Controller modems configuration list

Open: Click on the "Select..." button in the Configure controller modem dialogue box.

This window contains a list of initialisation commands associated with the modems. The values are taken from the "modem.ini" file. The user can edit this file manually in order to update the names and corresponding commands.

Whatever the type of modem connected, the following 3 simple parameters and 2 advanced connection parameters must be selected:

Simple modem parameterisation (PC side)

The following parameters are essential: 7 data bits, even parity, 1 stop bit.

Advanced modem connection parameterisation (PC side)

Clicking the "Advanced" button in the modem configuration window which can be accessed in Windows opens an "Advanced connection parameters" window in which the error and flow control must be disabled.

In the event of any problems checked the following:

  1. The correct initialisation string has been sent from the modem to the controller.
  2. The modem and controller have been connected using a cable in accordance with the description given in the application notes supplied with CLS M2.
  3. The modem was powered up before or at the same time as the controller.
  4. The connection to the telephone network is functioning correctly (PC side and controller side)
  5. The telephone network is compatible with the modems (analog modem)
  6. Both modems are communicating when the connection is established (audible modulation, Rx/Tx LEDs, etc…)
  7. The modem on the controller side is accepting the connection ("connected" message on the PC side and specific LED on the controller side)

Example: Modem configuration windows under Windows

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