Network Communications—N2 Communications Bus
29
Figure 14 shows the star configuration, in which the first three repeaters
are installed in a central location and each device is wired from each
repeater.
NCU
(5000 ft)
(5000 ft) (5000 ft)
(5000 ft)
(5000 ft)
Repeater
Repeater Repeater
Repeater
Repeater
A: EOL In
NCM's
EOL In
B: EOL In
B: EOL In
EOL In
A: EOL Out
A: EOL Out
A: EOL Out
Central Location
1-slot NEU
Self
Termination
EOL In
1-slot NEU
EOL In
1-slot NEU
Self
Termination
A: EOL In
B: EOL In
B: EOL Out
(4997 ft)
(5000 ft)
B: EOL In
REPEATST
(3 ft)
N2 Bus
Maximum cable distance between
two repeaters is 1524 m ( 5000 ft). There is
no rule for minimum distance between repeaters.
Note:
ASC
(UNT Shown)
ASC
(UNT Shown)
1524 m
1523 m
1524 m
1524 m 1524 m
1524 m
1524 m
0.9 m
Figure 14: Repeater Star Configuration
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