Trane Engineered Smoke Control System Application Manual page 147

Understanding bindings
Figure 74. One-way subnet/node binding
In the example shown in Figure 75 on page 135, the custom bindings
consume an address table entry in both MP581-A and MP581-B. Both
MP581s are now transmitters of data. Both are subnet/node bindings.
Figure 75. Two-way subnet/node bindings
A group binding is shown in Figure 76. In this case, in every member's
address table, an entry number and group number are listed. A group
binding made in this way is also called a fan-out binding.
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