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x510 Series Installation Guide for Stand-alone Switches

10/100/1000Base-T Twisted Pair Ports

The switches have 24 or 48 10/100/1000Base-T ports.

Speed The ports can operate at 10, 100, or 1000 Mbps. The speeds may be set

manually using the management software or automatically with Auto-

Negotiation (IEEE 802.3u), the default setting.

Note

The ports must be set to Auto-Negotiation to function at 1000 Mbps

and are not compatible with devices that are not IEEE 802.3u

compliant.

Duplex Mode The twisted pair ports can operate in either half- or full-duplex mode. The

duplex mode of a port, like port speed, may be set manually using the

management software or automatically with Auto-Negotiation (IEEE

802.3u), the default setting.

The speed and duplex mode settings of a port may be set independently

of each other. For example, a port may be configured such that its speed

is set manually while its duplex mode is established through Auto-

Negotiation.

Note

A switch port should not use Auto-Negotiation to set its duplex mode

if it is connected to a network device that does not support Auto-

Negotiation for 10 or 100 Mbps operation and has a fixed duplex

mode of full-duplex. Otherwise, a duplex-mode mismatch may occur

in which a switch port and a network device operate at different

duplex modes. The duplex modes of switch ports that are connected

to network devices that do not support Auto-Negotiation should be

set manually through the management software.

Wiring

Configuration

The wiring configuration of a port operating at 10 or 100 Mbps can be MDI

or MDI-X. The wiring configurations of a switch port and a network device

connected with straight-through twisted pair cabling have to be opposite,

such that one device is using MDI and the other MDI-X. For instance, a

switch port has to be set to MDI-X if it is connected to a network device set

to MDI.

You may set the wiring configurations of the ports manually or let the

switch configure them automatically with auto-MDI/MDI-X (IEEE 802.3ab-

compliant). This feature enables the switch to automatically negotiate with

network devices to establish their proper settings.

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Allied Telesis AT-x510-52GTX Installationsanleitung Seite 23