To connect to Evertz multiviewers TallyMan sends TSL UMD over a UDP connection.
Note: A common reason for not being able to connect is that the Evertz Multiviewer has not been rebooted when the protocol and/or comms settings have been changed. Evertz MVs need to be rebooted for these changes to take effect.
The link below is to a guide explaining the complete setup for Evertz Multiviewer connection:
Connecting TallyMan to an Evertz VIP-X Multiviewer
For additional information regarding UMD/MV setup within TallyMan, please take a look at the document linked below: