Specifications

COM220 Telephone Modem
11) Can you attach a normal analog telephone to the line and make a call out?
If not, contact your local telephone company. If you can make a call out
but the connection is poor or faint, contact your local telephone company.
12) Verify the COM220 is receiving 12 VDC. If the COM220 is receiving 12
VDC from a separate power supply instead of the datalogger, is the ground
of the separate power supply connected to the datalogger’s ground?
13) Verify the datalogger is turned on.
To comply with FCC rules and regulations, all repairs on the COM220 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: [phone]
Fax: [phone]
Web site: www.campbellsci.com
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