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For technical specifications for the LX and Industrial Grade LX SFP, see Technical Specifications.
ZX SFP Module
The ZX SFP module is a long-haul SFP that provides a 1000BASE-X optical connection using LC
connectors and SMF cable up to 80 km long.
ZX SFP modules are supported on the following Extreme Networks devices:
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BlackDiamond 8800 series switches
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BlackDiamond X8 switch
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BlackDiamond 10808 switch
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BlackDiamond 12800 series switches
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BlackDiamond 20800 series switches
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Summit X150 series switches
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Summit X250e series switches
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Summit X440 series switches
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Summit X450 series switches
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Summit X450a series switches
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Summit X450e series switches
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Summit X460 series switches
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Summit X480 series switches
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Summit X650-24x switch: ports 1 through 22, VIM1 module ports
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Summit X670 series switches
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E4G series routers (Ethernet ports)
Optical Budget Calculation
Measure cable plant losses with a 1550 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 you reserve 3 dB of the
total budget for losses induced by cable splices or connectors and operating margin. A minimum
system budget or attenuation is required to prevent saturation of the receiver.
For technical specifications for the ZX SFP, see Technical Specifications.
1000BASE-BX Bi-Directional SFP Modules
The 1000BASE-BX SFP modules include the 1000BASE-BX-U SFP module and the 1000BASE-BX-D
SFP module.
These two SFP modules are used together to permit a bidirectional Gigabit Ethernet connection using a
single strand of SMF cable and LC connectors. The 1000BASE-BX-D SFP operates at wavelengths of
1490 nm TX/1310 nm RX, and the 1000BASE-BX-U SFP operates at wavelengths of 1310 nm TX/1490
nm RX. The 1000BASE-BX-U SFP module is always connected to the 1000BASE-BX-D SFP module. The
Extreme Networks SFP and SFP+ Modules
Pluggable Hardware Installation Guide 15