3com 3C16790 ユーザーズマニュアル
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.
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)
associated with OfficeConnect products. Instead the product
has an automatic MDI / MDIX (Media Dependant Interface)
feature, it 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.
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.
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)
3C16734_Booklet.book Page 14 Monday, March 12, 2001 1:46 PM