If a device supports Multi Channel associations, the association is created to a “end point” in a multi channel device. This is similar to the single instance association, only instead of a single “assocIn” slot, the device also has multiple “assocInEpn” slots, where n is the end point number.

Figure 29 shows an example of Multi Channel association links.

The Figure 29 example is from an application that has two nodes, node_2 (left) and node_3 (right). Each node is a 2-gang light switch, that is, each node can control two separate lights. In this case, lights are only wired to node_2.

The need is for switch 1 on either node to control light 1, and for switch 2 on either node to control light 2.

In the Figure 29 example, devices used were Astral LSM12s devices. When the link to associate switch 1 to light 1 was originally added, it was added as a link from “group1” to “assocInEp1”. However, the device reported back the link as a single instance link to the “assocIn” slot—and as such, the link automatically “moved itself” to that destination slot!At the time of this document, it is not known if this is “typical behavior” for end point 1 associations on multi channel devices.