Edge-Core ES4016 Guía de instalación descargar pdf (Pagina 33)

4-3

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the connectivity rules

listed in the manuals for these products. However, note that because switches break

up the path for connected devices into separate collision domains, you should not

include the switch or connected cabling in your calculations for cascade length

involving other devices.

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also

work for 1000BASE-T, providing that all four wire pairs are connected. However, it is

recommended that for all critical connections, or any new cable installations,

Category 5e (enhanced Category 5) or Category 6 cable should be used. The

Category 5e specification includes test parameters that are only recommendations

for Category 5. Therefore, the first step in preparing existing Category 5 cabling for

running 1000BASE-T is a simple test of the cable installation to be sure that it

complies with the IEEE 802.3-2005 standards.

1000 Mbps Gigabit Ethernet Collision Domain

100 Mbps Fast Ethernet Collision Domain

10 Mbps Ethernet Collision Domain

Table 4-1. Maximum Gigabit Ethernet Cable Length

Type Cable Type Max. Cable Length Connector

1000BASE-T Category 5, 5e, 6 100-ohm UTP or STP 100 m (328 ft) RJ-45

Table 4-2. Maximum Fast Ethernet Cable Length

Type Cable Type Max. Cable Length Connector

100BASE-TX Category 5 or better 100-ohm UTP or STP 100 m (328 ft) RJ-45

Table 4-3. Maximum Ethernet Cable Length

Type Cable Type Max. Cable Length Connector

10BASE-T Twisted Pair, Categories 3, 4, 5 or better

100-ohm UTP

100 m (328 ft) RJ-45

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 55 56

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Edge-Core ES4016 Guía de instalación Pagina 33