Intel 220T - Manual (Page 13)

11
Bridging 210T Hubs
All ports on the Express 210T hub operate at the same speed (10Mbps or
100Mbps) so the hub belongs to only one segment at a time. The 210T hub
doesn’t contain an internal bridge. To communicate, the segments must be
bridged by a 220T hub or by an external device (like a 10/100 switch).
Example 2: Bridging with a 10/100 switch
In a stack of 210T and Express 10/100 hubs, the hubs at 10Mbps can
communicate and the hubs at 100Mbps can communicate. However, hubs at
10Mbps can’t communicate with hubs at 100Mbps. You can use a switch
with individual ports that can operate at 10Mbps or 100Mbps to bridge hubs.
100Mbps
10Mbps
10Mbps
100Mbps
Example 3: Bridging with an Ethernet Module
Another way to bridge segments is to use an Ethernet Module. Plug the
module into the expansion port of a 12-port hub operating at either 10Mbps
or 100Mbps. Next, use UTP cable to connect the module to a hub operating
at the other speed. Since the Ethernet Module is a switched port, it bridges
the two segments.
100Mbps
10Mbps
10Mbps
100Mbps
Ethernet
Module
210T (Hub 1)
210T (Hub 2)
10/100 (Hub 3)
10/100 (Hub 4)
Use a crossover
cable to connect
the hub to the
switch.
Cascade
Cable
Cascade
Cable
Use a UTP cable
to connect from
a port on the
module to a port
on the hub.
10/100 switch
210T (Hub 1)
210T (Hub 2)
10/100 (Hub 3)
10/100 (Hub 4)