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Re: CP400 power supply ?



On Nov 27, 5:39=A0pm, nick markowitz <nmarkow...@xxxxxxxxx> wrote:
> Have an older CP400 Pyrotronix fire panel 80's vintage I tried to hook
> a 24 VDC Co detector to and it started chattering. I am thinking the
> power supplied by that older panel is unregulated DC and that's why Co
> does not like it. Sound right?

Could be an AC panel. Didn't some of the old fire panels used to be AC?


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