Allied Telesis AT-GS905 - Manual (Page 24)

Installation
24
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)