Allied Telesis AT-SBx31CFC960 - Manual (Page 58)

Chapter 2: Overview of the Ethernet Line Cards
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 You may use straight-through or crossover cables on ports that are
connected to network devices that support automatic MDIX
detection and that operate at 10 or 100 Mbps.
 You must use straight-through cables on ports that are connected
to network devices that have a fixed wiring configuration of MDI
and that operate at 10 or 100 Mbps.
 You must use crossover cables on ports that are connected to
network devices that have a fixed wiring configuration of MDIX and
that operate at 10 or 100 Mbps.
Port Pinouts Refer to Table 39 on page 286 for the port pinouts of twisted-pair ports
that operate at 10 or 100 Mbps in the MDI configuration and Table 40 on
page 286 for the MDI-X configuration. For port pinouts when a twisted-pair
port operates at 1000 Mbps, refer to Table 41 on page 287.