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Inter-unit
Idle
One-end Dual Block
High Low
Blocked
Block High High
Blocked Block
Block (Low)
X
Low
Idle
High
Low
Blocked
X
Idle
End-unit
Start
From inter
--
Idle
Low
Low
Low
High
High
Idle
I
High
(Low)
Low
Figure 10: State and output tables
for dynamic connections.