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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 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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Bay Networks 302403-B Wartungshandbuch Seite 32