Chapter 1 Introduction and Planning
1-5
Figure 1-2. Hubs B and C are Cascaded from Hub A
Interconnecting 8237s
You can increase the number of ports available to end stations by adding 8237s to a
network and interconnecting them using the Stack Link cable. Up to ten 8237s can
be linked through the Stack Link port. The total hub Stack Link cable length from the
first to the last 8237 can be up to 75 m (246 ft). When the Stack Link cable is used,
management information can be passed between hubs, enabling management of an
entire stack. If hubs in a stack are configured into different segments, they can still
be managed by one Model 002 or Model 003.
There are three benefits from using the Stack Link ports to interconnect 8237s: the
maximum number of hops between any two workstations directly connected to
8237s is kept at one (or one and one-half if the total Stack Link cable distance is
greater than 45.7m (150 ft)), ports intended for connecting workstations are not
being used for interconnecting 8237s, and an entire stack of 8237s can be managed
by one Model 002 or Model 003.
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