3Com 16 Plus - Manual (Page 14)

14
Checking Unit Connections
When you have connected all your units, power on the
units and the Switch. The Port Status LEDs for the ports you
have used on both the units and the Switch should be on. If
they are not, check your connections.
Figure 4 Correct Connections for an OfficeConnect Hub
There is no uplink/normal push switch that is usually
associated with OfficeConnect products. Instead the product
has an automatic MDI / MDIX (Media Dependant Interface)
feature, which means either a 'straight through' or
'crossover' UTP cable can be used in any Switch port to
make the connection to other switches, hubs and
workstations. The switch will automatically detect which
wiring practice has been followed and will compensate
accordingly.
Spot Checks
At frequent intervals, visually check that:
■ The Alert LED is off — this is the best way to find out if
there are problems with your network.
■ Case vents are not obstructed.
■ Cabling is secure and not pulled taut.
OfficeConnect
Switch
OfficeConnect
Hub
Twisted pair cable
with RJ-45 connectors.
Maximum length is
100m (328ft)