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The example shown below allows up to 2,500m between nodes. In order to extend communication
distance, link cables are used (with repeaters at both ends). The maximum length of one link is 500
m. These cables are referred to as "link segments."
The link segments must not connect nodes directly. However, the areas surrounded by dotted lines,
including repeaters at both ends, are treated as a single repeater. This does away with the limitation
on the total number of repeaters between nodes in a system.
Link segment 1
Basic connections in a 10BASE5 system (maximum 2500 m using repeaters)
Each link segment must be 500 m or less.
Do not connect a node to the link segment.
A link segment is treated as one repeater, even though it includes a repeater at each end (enclosed
with dotted lines).
No more than two repeaters shall exist along the path between any two nodes.
Only one segment in the network can be connected to more than two repeaters.
Link segment 2
Segment B
: Area inside this
rectangle is treated
as one repeater
Segment D
CAUTION
7-3
Chapter 7: Computer Link Function
7
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