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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Technical Advice => Topic started by: youngsy01 on August 12, 2009, 06:28:04 PM

Title: connecting 2 conventional systems radio
Post by: youngsy01 on August 12, 2009, 06:28:04 PM
hey guys,

one of our customers has asked us to link up 2 conventional panels in seperate buildings owned by the same company on the same site! (bit of a mouthful)

No way of getting a cable across and have asked if we can do it radio, they dont fancy digging up the car park. Something i have never done, i would appreciate anybodys input.

I explained there is a strong possibility it wont comply, they accept that.

thanks!!!!
Title: Re: connecting 2 conventional systems radio
Post by: David Rooney on August 12, 2009, 06:56:24 PM
If you want "one way or two way comms" between the panels you can go to EMS (Herne Bay) and buy their 7703 contact transmitters/receivers.

Not cheap, but it does work and the radio transmission is "supervised" so a fault output can be generated to indicate on the CIE if the transmission is lost.
Title: Re: connecting 2 conventional systems radio
Post by: Wiz on August 20, 2009, 08:09:25 PM
Where you have two standalone fire alarm systems that just need to get a signal to each for just pure system management purposes then the link doesn't, in my opinion, have the monitoring integrity of BS5839-1 monitoring.

In this case, Scantronic manufacture a range of transmitters and receivers that will do the job you require. A transmitter and receiver, standard aerials and 12V dc power supplies to run them (if 12v dc is not otherwise available) will cost about £200.

These also have a supervisory monitoring signal facility, if required.
Title: Re: connecting 2 conventional systems radio
Post by: Allen Higginson on August 20, 2009, 08:18:46 PM
Where you have two standalone fire alarm systems that just need to get a signal to each for just pure system management purposes then the link doesn't, in my opinion, have the monitoring integrity of BS5839-1 monitoring.

In this case, Scantronic manufacture a range of transmitters and receivers that will do the job you require. A transmitter and receiver, standard aerials and 12V dc power supplies to run them (if 12v dc is not otherwise available) will cost about £200.

These also have a supervisory monitoring signal facility, if required.
Would have to agree that this would be the most practicle solution - we have used this in a housing scheme with 6 units of flats set around an old converted listed house (where the scheme co-ordinator lived).All the units had their own individual fire alarm system and these signalled to a receiver unit in the SC's flat via the Scantronic system for info purposes only.