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Configuring the Modem at the SRX220 Services Gateway End

 Note

These instructions use Hayes-compatible modem commands to configure the modem. If your modem is not Hayes-compatible, refer to the documentation for your modem and enter the equivalent modem commands.

To configure the modem on the services gateway end:

  1. Connect the modem to a PC or laptop computer.
  2. Power on the modem.
  3. From the PC or laptop computer, start your asynchronous terminal emulation application (such as Microsoft Windows HyperTerminal), and select the COM port to which the modem is connected (for example, COM1).
  4. Configure the port settings as shown in Table 1.

    Table 1: Port Settings for Configuring the Modem on the Services Gateway End

    Port Setting

    Value

    Bits per second

    9600

    Data bits

    8

    Parity

    None

    Stop bits

    1

    Flow control

    None

  5. In the HyperTerminal window, enter AT.

    An OK response verifies that the modem can communicate successfully with the COM port on the PC or laptop.

    For more information on the AT commands, see Administration Guide for Security Devices.

  6. Configure the modem to answer a call on the first ring by entering ATS0=1.
  7. Configure the modem to accept modem control DTR signals by entering AT&D1.
  8. Disable flow control by entering AT&K0.
  9. Save modem settings by entering AT&W.