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GBIC Transceiver Installation Guide 5
CAUTION: GBICs are keyed and can be inserted only one way. If the GBIC
does not click when you insert it, remove the GBIC, turn it over, and
reinsert it.
Removing the Transceiver
To replace an existing GBIC transceiver, compress the side tabs and gently
pull the transceiver out of the port.
Troubleshooting
Transceivers
After you insert the GBIC transceiver into the port, the system software
verifies the transceiver operation. If you should experience problems refer
to the steps and conditions below.
To ensure optimal performance, compatibility, and regulatory compliance,
use only GBIC transceivers that 3Com supports. For a list of currently
supported GBICs, see this 3Com Web site:
http://www.3com.com/gigabit_ethernet/gbics
No LED Error
Corrective action
If the GBIC LED does not light after you insert it into the chassis, remove
the GBIC and re-insert it.
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, GBIC93, 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
Switch 4007, 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