Nortel Networks Media Dependent Adapter - Manual (Page 12)

10
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.