Martin Audio MLA User Manual page 240

MLA System
If this is the case, select the Merlin and click on the 'Reverse U-Net ports' button and the port position is reversed in the system
diagram hopefully making the network connections look neater;-
Note: this button reverses the port positions in the system diagram ONLY. It does NOT make and electrical changes to the two
U-Net ports, it is purely and simply a graphical change.
MLA System User Guide V2.1
USER GUIDE
240