command control is via the |
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| diagnostic control panel (DCP). For additional information, refer to Appendix F, |
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| Default Configuration Options. |
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November 1996 |
