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<blockquote data-quote="Steve Maksim" data-source="post: 74179" data-attributes="member: 1973">Re: Hey digital console users don&#039;t forget your UPSSo in an permanent installation, how would you combine a UPS for the console with a power sequencer for the entire system?&nbsp; --Simply plugging the UPS in between the output of the sequencer and the console would seem like a disaster because the UPS would think the mains got killed when the sequencer was just trying to power down the board.&nbsp; --Using a active-high control signal to the UPS from the sequencer wouldn&#039;t seem like a good design because then if the power went off momentarily in the house then the UPS would think that it was being given the signal (or lack thereof) to shut down.So use an active-low control signal (like a normally open relay so that the UPS wants to be on when there&#039;s no voltage on the control line and wants to be off when there is voltage on the control line) to control the UPS?</blockquote>

[QUOTE="Steve Maksim, post: 74179, member: 1973"] Re: Hey digital console users don't forget your UPS So in an permanent installation, how would you combine a UPS for the console with a power sequencer for the entire system? --Simply plugging the UPS in between the output of the sequencer and the console would seem like a disaster because the UPS would think the mains got killed when the sequencer was just trying to power down the board. --Using a active-high control signal to the UPS from the sequencer wouldn't seem like a good design because then if the power went off momentarily in the house then the UPS would think that it was being given the signal (or lack thereof) to shut down. So use an active-low control signal (like a normally open relay so that the UPS wants to be on when there's no voltage on the control line and wants to be off when there is voltage on the control line) to control the UPS? [/QUOTE]

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