Allied Telesis AT-MC602 - Manual (Page 15)

AT-MC601, AT-MC602 Installation and User’s Guide (For Use with AT-MCR12 Only)
15
Auto-Negotiation.The network extenders Auto-Negotiate the
speed and duplex mode of the Ethernet link, so that the link comes up in
the highest performance configuration supported by both ends.
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-MC601 and AT-MC602 network extenders can operate in either
half- or full-duplex mode. The network extender can operate with end-
nodes capable of either 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 network extenders
must be able to operate in the same duplex mode.
RJ-45 Port Pinouts.Figure 4 illustrates the pin assignments of an
RJ-45 connector and port.
Figure 4 RJ-45 Connector and Port Pin Assignments
Table 3 lists the RJ-45 10Base-T/100Base-TX connector pins and their
signals when the port is operating in either MDI or MDI-X configuration.
Table 3 RJ-45 Port Pinouts
Pin MDI Signal MDI-X Signal
1 TX+ RX+
2 TX- RX-
3 RX+ TX+
6 RX- TX-
8
8
1 1