2 - 12 ONline 10BASE-T Security Module Installation and Operation Guide
In the example shown in Figure 2-2, if two patch panels were used
between the top right PC and the top right concentrator, you would have
to shorten the link distance of 100 meters to 90 meters. This is because the
maximum allowable link distance on 22 gauge wire using 10BASE-T
signaling with two intervening patch panels is 100 meters minus
approximately 10 meters.
Note that a patch panel installed between the bottom right PC and the
bottom left concentrator would not affect the link because it is only 20
meters away.
Redundant Links
You can implement twisted pair link redundancy between ONline System
Concentrators using network management. Figure 2-3 shows an example
of a redundant configuration between concentrators using Security
Modules.
Figure 2-3. Redundant Twisted Pair Configuration