3Com 3CB9LF20R Installation Guide - Page 5

70-km Gigabit Ethernet GBIC Transceiver Installation Guide 5 3 Gently slide the transceiver into the GBIC port until it clicks into place. CAUTION: GBIC transceivers are keyed and can be properly inserted only one way. If the transceiver does not click when you insert it, turn it over and reinsert it. 4 You are now ready to cable the system to the Gigabit Ethernet network. Removing the Transceiver To replace an existing GBIC transceiver, compress the side tabs and gently pull the old transceiver out of the port. Troubleshooting After you insert the GBIC transceiver into the port, the system software Transceivers verifies the transceiver operation, as discussed in this section. 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 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 at the display (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