
30
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 through
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
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