Connectivity Guidelines

When adding hubs (repeaters) to your network, please follow the con- nectivity rules listed below for Fast Ethernet. However, note that because switches break up the path for connected devices into sepa- rate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices.

Maximum Fast Ethernet Network Diameter

Repeater Type

Twisted Pair

Twisted Pair/Fiber

and Number

100BASE-TX

100BASE-TX and FX

1

Class I

200m

(656 ft)

260.8 m (855.4 ft)

1

Class II

200m

(656 ft.)

308.8 m (1012.6 ft)

2 Class II

205m (672.4 ft)

216.2m (709.1 ft)

Note: Network diameter is defined as the wire distance between the two end stations in the same collision domain.

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SMC Networks SMC108DT manual Connectivity Guidelines