Extreme 10808 Installationsanleitung

Extreme Networks Consolidated XOS Hardware Installation Guide

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.

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 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/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.

Mini-GBICs are Class 1 laser devices, and they operate at 3.3 V. Use only Extreme Networks-certified 
mini-GBIC devices.

Transceiver 

Optical output power

-9.5 dBm

-3 dBm

Center wavelength

1275 nm

1310 nm

1355 nm

Receiver 

Optical input power sensitivity

-23 dBm

Optical input power maximum

-3 dBm

Operating wavelength

1270 nm

1355 nm

General 

Total system budget

13.5 dB

Transceiver 

Optical output power

-2 dBm

0 dBm

3 dBm

Center wavelength

1540 nm

1550 nm

1570 nm

Receiver 

Optical input power sensitivity

-23 dBm

Optical input power maximum

-3 dBm

Operating wavelength

1540 nm

1550 nm

1570 nm