Grass Valley Trinix v.2.4.1 - Manual (Page 186)

Protected Path Configuration
186 Planning and Installation Manual
Figure 109.
5. Assign one logical matrix to the primary level, assign primary
logical matrix “Element 1” to be the Segment created in Step Step 2
above.
6. Assign the other logical matrix to the secondary level, assign
secondary logical matrix “Element 1” to be the Segment created in
Step Step 2 .