Allied Telesis AT-GS900/16 manual Planning the Installation, Speed Type of Cable Maximum

Chapter 2: Installation

Planning the Installation

Table 4 contains the cabling specifications for the twisted pair ports.

Table 4. Twisted Pair Cabling and Distances

Speed	Type of Cable	Maximum
		Operating
		Distance
10 Mbps	Category 3 or better 100-ohm	100 m (328 ft)
	shielded or unshielded twisted pair
	cable
100 Mbps	Category 5 or Category 5E	100 m (328 ft)
	(Enhanced) 100-ohm shielded or
	unshielded twisted pair cable
1000 Mbps	Category 5 and Category 5E	100 m (328 ft)
	(Enhanced) 100-ohm shielded or
	unshielded twisted pair cable

Note

The twisted pair ports on the switch feature Auto-MDI when operating at either 10, 100, or 1000 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. For example, a port operating at 10 or 100 Mbps uses two pairs of twisted pair wiring while a port operating at 1000 Mbps uses four pairs of twisted pair wiring.

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