Compaq 281862-002 manual Modem Strings

2-9

Modem Strings

Configure the Modem Command Strings (not required for direct connect):

1.Set the Primary and Secondary Initialization strings. These command strings are used to initialize the modem used by IRC.

The Primary Initialization string must include the appropriate AT command to reset the modem to a known state. Since AT command strings can contain multiple configuration and command sub-strings, this string can also contain additional configuration commands. (For example, AT&F and AT&C1&D2 can usually be combined into one command: AT&F&C1&D2.) Not all command strings can be concatenated. For example, most modems ignore commands following the ATZ command.

The Secondary Initialization string must include additional AT configuration commands necessary to properly configure the modem for use with IRC.

The configuration utility sets the Primary and Secondary Initialization strings to “ATZ” and “AT&C1&D2,” respectively. These strings were chosen since they generally apply to all modems. Your modem may require different strings to operate properly. These initialization strings must place the modem in the following state for proper operation with Integrated Remote Console.

■Computer to modem serial port speed:computer to modem, to fixed (&B1 or \J0)

■DCD serial port signal assertion to “normal” (&C1)

■Modem responds correctly to DTR assertion (&D2)

■Computer to modem serial port set for hardware flow control

■Error correction enabled

Additional configuration options may be necessary if you have the modem in the shared configuration. These settings are necessary to ensure that Integrated Remote Console and the operating system have configured the modem similarly. Additional configuration settings include:

■Modem response format (numeric or verbose)

Compaq Integrated Remote Console User Guide