•The 450-1LR MDA is a 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.
•The 450-1LX MDA is a 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
(3 kilometer) or multimode (550 meters) 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 25).
Table 6 describes the 1000BASE-LX MDA components and LEDs.
For installation instructions, see “Installing an MDA” on page 22.
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