Longwave Gigabit Models
The two 1000BASE-LX (longwave gigabit) MDA models are:
•450-1LR MDA -- single MAC MDA with a separate redundant Phy (backup Phy port). Only one Phy port can be active at any time. If the active Phy port fails, the redundant Phy port automatically becomes the active port.
•450-1LX MDA -- single Phy MDA.
Both models conform to the IEEE 802.3z 1000BASE-LX standard and use longwave 1300 nm fiber optic connectors to connect devices over single mode (5 km/3.1 mi) or multimode (550 m/1805 ft) fiber optic cable.
Note: The optical performance of this transceiver cannot be guaranteed when connected to a multimode fiber plant without the use of the special offset SMF/MMF mode conditioning patch cord
(see “1000BASE-LX Multimode Applications” on page 42).
Figure 8 shows the 450-1LR MDA and the 450-1LX MDA.
