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1000BASE-LX MDA

There are two versions of the 1000BASE-LX (longwave

gigabit) MDAs:

• The 450-1LR MDA is a single MAC MDA with a

separate redundant Phy (backup Phy port).

• The 450-1LX MDA is a single Phy MDA.

Both versions (Figure 4

) use longwave 1300 nm fiber optic

connectors to connect devices over singlemode (3

kilometer) or multimode (550 meters) fiber optic cable.

Table 4

describes the 1000BASE-LX MDA components

and LEDs.

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Nortel-networks Media Dependent Adapter Bedienungsanleitung Seite 12