USRobotics V.34 user manual AT Q1 O Enter, SETTING/USING Defaults

COURIER HIGH SPEED MODEMS

Returning Online

On If DIP switch 9 is ON (on detection of the escape code the modem maintains the connection), you can issue commands and then toggle the modem back online with the On command, as in this example:

	AT Q1 O <Enter>
There are two ways to return online.
ATO0	Return online (normal). (Used in the example above.)
ATO1	Return online and retrain. Use to have the modem re-
	synchronize if there were errors in a non-ARQ data
	transfer.

Hanging Up

If DIP switch 9 is ON, the escape code forces the modem back to Command mode but leaves the line open. If you want the modem to hang up, issue the following command once the modem sends the OK result code:

ATH <Enter>

If DIP switch 9 is OFF, the modem automatically hangs up on receipt of the escape code.

SETTING/USING DEFAULTS

The modem's read-only memory (ROM) permanently stores the modem's four factory template settings. Nonvolatile random access memory (NVRAM) allows you to save one of these four templates, or add your own modifications, and write all the settings to NVRAM as your power-on defaults.

&Fn The modem is shipped with four configurations (templates), &F0−&F3, stored in permanent nonprogrammable memory (ROM). Appendix B includes configuration listings for each template. Any one of the templates may be loaded into current memory (AT &Fn) or written to nonvolatile memory to serve as the reset default (AT &Fn &W). Note, however, that &F0 is always loaded into memory if DIP switch 10 is ON.

Data Mode Operations 4-11