COM300 Voice Communication Modem

8.2For Problems Encountered When Making Data Calls

1)Verify you have selected the correct calling modem from PC208W's setup screen.

2)Verify the COM port you are using is activated. As a power saving feature, some notebook computers do not automatically activate the COM ports.

3)Verify nothing else is using the same COM port on the computer. Even if a program is minimized in Windows, it may have a lock on the COM port.

4)PC208W, Campbell Scientific's communication software, has a log level I/O log that will display an activity of communication as the link is being established. Assuming the above items are O.K., the software log should display something such as “ATDT#######”. Where the #### is the telephone number listed in the dialing path of the software for the datalogger you are trying to call. As you are connected to each device in the communications link, this will be reflected in the activity screen. This may help to pinpoint which device in the communications link is failing.

To comply with FCC Rules and Regulations, all repairs on the COM300 modem must be performed by Campbell Scientific, Inc. or an authorized agent of Campbell Scientific, Inc. For assistance in installation, troubleshooting, or for repair, contact Campbell Scientific:

Campbell Scientific, Inc., 815 West 1800 North Logan, Utah 84321-1784 Telephone: (435) 753-2342 Fax: (435) 750-9540

Web site: http://www.campbellsci.com/support.htm

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