SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
Bits 8:0 give the next channel to use to create a composite frame. The next channel must be to a free channel. The last channel of a row should point back to the initial channel which must be a channel tied directly to a client. The Descriptor for the Next Channel must be of the same type as the current descriptor.