Netgear FS516 - 16 Port 10/100 Mbps Fast Ethernet Switch Guia Da Instalação

C-2

Cabling Guidelines

Category 5 distributed cable that meets ANSI/EIA/TIA-568-A building wiring standards can be 
a maximum of 328 feet (100 meters) in length, divided as follows:

•

20 feet (6 meters) between the hub and the patch panel (if used)

•

295 feet (90 meters) from the wiring closet to the wall outlet

•

10 feet (3 meters) from the wall outlet to the desktop device

The patch panel and other connecting hardware must meet the requirements for 100 Mbps 
operation (Category 5). Only 0.5 inch (1.5 cm) of untwist in the wire pair is allowed at any 
termination point.

 lists the electrical requirements of Category 5 cable.

Number of pairs

Four

Impedance

100 

Ω

 

±

 15%

Mutual capacitance at 1 KHz

≤

 5.6 nF per 100 m

Maximum attenuation (dB per 100 m, at 20

°

 C) at 4 MHz: 8.2

at 31 MHz: 11.7

at 100 MHz: 22.0

NEXT loss (dB minimum)

at 16 MHz: 44

at 31 MHz: 39

at 100 MHz: 32