Cabling The Twisted Pair Ports - Allied Telesis AT-XS916MXT Installation Manual

Chapter 4: Cabling the Networking Ports

Cabling the Twisted Pair Ports

50
Here are the guidelines to cabling the 100/1000/10000Base-T twisted pair
ports:
The cable specifications for the twisted pair ports are listed in

Table 1 on page 21.
The connectors on the cables should fit snugly into the ports, and

the tabs should lock the connectors into place.
The setting for the wiring configurations of the ports is auto-MDI/

MDI-X. You cannot change the wiring configurations manually.
The default speed setting for the ports is Auto-Negotiation. This

setting is appropriate for ports connected to network devices that
also support Auto-Negotiation.
The default speed setting of Auto-Negotiation is not appropriate for

ports connected to 100Base-TX network devices that do not
support Auto-Negotiation and have fixed speeds. For those switch
ports, you should disable Auto-Negotiation and set the port's
speed manually to match the speeds of the network devices.
The 100/1000/10000Base-T ports must be set to Auto-Negotiation,

the default setting, to operate at 1000Mbps or 10Gbps.
The default duplex mode setting for the ports is Auto-Negotiation.

This setting is appropriate for ports connected to network devices
that also support Auto-Negotiation for duplex modes.
The default duplex mode setting of Auto-Negotiation is not

appropriate for ports connected to network devices that do not
support Auto-Negotiation and have a fixed duplex mode. You
should disable Auto-Negotiation on those ports and set their
duplex modes manually to avoid the possibility of duplex mode
mismatches. A switch port using Auto-Negotiation defaults to half-
duplex if it detects that the end node is not using Auto-Negotiation.
This can result in a mismatch if the end node is operating at a fixed
duplex mode of full-duplex.
Do not attach cables to ports of static or LACP port trunks until

after you have configured the trunks on the switch. Otherwise, the
ports will form network loops that can adversely affect network
performance.