Long Range Mini-Gbic System Budgets - Extreme Networks Summit 200-24 Hardware Installation Manual

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Table 5: LX mini-GBIC specifications (continued)
Parameter
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 dBm 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 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.
Table 6: ZX mini-GBIC specifications
Parameter
Transceiver
Optical output power
Center wavelength
Receiver
Optical input power sensitivity
Optical input power maximum
Operating wavelength
The ZX mini-GBIC is compatible with and interoperates with long range GBICs. For more information
about the budget requirements and minimum attenutation requirements of long range GBICs, see "Long
Range Mini-GBIC System Budgets".

Long Range Mini-GBIC System Budgets

Measure cable plant loses with a 1550 nm light source and verify this to be within budge. When
calculating the maximum distance attainable suing 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
32
Minimum Typical
-23 dBm
1270 nm
Minimum Typical
-2 dBm 0 dBm
1540 nm 1550 nm
-23 dBm
1540 nm 1550 nm
Maximum
-3 dBm
1355 nm
13.5 dB
Maximum
3 dBm
1570 nm
-3 dBm
1570 nm
Consolidated "e" Series Hardware Installation Guide