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Data Communications
MULTIPOINT CONSIDERATIONS
Having selected multipoint you must now make the series ofdecisions illustrated in figure 7-6.
Before starting, it is necessary for you to know several definitions unique to multipoint
configurations:
• Daisy Chain - A group of terminals connected to a single modem is said to be daisy chained
because they are connected in series.
• First Multipoint Terminal (or Cable) -The first terminal or cable in a daisy-chained group,
starting from the modem.
• Daisy-Chain Terminal (or Cable) - Any terminal or cable in a daisy-chained group, other
than the first one.
I
Daisy
Chain
I
Hardwired
I
I
Asynchronous
I
I
DSN
Data Link
I
Modem
Multipoint
I
I
Hardwired
I
Synchronous
I
I
Modem
Figure 7-6. HP Multipoint Decision Tree
7-15
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