Extreme Networks Summit 200-24 Installation And User Manual page 23

SX Mini-GBIC Specifications
Table 6 describes the specifications for the SX mini-GBIC.
Table 6: SX mini-GBIC specifications
Parameter
Transceiver
Optical output power
Center wavelength
Receiver
Optical input power sensitivity
Optical input power maximum
Operating wavelength
General
Total system budget
Total optical system budget for the SX mini-GBIC is 11.5 dB. Extreme Networks recommends that 3 dB
of the total budget be reserved for losses induced by cable splices, connectors, and operating margin.
While 8.5 dB remains available for cable-induced attenuation, the 1000BASE-SX standard specifies
supported distances of 275 meters over 62.5 micron multimode fiber and 550 meters over 50 micron
multimode fiber. There is no minimum attenuation or minimum cable length restriction.
LX Mini-GBIC Specifications
Table 7 describes the specifications for the LX mini-GBIC.
Table 7: LX mini-GBIC specifications
Parameter
Transceiver
Optical output power
Center wavelength
Receiver
Optical input power sensitivity
Optical input power maximum
Operating wavelength
General
Total system budget
Total optical system budget for the LX mini-GBIC is 13.5 dB. Measure cable plant losses with a 1310 nm
light source and verify this to be within budget. When calculating 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, connectors,
and operating margin. Thus, 10.5 dB remains available for cable induced attenuation. There is no
minimum attenuation or minimum cable length restriction.
Summit 200 Series Switch Installation and User Guide
Minimum Typical
–9.5 dBm
830 nm 850 nm
–21 dBm
830 nm
Minimum Typical
–9.5 dBm
1275 nm 1310 nm
–23 dBm
1270 nm
Mini-GBIC Type and Hardware/Software Support
Maximum
–4 dBm
860 nm
–4 dBm
860 nm
11.5 dB
Maximum
–3 dBm
1355 nm
–3 dBm
1355 nm
13.5 dB
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