Type of cabling, Auto mdi/ mdix, Port pinouts – Allied Telesis AT-8088/xx (MT and SC) User Manual
Page 24: Type of cabling auto mdi/mdi-x port pinouts

Overview
24
Type of Cabling
For 10 Mbps operation, Category 3 or better 100 ohm shielded or
unshielded twisted pair cabling is required. For 100 Mbps operation,
Category 5 or Enhanced Category 5 (5E) 100 ohm shielded or unshielded
twisted pair cabling is required.
Auto MDI/
MDI-X
The twisted pair ports are auto-MDI/MDI-X. They automatically
configure themselves as either MDI or MDI-X. This feature allows you to
use either straight-through or crossover twisted pair cables to connect
devices to the ports.
Note
Disabling Auto-Negotiation on a port also disables Auto MDI/MDI-X
on the port. You must set the MDI/MDI-X manually through the
management software, refer to the AT-S39 Management
Software User’s Guide.
Port Pinouts
on page 84 for the port pinouts.