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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Fire Safety => Topic started by: Brian Catton on September 22, 2005, 07:40:49 PM

Title: key operated fire alarm points.
Post by: Brian Catton on September 22, 2005, 07:40:49 PM

Apparently Apollo who were manufacturing an addressable key operated alarm point no longer do so. Although another company make KOP 's they need an interface box and there is currently a 60 days wait for supply. Has anyone else had this problem or knows about it?

Title: key operated fire alarm points.
Post by: Graeme on September 22, 2005, 08:05:28 PM

KAC make the  mcp's for Apollo.
Never knew apollo had them in their range.

I take it you need an Addressable mcp?

Title: key operated fire alarm points.
Post by: AnthonyB on September 22, 2005, 10:19:28 PM

just checked with KAC's website and they still produce key switch & push button MCPs, but appear to be specials now rather than a standard stock item.

http://www.kac.co.uk/

Title: key operated fire alarm points.
Post by: Graeme on September 22, 2005, 11:23:53 PM

http://www.sti-europe.com/english/stopper-switch.html

Title: key operated fire alarm points.
Post by: Brian Catton on September 23, 2005, 11:05:07 AM

Thanks everyone
I knew about KAC but apparently they need a separate interface box to make them work.
The stopper switch looks interesting if they are addressable. I will look into it.

A well known nationally respected fire alarm co. tell me that addressable CP were made under the Apollo protocol

Title: key operated fire alarm points.
Post by: Graeme on September 23, 2005, 02:52:17 PM

They are made for Apollo with their protocol added.XP95 or Discovery.
Their Beamsets are also made for them.They are Fire ray's with Apollo protocol.

The STI mcp will be non-addressable.

You can use these with an Addressable interface i.e Zone Monitor(ZMU) so you can have non-addressable devices on an addressable loop.Try it this way and you won't have to wait around weeks.

Title: key operated fire alarm points.
Post by: Allen Higginson on September 23, 2005, 09:12:15 PM

Never used one yet but (depending on the dimensions) you might get away with running your loop into the back box and fitting a mini switch monitor (with interrupt) in it.The keyswitch would then connect onto it with a 1K firing resistor and 20K EOL.
http://www.apollo-fire.co.uk/PDFs/PP2020%20Mini%20Switch%20Monitor%20Interrupt%20PIN.pdf

Title: key operated fire alarm points.
Post by: Graeme on September 23, 2005, 09:35:44 PM

that's a mighty fine suggestion also.

Title: key operated fire alarm points.
Post by: Allen Higginson on September 24, 2005, 03:16:55 PM

Quote from: Graeme Millar

that's a mighty fine suggestion also.

Nearly was!!The interupt switch monitor uses a standard 470/680 ohm firing resistence but still has a 20 K EOL .
The non-interupt uses the 1K firing resistor.

Title: key operated fire alarm points.
Post by: Graeme on September 24, 2005, 06:12:16 PM

It is the best option.
The zone monitor can only comply with the response time for an mcp if the control panel is programmed to recognise the alarm flag.
The switch monitor with polling interupt will do this at default and will comply with the response time needed for manual call points.
The 20k eol is not a problem and most mcp's will have a standard 470-680 ohm resistor in series with the microswitch.

The non interupt is for monitoring volt free contacts i.e from sprinkers etc.