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Extreme Networks Consolidated Hardware Guide 1-9

GBIC Type and Hardware/Software Support

Measure cable plant losses with a 1550 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, 18 dB remains available for cable induced attenuation.

A minimum attenuation of 3 dB is required to prevent saturation of the receiver.

Optical input power maximum -3 dBm

Operating wavelength 1285 nm 1343 nm

Table 1-7: 1000BASE-ZX Specifications

Parameter Minimum Typical Maximum

Transceiver

Optical output power -4 dBm -3 dBm -1 dBm

Center wavelength 1540 nm 1550 nm 1570 nm

Receiver

Optical input power sensitivity -23.5 dBm

Optical input power maximum -1 dBm

Operating wavelength 1540 nm 1550 nm 1570 nm

Table 1-8: 1000BASE-ZX Rev 03 Specifications

Parameter Minimum Typical Maximum

Transceiver

Optical output power -2 dBm 0 dBm 2 dBm

Center wavelength 1540 nm 1550 nm 1570 nm

Receiver

Optical input power sensitivity -23 dBm

Optical input power maximum -1 dBm

Operating wavelength 1540 nm 1550 nm 1570 nm

Table 1-6: 1000BASE-LX Specifications (continued)

Parameter Minimum Typical Maximum

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 305 306

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