Allied Telesis AT-MC105XL Guía de instalación descargar pdf (Pagina 14)

The RJ-45 port on the AT-MC105XL and AT-MC106XL media converters

features an MDI/MDI-X switch. You can use this switch to configure the

twisted pair port on the media converter as either MDI or MDI-X. This feature

allows you to use either straight-through or crossover cables when connecting

end-nodes to the media converter. This eliminates the need for a cross-over

cable.

Half- and Full-Duplex Mode

Duplex mode refers to the way an end-node sends and receives data on the

network. An end-node can operate in either half- or full-duplex mode,

depending on its capabilities. An end-node that is operating in half-duplex

mode can either send data or receive data, but it cannot do both at the same

time. An end-node that is operating in full-duplex mode can send and receive

data simultaneously. The best network performance is achieved when an end-

node can operate at full-duplex, since the end-node is able to send and receive

data simultaneously.

The AT-MC105XL and AT-MC106XL media converters can operate in either

half- or full-duplex mode. The media converter can operate with end-nodes

capable of half-duplex, full-duplex or that can auto-negotiate the duplex mode.

However, it is important to remember that the two end-nodes connected to the

ports on the media converter must be able to operate in the same duplex

mode.

NML/LNK TST Button

The NML/LNK TST (Normal MissingLink/Link Test) button allows you to

perform a link test on the ports on the media converter. This button also

allows you to activate the MissingLink feature on the unit. The MissingLink

and Link Test features are describe below.

MissingLink. The MissingLink feature allows the ports on the media converter

to pass the “Link” status of their connections to each other. When the media

converter detects a problem with one of the ports, such as the loss of

connection to an end-node, the media converter shuts down the connection to

the other port, thus notifying the end-node that the connection has been lost.

For example, if the twisted pair cable to the AT-MC105XL were to fail, the

media converter would respond by dropping the link on the fiber optic port. In

this way, the AT-MC105XL notifies the end-node connected to the fiber optic

port that the connection on the twisted pair port has been lost. If the failure

had started with the fiber optic cabling, the media converter would drop the

link to the twisted pair port.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 41 42

Sin comentarios

Allied Telesis AT-MC105XL Guía de instalación Pagina 14