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Selecting configurations using at commands – Paradyne 3821PLUS User Manual

Page 22

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COMSPHERE 3821Plus Modem

2-6

February 1998

3821-A2-GB20-30

5. Press the

key until the appropriate factory

preset appears on the LCD, and press the
corresponding function key to select your choice.

6. Choose Function appears and displays the Edit and

Save functions.

7. Press the F3 key (Save) to save the new factory

preset configuration to one of three configuration
areas, Active (Saved), Customer 1, or
Customer 2.

(These three configuration areas are nonvolatile
memory locations. Active (Saved) contains the
most recently saved changes to any configuration
options. In the event of power loss, the modem
retrieves these configuration options. Customer 1
and Customer 2 are user-defined configuration
areas.)

The LCD now displays Sav EditArea to.

8. 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.

9. The modem is now configured with the selected

factory template. Press the

key to return to the

Top-Level menu.

Refer to

Configure Branch

in Chapter 3 for more

information regarding default factory configuration
options.

Selecting Configurations Using
AT Commands

495-14829

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 (RS-232D) cable is attached to
the DTE connector at the rear of the COMSPHERE
3000 Series Carrier, and to the correct serial
communications port on the asynchronous DTE.

On initial power-up, the modem is in Command
mode. 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 C,

Troubleshooting

.

NOTE

If you have already changed the
factory preset configuration you
may have lost AT command
control. To regain AT command
control, select, via the SDCP, the
Async Dial factory preset
configuration as described earlier
in

Selecting Configurations Using

the SDCP.