----- Original Message ----- > From: "Adam Thompson" <athomp...@merlin.mb.ca>
> Now I'm curious... in all of the DCs and COs I've worked in - to the best of > my > knowledge, I haven't personally tested this! - the EPO button does not switch > to emergency power. It turns off ALL equipment power in the space - no > lights, > no klaxons, nothing. In simpler setups, the EPO is connected to the UPS so > anything plugged in to the UPS does dark instantly. In one DC I'm familiar > with, the EPO switch kills all the UPS output and uses several relays to kill > commercial power at the same time. > In some, the room lights were not covered by the EPO switch, in some they > were. > Emergency exit lamps will continue to be lit, as they have internal batteries, > and are required by building/fire code. > > Is it (somewhat) common for an EPO switch to only disconnect commercial power > and leave local redundant power live? What sort of facilities would have > this? No... I just hadn't had my coffee yet that morning and I crossed the streams. That should be the response to the *ATS cutover*, not the Molly switch. If someone hits the Molly button, you don't *need* an alarm. :-} Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274
