CHAPTER 7: CONFIGURATIONS 61Redundant ConfigurationThe procedure outlined below must be followed to ensure this configuration functions properly:− After installation, all UMT Matrix Switches should undergo a FUNC reset to clear the switchdatabase. This procedure should be performed starting from the third tier device down to the baseunit.− Execute the FUNC reset in the following order: UMT-3A → UMT-3B → UMT-2A → UMT-2B→ UMT-Base 1 → UMT-Base 2.− Whenever a third tier UMT Matrix Switch is replaced, all of the second tier and base UMT MatrixSwitches should undergo a FUNC reset.− Whenever a second tier UMT Matrix Switch is replaced, all of the base UMT Matrix Switchesshould undergo a FUNC reset.− Whenever a base UMT Matrix Switch is replaced, only the new UMT Matrix Switch shouldundergo a FUNC reset.Figure 56 Redundant ConfigurationUST USTUMT-3A UMT-3BUMT-2A UMT-2BUMT-Base1 UMT-Base2UST UST