Extreme Networks SFP and SFP+ Modules
Dual-speed 100FX/1000LX SFP Module
The dual-speed 100FX/1000LX SFP module operates at either 100 Mbps or 1000 Mbps over SMF links up to 10 km long.
Operating at 100 Mbps, the dual-speed SFP conforms to the 100BASE-LX standard. Operating at 1000 Mbps, the dual-speed SFP conforms to the 1000BASE-LX standard.
The dual-speed 100FX/1000FX SFP modules are supported in the following Extreme Networks switches:
BlackDiamond 8800 series switches
BlackDiamond 12800 series switches
BlackDiamond 20800 series switches
Summit X440 series switches
Summit X450-24x switch: ports 5 through 24 (not supported on combination ports)
Summit X450a-24x, X450a-24xDC switches: ports 1 through 20 (not supported on combination ports)
•E4G series routers (Ethernet ports)
Optical Budget Calculation
The 100FX/1000LX SFP module complies with the 100FX-SMF standard.
To use the 100FX/1000LX SFP module in 100FX-MMF operation, a minimum attenuation of 6 dB is required. After the SFP module is installed, connect a 6-dB attenuator to the transmitter side (Tx) of the SFP module. Next, connect the attenuator to the single-mode end of a mode conditioning patch cord. The mode conditioning patch cord transitions the SFP module from SMF to MMF operation.
When in SMF operation, 100FX-SMF or 1000LX, measure cable plant losses with a 1310 nm light source and verify this to be within budget. When you calculate the maximum distance attainable using optical cable with a specified loss per kilometer (for example 0.25 dB/km), Extreme Networks recommends that 3 dB of the total budget be reserved for losses induced by cable splices or connectors and operating margin.
Note
The 100FX/1000LX SFP module detects link status based only on the presence of light in the receive cable. Therefore, if a single strand is broken, the link partner on the other port will not detect link down.
For technical specifications for the 100FX/1000LX SFP, see Technical Specifications.
LX100 SFP Module
The LX100 SFP module provides a 1000BASE-X optical link up to 100km long using LC connectors and SMF cable.
The LX-100 SFP modules are supported on the following Extreme Networks devices:
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