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Installation Guide for the Model SW510 and Model SW518 Ethernet Switches
HDX/FDX/AUTO Duplex Toggle Switches
Full-duplex mode is supported for all 10 Mbps or 10/100 Mbps ports and allows the port to
transmit and receive data at the same time. Full-duplex operation applies only to point-to-point
access (for example, when a switch is connected to a PC, a server, or another switch). Because
repeaters and hubs use a common collision domain for all communications and cannot
communicate in a full-duplex mode, the associated 10 Mbps port on the switch should be set to
half-duplex operation when connecting to these types of devices.
Setting the toggle switch to AUTO on the 10/100 Mbps port enables the port to determine duplex
mode automatically. In this mode, the 10/100 Mbps port operates in either full- or half-duplex
mode, depending on the operating mode of the remote port. If the remote port cannot provide the
proper signal to indicate its own capability, the 10/100 Mbps port on the switch operates in
half-duplex mode.
As illustrated in
Figure 2-4
and
Figure
2-5, one half-duplex (HDX) and full-duplex (FDX) toggle
switch is assigned to each 10 Mbps port on a switch. On the Model SW510 switch, the 10 Mbps
ports are ports 1 through 8; on the Model SW518 switch, the 10 Mbps ports are ports 1 through 16.
The communication mode can be set to either half-duplex or full-duplex mode.
One FDX and AUTO toggle switch is assigned to each 10/100 Mbps port on a switch. On the
Model SW510 switch, the 10/100 Mbps ports are ports 9 and 10; on the Model SW518 switch, the
10/100 Mbps ports are ports 17 and 18.The communication mode can be set to either full-duplex
or auto-duplex mode.
2-6
Physical Description
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