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6
GBIC Transceiver Installation Guide
If the transceiver is not working properly, the system displays an
appropriate error message, as described in the following sections.
“Unqualified GBIC” Error
If the system detects an unqualified GBIC or a problem with the integrity
of the GBIC, it sets the port type to
Unqualified GBIC, displays a short
description (
Uqual.GBIC), and captures the error in the event log.
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.
Using a newer version GBIC transceiver (GBIC91, GBIC92, or GBIC97) in a
system running older code (pre-Release 3.0) can generate the above
message. For a list of GBIC devices that are qualified for the CoreBuilder
3500, 9000, and 9400, see this 3Com Web site:
http://www.3com.com/gigabit_ethernet/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
To correct this problem, 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:
http://www.3com.com/util/enterprise.html
.
■ Unqualified GBIC: Checksum match error
Meaning
The system uses checksum error detection to verify the integrity of the
GBIC data. If the system detects a problem with the data, it displays
an error message that indicates a checksum failure.
Corrective action
Although this condition does not necessarily indicate that the GBIC
transceiver will not function in the system, replace the transceiver to
ensure proper operation.