2400 BPS External Modem  (250-3026)     Settings       Faxback Doc. # 5033


Note: This modem does not have DIP switches for configuration. All options
      can be controlled by software commands. The software command
      information is stored in non-volatile memory.

To use the modem's non-volatile memory, you just issue a single command to
"set" each option. Enter these AT commands via your software's "terminal"
mode. From then on, the modem will always power-up with the right setting,
unless you issue a command to change the setting.

Below are a few configuration commands:

Note: Spaces have been added to the examples to make the commands easier
      to read.

┌───────────────────────────────────┬──────────────────────────────┐
│Function                           │  AT Command to Set           │
│                                   │  Non-Volatile Memory         │
│                                   │    (* = Default)             │
├───────────────────────────────────┼──────────────────────────────┤
│Modem Follows DTR                  │  A T & D 2 & W 0 & Y 0       │
│Modem Ignores DTR                  │  A T & D 0 & W 0 & Y 0    *  │
├───────────────────────────────────┼──────────────────────────────┤
│Verbal Result Codes                │  A T & V 1 & W 0 & Y 0    *  │
│Numeric Result Codes               │  A T & V 0 & W 0 & Y 0       │
├───────────────────────────────────┼──────────────────────────────┤
│Result Codes Disabled              │  A T & Q 1 & W 0 & Y 0       │
│Result Codes Enabled               │  A T & Q 0 & W 0 & Y 0    *  │
├───────────────────────────────────┼──────────────────────────────┤
│In Local Command State,            │  A T & E 1 & W 0 & Y 0    *  │
│Echo Character                     │                              │
│In Local Command State,            │  A T & E 0 & W 0 & Y 0       │
│Do Not Echo Characters             │                              │
├───────────────────────────────────┼──────────────────────────────┤
│Auto-answer On                     │  A T S 0 = 1 & W 0 & Y 0     │
│Auto-answer Off                    │  A T S 0 = 0 & W 0 & Y 0  *  │
├───────────────────────────────────┼──────────────────────────────┤
│DCD Follows Carrier                │  A T & C 1 & W 0 & Y 0       │
│Forces DCD Always On               │  A T & C 0 & W 0 & Y 0    *  │
└───────────────────────────────────┴──────────────────────────────┘

If you ever want to switch ALL of the settings back to the factory
default configuration, use the command:   AT&F


(smm 07/28/93)