Allied Telesis AT-GS924GB - Manual (Page 28)

Installation
16
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.
Note
For cabling information for an optional GBIC module, refer to the
installation guide included with the module.
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)