Allied Telesis AT-FS705L - Manual (Page 13)

AT-FS705L Switch Installation Guide
3
Twisted Pair Ports
The AT-FS705L switch has five 10Base-T/100Base-TX twisted pair ports.
Each twisted pair port features a RJ-45 connector. The maximum operating
distance for the twisted pair ports is 100 meters (328 feet) when operating at
either 10 Mbps or 100 Mbps.
Port Speed
The twisted pair ports are compliant with the 10Base-T and 100Base-TX
standards and are capable of either 10 Mbps or 100 Mbps operation. Since the
ports are IEEE 802.3u auto-negotiation compliant, the switch will set the port
speed automatically. With auto-negotiation, the speed of the ports are set
automatically by the switch after it determines the speed of the end-node
connected to the port. Auto-negotiation is designed to ensure that the port on
the switch and the end-node are operating at the same speed and that they
are communicating at the highest possible common speed of the devices.
Duplex Mode
Duplex mode refers to the way an end-node sends and receives data on the
network. An end-node can operated 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 twisted pair ports on the AT-FS705L switch can operate in either half-
duplex or full-duplex mode. The switch sets the duplex mode automatically
through auto-negotiation. With auto-negotiation, if the end-node is capable of
full-duplex, the port is set automatically to full-duplex mode. If the end-node
is capable of half-duplex, the port is set automatically to half-duplex mode.