3Com CoreBuilder 9000 Installation Manual page 13

Using a newer version GBIC transceiver (GBIC91, GBIC92, GBIC93, or
GBIC97) in a system running older code (pre-Release 3.0) can generate
the following message.
WARNING:
The GBIC in Port xx is NOT approved by 3Com & may
violate electromagnetic emission or safety
requirements for your country. Refer to 3Com's web
page (www.3com.com/gigabit_ethernet/gbics) for our
current approved list.
For a list of GBIC devices that are qualified for the Switch 4007, see the
3Com Web site at
gbics.
The event log may show one of the following informational messages:
Unqualified GBIC: I2C read error
Meaning: The transceiver, which connects to the module host
board through a 20-pin connector is not seated properly, and a
clean connection cannot be established.
Corrective action: Completely remove the transceiver and then
reinsert it. If the problem persists, contact 3Com Technical Support.
For contact information in the United States and Canada, call 1-
800-NET-3COM. For the number to call in other locations, visit the
3Com Web site:
enterprise.html
http://www.3com.com/gigabit_ethernet/
http://www.3com.com/util/
.
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