Allied-telesis AT-GS908 Manuel d'utilisateur télécharger pdf (Page 26)

Installation

Planning the Installation

Table 2 contains the cabling specifications for the twisted pair ports.

Note

The twisted pair ports on the switch feature auto-MDI when

operating at either 10 or 100 Mbps. Each port is individually

configured as MDI or MDI-X when connected to an end-node.

Consequently, you can use either a straight-through or crossover

twisted pair cable when connecting any network device to a

twisted pair port on the switch. A port operating at 10 or 100 Mbps

uses two pairs of twisted pair wiring.

Note

Twisted pair ports operating at 1000 Mbps must use a straight-

through cable. A port operating at 1000 Mbps uses four pairs of

twisted pair wiring.

Table 2 Twisted Pair Cabling and Distances

Speed Type of Cable

Maximum

Operating

Distance

10 Mbps Category 3 or better 100-ohm

shielded or unshielded twisted pair

cable

100 m (328 ft)

100 Mbps Category 5 or Category 5E

(Enhanced) 100-ohm shielded or

unshielded twisted pair cable

100 m (328 ft)

1000 Mbps Category 5 and Category 5E

(Enhanced) 100-ohm shielded or

unshielded twisted pair cable

100 m (328 ft)

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Allied-telesis AT-GS908 Manuel d'utilisateur Page 26