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Figure 12 Removing a GBIC with spring tabs
• If the GBIC has an extractor handle (Figure 9 on page 23),
grasp the handle and pull firmly to remove the GBIC from
the MDA’s Host port.
1000BASE-LX Multimode Applications
For 1000BASE-LX multimode applications, the longwave
gigabit transceivers must be mode conditioned externally via a
special offset SMF/MMF patch cord. With the offset SMF/MMF
patch cord, you can use the same transceiver for both multimode
and single-mode fiber. For more information about the SMF/
MMF patch cord, see your Nortel Networks sales representative.
The 1000BASE-LX transceiver is designed to mechanically
accommodate the single-mode ferrules used on one end of the
special offset SMF/MMF patch cord. Multimode ferrules must
not be used because they can bind and cause damage to the
transceiver. Do not connect multimode cables directly into the
1000BASE-LX MDA transceiver. Instead, connect a special
offset SMF/MMF patch cord into the transceiver, and then
connect the multimode cable into the SMF/MMF patch cord.