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Hardware Thread, Er.... Anyone bought a school bell system recently? in Technical; Our current bell ringing system is a Heath Robinson contraption that doesn't keep time very well (or settings following a ...
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    Er.... Anyone bought a school bell system recently?

    Our current bell ringing system is a Heath Robinson contraption that doesn't keep time very well (or settings following a power failure). It's hardwired into mechanical bells all round the school and I'd like to replace the schedule / ringer unit and keep the existing bells.

    Google turns up a lot of "use your PC speakers / tannoy system" type stuff, but we don't have a tannoy and we want to use the (known good, not unpluggable) existing bells.

    Yeah, I know - cron job, web front end, serial port and a relay. But I've been asked to find a decent commerical product, so I am doing.

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    plexer's Avatar
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    Re: Er.... Anyone bought a school bell system recently?

    Our school bells run of a timer that is wired into the mains just a central heating controller really.

    Ben

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    tech_guy's Avatar
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    Re: Er.... Anyone bought a school bell system recently?

    We use one that's integrated with the fire alarm system - so I'd look at what those sort of companies are offering. The maintenance/property people at your LEA should be able to help.

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    Re: Er.... Anyone bought a school bell system recently?

    Quote Originally Posted by tech_guy
    The maintenance/property people at your LEA should be able to help.
    Yeh.. how about getting your caretaker/site dude to do it!?

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    Re: Er.... Anyone bought a school bell system recently?

    *laughs hollowly at the idea of site people getting off their collective arses*

    I'll have a word with our alarm blokes.

    @plexer
    Don't suppose you know the make/model?

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    Re: Er.... Anyone bought a school bell system recently?

    Our head had the bells turned off. Makes the day more civil.

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    Re: Er.... Anyone bought a school bell system recently?

    We don't have any issues with the LEA guys - they're pretty good and the response is ok.

    Our Head has had the bells turned off between lessons so they only sound for the start of the day, break, lunch & the end of the day. Bloody stupid - we have kids spilling out of lessons too early or late, so that lesson changes can take anything up to ten minutes.....I'm sick of kids wandering around when they should be in lessons.

    Our poor old caretakers have to periodically go around the site and make sure that all the clocks in the classrooms tell the same time. They get megapissedoff when daylight saving comes around I can tell you!

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    Re: Er.... Anyone bought a school bell system recently?

    http://cpc.farnell.com/jsp/Electrica...sp?sku=MC00879

    We have one of these wired into our bells. It had been here longer than me - probably a lot longer actually. Anyway, it broke - CPC still did them. I was able to swap the front plate over - works a treat again

    Andy

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    Re: Er.... Anyone bought a school bell system recently?

    Yup that looks just like ours.

    Ben

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    Re: Er.... Anyone bought a school bell system recently?

    Exactly the same one here. The manual overide is handy for half term as an I'm locking up alarm

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    Re: Er.... Anyone bought a school bell system recently?

    Thanks, Farnell's site doesn't mention battery backup - does it have one to keep settings?

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    Re: Er.... Anyone bought a school bell system recently?

    Quote Originally Posted by plexer
    Yup that looks just like ours.

    Ben
    And ours

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    Re: Er.... Anyone bought a school bell system recently?

    Thanks everyone for responding. For future info, the units come with a 3.6v 100ma battery soldered onto the board, which can be replaced.

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    Re: Er.... Anyone bought a school bell system recently?

    Yup mines one of them as well

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    Re: Er.... Anyone bought a school bell system recently?

    Looks a lot like ours as well!

    @tech_guy, I'm sure the teachers love that, kids turning up late to lessons...........

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