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Re: PIRs
- To: ukha_d@xxxxxxx
- Subject: Re: PIRs
- From: "andy_powell_is" <ukha@xxxxxxx>
- Date: Wed, 16 Jan 2002 16:38:34 -0000
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
Dan,
The powerflash 'input' contacts can take up to 30v dc ... if that
helps..
Andy
--- In ukha_d@y..., "mail.inovem.com" <dhk@i...> wrote:
> Just a quickie,
>
> I am about to purchase some PIRs and an X10 powerflash module (for
testing).
>
> The PIR spec states:
>
> a.. Alarm output: Normally closed voltage free relay contacts,
rated at
> 24VDC, 50mA protected by 18-ohm series resistor
>
> What signal is sent when the PIR is triggered? 24V? What does the
voltage
> free bit mean? Does it mean that the actual contact that is wired
into on
> the PIR are voltage free (thus you don't fry yourself when
connecting it
> up?). Is 24VDC too much for a powerflash?
>
> Little bit confused...
>
> -Dan
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