Re: DSC 5020? 5200 power supply needed?

["J Barnes" <trishnjames@xxxxxxxxxxx>]

The catch is the battery has to be kept in good shape.  I f you let the
battery get marginal and the alarm sounds you run a chance of burning up the
aux power on the control.  DSC does not like to run at its limits.  We have
burned up several because of this. :(

I would use the seperate AUX power supply.  Or better yet dont use DSC
controls.

James




"Frank Olson" <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:SZPKf.60652$B94.60321@xxxxxxxxxxx
> James Russo wrote:
>> Hello,
>>
>> A couple of things jump out of the PC5020 installation manual at me.
>> Can come of you with more experienced school a young guy?
>>
>> For the Fire Bell/Siren output it says "700 mA Maximum", but then in the
>> text it says "current limit 3Amps". Can someone explain this one for me?
>> Can you load it with more then 700mA output?  Right now I am looking at
>> about 1.2A (or 700mA on low-current for Elk-150RT), + 210mA for ELK-SL
>> strobe, and 480mA for Elk-71 interior siren. So, total is 1.89A for
>> siren output or 1.39 in a low-current setting.
>>
>> For the AUX it says 550mA with a note saying cannot exceed 420mA for
>> 24hr standby. This is then shared between any PGM outputs and any
>> devices connected to AUX. So, with the 5500Z KP, 3 GBs, 3 motions I am
>> at about 490mA. Which is lower then the 550mA, but higher then the 24
>> hour standby limit of 420. I think this means that it will not give me
>> 24hrs of standby without power with those items connected.
>>
>> Anyone think that the PC5200 power supply module would be required on
>> this job?
>>
>> Thanks,
>>
>> -jr
>>
>
>
> You can reliably power a siren(s) drawing 1.5 to 2.0 amps for four minutes
> as long as your battery is in good shape.  You have to realize that any
> current the siren circuit needs in excess of what the power supply can
> deliver is drawn directly from the battery (that's why they only recommend
> "short periods").  As for your particular setup, adding another power
> supply is recommended because it's been my experience that what the
> manufacturer states a device draws isn't always what it actually uses
> (they vary by a few milli-amps here and there) and you're close enough to
> the max allowable.
>
> Bass has no experience installing or servicing DSC products and I doubt he
> would be able to talk to anyone at tech support because he got "nailed"
> stealing their downloading software.