RISCO Group Gardtec GT600 - Manual (Page 31)

Program the Tag as Mains Fail. Then program a Digi Channel as Mains Fail.
This will allow for full reporting of External PSUs.
This concludes the Step by Step instruction for the Zone Programming.
107) When you have finished programming zones, press
0 (zero) until the display shows:-
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GT 600 / 601 Engineer’s Reference Guide
01 Jan 00: 00: 01