Extreme Networks BlackDiamond 8800 Series Hardware Installation Manual page 340

Extreme Networks Optics
Table 47: LX mini-GBIC software requirements (Continued)
Switch Model
Summit Switches
Summit X450 series
Summit X450a series
Summit X450e series
Summit X250e series
Table 48 lists the specifications for the LX mini-GBIC interface.
Table 48: LX mini-GBIC specifications
Parameter
Transmitter
Average launch power
Center wavelength
Receiver
Receive sensitivity
Average receive power (max)
Operating wavelength
Link
Link power budget
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. There is no minimum system
budget or minimum cable length restriction because the maximum receive power is the same as the
maximum transmit power. There is no minimum attenuation or minimum cable length restriction.
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Required Software
ExtremeXOS 11.2.1 or later
ExtremeXOS 11.5.1 or later
ExtremeXOS 11.5.1 or later
ExtremeXOS 12.0
Minimum Typical
-11 dBm
1270 nm 1310 nm
1270 nm
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
Maximum
-3 dBm
1355 nm
-19 dBm
-3 dBm
1355 nm
8 dB