Re: Alarm system transformer + power supply (would both go bad atonce?)

[The Daring Dufas <the-daring-dufas@xxxxxxxxxxxxxxxxx>]

On 12/4/2013 10:58 AM, Michael A. Terrell wrote:
>
> The Daring Dufas wrote:
>>
>> On 12/1/2013 6:46 PM, Michael A. Terrell wrote:
>>>
>>> The Daring Dufas wrote:
>>>>
>>>> You could probably purchase a DSC board and keypad to install in your
>>>> existing can, reusing the same wiring, switches and detectors. I think
>>>> there are several places on the web including eBay where you might get
>>>> one. I purchased a number of main boards only to install inside
>>>> generator transfer switches to monitor the generators. DSC makes pretty
>>>> good stuff. ^_^
>>>>
>>>> http://www.dsc.com/
>>>
>>>
>>>      DO you remember brands like MOOSE and FBI?
>>>
>>
>> Yep, I installed a lot of them and if you didn't have a tamper switch on
>> the keypad, you could pop the cover and disarm the system without any
>> special tools. It was almost as easy as disarming a n/o key switch
>> that lacked a tamper. ^_^
>
>
>     The real fun was getting the phone company to install a properly
> wired RJ31X.  It was a couple years before they were available through
> the alarm suppliers, so it cost the customer $150 to have Ohio Bell
> install it wrong.  Then we would have to rewire it so the dialer could
> seize the line.  Some ID10Ts didn't even wire the switch, they simply
> daisy chained the wires so the phones would work. Another problem was
> the early battery chargers were set too high and would destroy the Gel
> Cell in a year.
>

Back in the 70's I made my own circuit boards on the kitchen table so I
could build my own solid state alarm controls. Most of what was around
was the old reverse polarity on a pair going directly to a central
station like the police/fire department. ^_^

TDD