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Setting Up a Bidirectional Modem

To set up a bidirectional modem, you need information for these variables.

  • port-name The port to which the modem is connected (typically, ttya or ttyb).

  • svctag The name of the port monitor service (for Sun systems, zsmon).

  • port-device-name The name of the device for the port (typically /dev/cua/a or /dev/cua/b).

  • short-port-device-name The name, without the complete path, for the port.

  • modem-label The entry in the /etc/ttydefs file that is used to set the proper baud rate and line discipline.

  • modem-type The type of the modem from the /etc/uucp/Dialers file. For example, the type for a Hayes modem is hayes.

Use the following steps to connect a modem.

  1. Halt the system.

  2. Make sure hardware carrier detect is disabled.

    At the OpenBoot PROM prompt, type setenv ttyb-ignore-cd=false and press Return.

  3. Reboot the system.

  4. Connect the modem and make sure any modem switches are set to allow bidirectional use.

  5. Use the SMC Devices and Hardware/Serial Ports tool to configure a serial port for a modem.

    See the Solaris Management Console Tools book for detailed instructions.

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