3Com OfficeConnect 140M User Manual page 55

Interactive Access should only be enabled on ports
that connect to a single workstation, switch, bridge or
router. You should disable Interactive Access on a port
if:
The port is connected to a hub (for example
OfficeConnect Hub 8/TPO).
The port is connected to a device with Interactive
Access enabled.
Duplex Half / Full
Specifies whether the port operates in half duplex
mode or full duplex mode:
This field is fixed as half duplex for the 10BASE-T
ports.
Full duplex — Full duplex allows frames to be
transmitted and received simultaneously and, in
effect, doubles the potential throughput of a link.
You should only enable full duplex on a link
between the switch and another device with full
duplex support.
Half duplex — You should use half duplex if the
port connects to a shared Ethernet network
segment, or if the device at the other end of the
link does not support full duplex.
You cannot have IFM enabled for full duplex ports,
so if you select full duplex, IFM is disabled.
Port Type Shows the port type.
Link State Shows the state of the link to the port.
This can be 'Present' or 'Not present'.
Lost Links Shows the number links lost since the
switch was last reset, initialized or powered on.
Unit Pages 4-17