Hi all,

I've just installed my new scantronic 9752 system with texecom odessey 3e sab.

In my previous system (scanny 9651) the three ouputs could be used for a number of things and were called "pull down type" that "provide negative applied control signals".

However, in my new system two of the outputs are "voltage free relay contacts", with having the third output the standard pull down type.

The problem I'm having is that I want both the siren and strobe to work in the sab, so I need to use two outputs, but whatever I do I cannot get the siren or strobe to work with the "negative applied control signals". They will only work with the third output which is the standard pull down type.

Anyone got any ideas?

Many Thanks, James

Hi all,

I've just installed my new scantronic 9752 system with texecom odessey 3e sab.

In my previous system (scanny 9651) the three ouputs could be used for a number of things and were called "pull down type" that "provide negative applied control signals".

However, in my new system two of the outputs are "voltage free relay contacts", with having the third output the standard pull down type.

The problem I'm having is that I want both the siren and strobe to work in the sab, so I need to use two outputs, but whatever I do I cannot get the siren or strobe to work with the "negative applied control signals". They will only work with the third output which is the standard pull down type.

Anyone got any ideas?

Many Thanks, James

run a neg thru the relay

neg to common of relay, bell or what evever trigger to normally open side of relay

A voltage free relay requires a "common" and feeds it to normally open or normally closed output.

So to activate a strobe or sounder (- volts) you will need to connect - volts to the common and the link to the - volt on the strobe or sounder should be connected to the normally open (n/o) output of the relay.

When the alarm trips the relay goes from normally open to closed, makes the connection to - volts and powers the strobe or sounder.

Too slow again

A voltage free relay requires a "common" and feeds it to normally open or normally closed output.

So to activate a strobe or sounder (- volts) you will need to connect - volts to the common and the link to the - volt on the strobe or sounder should be connected to the normally open (n/o) output of the relay.

When the alarm trips the relay goes from normally open to closed, makes the connection to - volts and powers the strobe or sounder.

Too slow again

hehe

Wow thanks for all your replies! I wasn't expecting any replies so soon!

Whilst being competant enough to install the alarm and use things like fsl wiring etc this has gone over my head.

Could you tell me exactly what links I need to put in and where?!

James

from minus volts (neg terminal) to middle pin of relay(marked common or C), them trigger to bell or strobe in the terminal marked NO

Whilst being competant enough to install the alarm and use things like fsl wiring etc this has gone over my head.

At the risk of offending someone else, a relay is the fundamental basic's of an alarm......

At the risk of offending someone else, a relay is the fundamental basic's of an alarm......

rude much?

hes asking the question because he doesnt know the answer.

this is why people dont wana come here anymore

At the risk of offending someone else, a relay is the fundamental basic's of an alarm......

Whilst being competant enough to install the alarm and use things like fsl wiring etc this has gone over my head.

He doesn't want to know basic principles, just how to do it.

whoops...

just pointing out that a relay is maybe the most basic thing to understand nothing more complex than a light switch??

as for needing to know the basic principles, maybe he'd like to know?