Nortel-networks 312865-A Uživatelský manuál stáhnout pdf (Strana 14)

Connectors Duplex SC single-mode fiber optic

connector

Cabling Single-mode fiber optic cable

Distance Up to 50 km using single-mode fiber

cable, depending on the quality of the fiber

Optical budget 17 dB

Laser Transmitter Characteristics

Wavelength 1550 ± 10 nm

Maximum spectral width 0.2 nm

Maximum launch power 0 dBm or 1.0 mW

Minimum launch power into

fiber

-5 dBm or 0.3 mW

Distance 50 km

Receiver Characteristics

Wavelength 1200 to 1550 nm

Minimum receiver sensitivity -22 dBm

Maximum input power -3 dBm

Note: Nortel Networks recommends that you use an

in-line attenuator for shorter link distances to avoid

overloading the receiver.

Table 5 1000BASE-XD GBIC specifications (continued)

Type Specifications

1 2 ... 9 10 11 12 13 14 15 16 17 18

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Nortel-networks 312865-A Uživatelský manuál Strana 14