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Addendum
2.4 Problems in practical connection-
In special circumstances it may be necessary to adopt a star
configuration to achieve the best connection. the termination
resistors must be connected to the two items of equipment that are
farthest away from each other, such as items 1 and 15 in Figure 39.
As the star configuration does not conform to the RS485 standards,
problems such as signal reflections and lower anti-interference
performance may arise when the connecting cables are too long. The
reliability of the control signals is decreased and the camera may not
respond. It may respond intermittently or operate continuously
without stopping (refer to Figure 40).
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