Hello everyone, I'm new here and have a question or 2. I did a search but didn't find the info I was looking for. I own a Federal Thunderbolt siren with all the controls and such. I'm wanting to setup a pager system to set it off. I have a amplified charger what I need to know is, Is the relays in the charger "dry" relays? The AF timer for the siren can be wired to a push button switch that when the switch is pushed it essentially connects the 2 wires connecting the terminals starting the timer/siren. Is that how the charger relays work? I need to be sure there is no power coming out of the charger going to my timer cause that would be BAD
Thank You all for any help you can provide
Min 3/4 amplified chargers
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MysteryMachine
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chartofmaryland
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Re: Min 3/4 amplified chargers
Welcome to the Board,
The Minitor 3 and 4 amplified chargers are equipped with a reed relay with a rating of 775 ma of current and are capable of driving an additional relay that will close the high voltage relay. The relay contacts are "dry" or are not associated with any voltage or control from the amplified charger. These pins will only provide you a means of continuity when the pager is alerted, and show a (N.O.) Normally Open high impedance or (N.C.) Normally Closed short when no alert condition exists. There is a common (COM) pin associated with the source voltage or ground, your choice, where the switched output will provide you the condition you need to activate the second higher capacity relay to fire the siren
Using this stepped approach you should not reach the maximum rating of your components and it should provide you with years of service similar to the service I have received in the setups I have completed just this way.
CoM
The Minitor 3 and 4 amplified chargers are equipped with a reed relay with a rating of 775 ma of current and are capable of driving an additional relay that will close the high voltage relay. The relay contacts are "dry" or are not associated with any voltage or control from the amplified charger. These pins will only provide you a means of continuity when the pager is alerted, and show a (N.O.) Normally Open high impedance or (N.C.) Normally Closed short when no alert condition exists. There is a common (COM) pin associated with the source voltage or ground, your choice, where the switched output will provide you the condition you need to activate the second higher capacity relay to fire the siren
Using this stepped approach you should not reach the maximum rating of your components and it should provide you with years of service similar to the service I have received in the setups I have completed just this way.
CoM
If the lights are out when you leave the station and then come on the second you key up, you know you have enough power.
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MysteryMachine
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Re: Min 3/4 amplified chargers
Thanks for your reply. I guess I didn't have it checked to notify me when a reply was posted, a buddy of mine that had me join here let me know to look.
Now so just so I get this right... If I come off charger pins 2 and 3 to my AF timer it will trip it when the pager fires?
Here's a pic of the timer but it sounds like you already know what one is
If you complete the circuit to Screw 7 & 5 you get Alert, 7 & 4 you get Attack, and 7 & 6 you'll get the Fire Signal. So say I want the pager to set off the fire signal I would take a wire from 7 to say pin 2 on the charger and a wire from 6 to pin 3 on the charger. When the pager goes off it will connect the 2 wires (in theory) and start the timer
Right?
Now so just so I get this right... If I come off charger pins 2 and 3 to my AF timer it will trip it when the pager fires?
Here's a pic of the timer but it sounds like you already know what one is
If you complete the circuit to Screw 7 & 5 you get Alert, 7 & 4 you get Attack, and 7 & 6 you'll get the Fire Signal. So say I want the pager to set off the fire signal I would take a wire from 7 to say pin 2 on the charger and a wire from 6 to pin 3 on the charger. When the pager goes off it will connect the 2 wires (in theory) and start the timer
Right?