Nortel Networks Media Dependent Adapter There are two 1000BASE-LX longwave gigabit MDA models

There are two 1000BASE-LX (longwave gigabit) MDA models:

450-1LR MDA (1-port redundant)

1 2

1000BASE-LX1000BASE-LX

TX RX TX RX

Link

Phy Select

Activity

450-1LR MDA

	4	3
450-1LX MDA	1	2
(single port)

1000BASE-LX

TX RX

Link

Phy

Activity

450-1LX MDA

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BS45045A

Figure 5. 1000BASE-LX MDA Front Panels

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