ADTRAN 3192 H4TU-C, Установка и эксплуатация

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22 Issue 1, December 2003 61223404L2-5A
An example problem is illustrated in Figure 29 . For this
example, begin with three known measurements: 600
ohms first segment resistance, 700 ohms second
segment resistance, and 900 ohms third segment
resistance.
Refer to Figure 29 and the following steps to solve the
example problem:
a. Find the 900 ohms third segment resistance line on
the graph. This line is depicted in bold in Figure 29 .
This line is the upper span power limit.
b. Find the 600 ohms first segment resistance point on
the vertical axis.
c. Find the 700 ohms second segment resistance point
on the horizontal axis.
d. Find the instance on the graph where the points
from step b and step c meet.
e. If this point is below the bold line defined in step a ,
a circuit with these parameters is capable of span
powering two H4Rs and one H4TU-R.
Figure 29. Resistance Budget Span Powering (Example)