1000BASE-LX Connectors
1000BASE-LX Connectors
The 1000BASE-LX (gigabit) MDAs use a longwave 1300 nm, fiber optic transceiver to connect devices over single-mode (5 km/3.1 mi) or multimode (550 m/1,805 ft) fiber optic cables.
Note: The transceiver must be mode conditioned externally via a special offset SMF/MMF patch cord for 1000BASE-LX multimode applications. The offset SMF/MMF patch cord allows the same transceiver to be used for both multimode and single-mode fiber. See your Nortel Networks sales representative for more information about the SMF/MMF patch cord.
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.
The 1000BASE-LX MDA transceiver is designed to mechanically accommodate the single-mode ferrules used on one end of the special offset SMF/MMF patch cord. Multimode ferrules can bind and cause damage to the transceiver.
Caution: Do not connect multimode cables directly into the 1000BASE-LX MDA transceiver. Connect a special offset SMF/MMF patch cord into the transceiver, then connect the multimode cable into the SMF/MMF patch cord.
For more information about gigabit transmission over fiber optic cable and mode conditioning, refer to:
Reference Note: Gigabit Ethernet Physical Layer Considerations (Part number 201540-B).
The publication is available on the World Wide Web at support.baynetworks.com/ library/tpubs/. At the Web site, click on Accelar under the Routing Switches heading.
