Cabling The Twisted Pair Ports - Allied Telesis AT-IE300-12GP Installation Manual

Chapter 4: Cabling the Ports

Cabling the Twisted Pair Ports

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Here are the guidelines to cabling the 10/100/1000Base-T twisted pair
ports on the cards:
The ports have 8-pin RJ45 connectors.

The cable specifications for the twisted pair ports on the AT-IE300-

12GT Switch are listed in Table 1 on page 25.
The cable specifications for the twisted pair ports on the AT-IE300-

12GP Switch are listed in Table 3 on page 27.
The connectors on the cables should fit snugly into the ports, and

the tabs should lock the connectors into place.
The default setting for PoE and PoE+ on ports 5 to 12 on the AT-

IE300-12GP Switch is enabled.
The default setting for Hi-PoE on ports 9 to 12 on the AT-IE300-

12GP Switch is disabled.
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 network devices that do not support Auto-
Negotiation and have fixed speeds of 10 or 100 Mbps. For those
switch ports, disable Auto-Negotiation and set the port's speed
manually to match the speeds of the network devices.
The 10/100/1000Base-T ports must be set to Auto-Negotiation, the

default setting, to operate at 1000Mbps.
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. 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.
The default wiring configuration of the ports is automatic MDIX

detection, which configures the MDI/MDIX setting automatically.
This setting is appropriate for switch ports that are connected to
network devices that also support the feature.
The default wiring configuration of automatic MDIX detection is not

appropriate for ports that are connected to network devices that do