3Com 3C16751A - Manual (Page 12)

12
3Com recommends that the cable (B) between the Fast
Ethernet hubs is no longer than 5m (16.4ft). This allows the
maximum hub-to-workstation cable length (A or C) of 100m
(328ft) to be used, as shown in Figure 3.
Figure 3 Configuration Rules and Example of a Fast Ethernet
(100Mbps) Network
Ethernet (10Mbps) Configuration Rules
You can connect a maximum of four Ethernet (10Mbps)
hubs in series between workstations, or between a
workstation and a non-repeater piece of equipment (such as
a switch). Each cable must not exceed 100m (328ft). An
example is shown in Figure 4.
Figure 4 Example of an Ethernet (10Mbps) Network
5m (16.4ft) 100m (328ft) 100m (328ft)
Dual
Speed
Hub 16
100Mbps
Hub
Example:
B C A
Hub Hub
Workstation
Workstation
Workstation
Workstation
Switch
100Mbps
link
Dual
Speed
Hub 16
10Mbps
Hub
10Mbps
Hub
10Mbps
Hub
Workstation Workstation
Switch
10Mbps
link Example:
3C16751_booklet.book Page 12 Tuesday, July 13, 1999 11:29 AM