Digicom 3910, 3911 operation manual Using AT Commands, Type AT

Modem Installation

6.Press the key until the appropriate configuration area appears on the LCD, then press the corresponding function key to select your choice. (Saving configuration options to the Active (Saved) configuration area automatically saves them to the Active (Operating) configuration area.) The LCD displays Command Complete.

7.The modem is now configured with the selected factory template. Press the key to return to the Top-Level menu.

Refer to Chapter 5, DCP Configuration, for more information regarding default factory configuration options.

Using AT Commands

When using AT commands, the following criteria must be met:

•Make sure the asynchronous DTE’s communication software is configured for 10-bit character format (for example, 8 data bits, no parity, and 1 stop bit).

•Make sure the DTE cable is attached to the DTE connector on the rear of the 391x Series modem and to the correct serial communications port on the asynchronous DTE.

•Configure the modem for Async Dial, Async Leased, or UNIX Dial as described earlier in Using the DCP. To verify that the modem is connected and functioning properly, enter the following:

TYPE: AT

PRESS: Return (Enter)

The screen displays OK.

If the modem does not return OK, refer to Appendix B, Troubleshooting.

NOTE

If the factory preset configuration is something other than Async Dial, Async Leased, or UNIX Dial, you do not have AT command control. To regain AT command control, select, via the DCP, the Async Dial factory preset configuration as described in Using the DCP on page 2-6.

3910-A2-GN32-40 September 1998 2-7