Guest alleycat Posted October 5, 2004 Share Posted October 5, 2004 Hi, hopefully someone can help with some wiring advice. We've just moved into a new house and I've replaced the old Optima XM panel with a Powermax+. All fine so far. I'm now coming to wire in the existing bell. The Optima had 6 contacts for the bell: Strobe +, Strobe -, Bell +, Bell - and 2 just labelled "SCB". The Powermax+ has the following: -HOLD, EXT, INT, +12V and also Zone 30, which I believe comes into it somewhere (it's a hardwired zone)! The manual's fine as far as EXT is the -ve for the bell and INT is the -ve for the strobe (assume I can feed the +12v to both strobe and bell even though they were separate contacts on the Optima?). I'm struggling a little with the ones that were marked "SCB". From reading the articles on the site, I'm guessing these are used to hold off the bell, in which case the -HOLD must be one end!? Would the other end just be +12v or is it likely to be some kind of tamper circuit that should trip the main panel, in which case that's probably where Zone 30 comes into it!? I know if using one of these Zones, I have to wire in 2 2k2 resistors. Hope my rambling description makes sense. Any help gratefully received! Thanks in advance, Alleycat Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/ Share on other sites More sharing options...
FASTCAR Posted October 5, 2004 Share Posted October 5, 2004 Looking at the manual , the Powermax only has 145mA to supply a sounder, and only a 9v power supply!! zone 30 is intended for a door circuit, but could be programmed 24hr as a bell tamper.If you are going to use your existing bell box , it would be better to give it its own battery backed psu , and use relays to activate the bell / strobe. Good luck Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26078 Share on other sites More sharing options...
Guest ALSEC Posted October 5, 2004 Share Posted October 5, 2004 That was a very technical way of saying "buy a new bell box"!!! Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26079 Share on other sites More sharing options...
Guest ALSEC Posted October 5, 2004 Share Posted October 5, 2004 Oh - now i've read the post properly - that won't work will it! Must read the full post before replying 100 times Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26080 Share on other sites More sharing options...
FASTCAR Posted October 5, 2004 Share Posted October 5, 2004 That was a very technical way of saying "buy a new bell box"!!! or buy a real alarm !! BTW how does the powermax+ differ from the standard powermax? Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26081 Share on other sites More sharing options...
Guest ALSEC Posted October 5, 2004 Share Posted October 5, 2004 buy a real alarm!! i have no idea what the difference is and to be honest i really can't even be bothered to find out! Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26083 Share on other sites More sharing options...
Guest alleycat Posted October 5, 2004 Share Posted October 5, 2004 Looking at the manual , the Powermax only has 145mA to supply a sounder, and only a 9v power supply!! Hi, thanks for the quick reply. I think the spec may have changed a little as it's saying it's ok supplying 12v and that the sounder shouldn't draw more than 550mA in full alarm. Not sure if that's much better but I looked at a few bellboxes and most seem to be below this. Not averse to buying new box - less comfortable being up the ladder with the drill! Are most rectangular boxes similar size? Alleycat Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26084 Share on other sites More sharing options...
Guest ALSEC Posted October 5, 2004 Share Posted October 5, 2004 Looking at the manual , the Powermax only has 145mA to supply a sounder, and only a 9v power supply!! Hi, thanks for the quick reply. I think the spec may have changed a little as it's saying it's ok supplying 12v and that the sounder shouldn't draw more than 550mA in full alarm. Not sure if that's much better but I looked at a few bellboxes and most seem to be below this. Not averse to buying new box - less comfortable being up the ladder with the drill! Are most rectangular boxes similar size? Alleycat 26084[/snapback] the most common bells around are texecom, if you want rectangular then go for odyssey 1 or 2, they come with instructions on how to connect to most panels. You can pick one up from an internet store for around £30 (this is not a trade price). Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26086 Share on other sites More sharing options...
Guest ALSEC Posted October 5, 2004 Share Posted October 5, 2004 In fact, have a look at www.visonic.co.uk - it looks like they actually do a wireless siren!!! Wow!! Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26087 Share on other sites More sharing options...
Guest alleycat Posted October 5, 2004 Share Posted October 5, 2004 OK, thanks ALSEC, will look into one and get me ladders out! By the way PM+ is Class 5 and the wireless bits run at 868MHz. Not sure if that answers the question!? Link to comment https://www.thesecurityinstaller.co.uk/community/topic/3809-bell-wiring-advice-please/#findComment-26090 Share on other sites More sharing options...
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