Re: Napco P9600 Technical Question

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Wed, 18 Jan 2006 17:41:16 GMT, Clif <nonya@xxxxxxxxx> wrote in message
<05vzf.1605$rH5.362@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>:

>See below
>
>Marc F Hult wrote:
>> On Wed, 18 Jan 2006 15:58:38 GMT, Clif <nonya@xxxxxxxxx> wrote in message
>> <OAtzf.2168$vU2.1926@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>:
>>
>>> Does anyone have a Napco P9600 that they can easily look under the metal
>>> processor shield? (i.e. The cover for the memory firmware, RAM, etc.)
>>
>> Yes I do.
>>
>>> I need to know the part number and manufacturer for the RAM chip.
(Facing
>>> the controller in its mounted orientation, it would be the rectangular
>>> chip just above the firmware ROM.)
>>>
>>
>> It's ... mumble, mumble....
>>
>> Why do you need to know?
>I have a P3200 that I bought a while back and tried to upgrade it with a
>GEM-AUTOMATION kit that I bought from Smarthome.  It was advertised that
>it would work on my panel.  After discovering that it wouldn't and that
>only OLDER P3200's worked with this, I started digging.  This
>GEM-AUTOMATION kit appears to only work on P9600's now.  I also noticed
>that the specs and the board on the P9600 looks strangely similar to my
>P3200.  My guess is that the P9600 has more memory and probably nothing
>more.
>>
>> Those .600 DIP static rams can be easily 'double-decked' and because the
>> fanout of the associated circuits can handle the additional load, one
could
>> substitute the entire original chip with a new one with _its_ data by
>> disconnecting the CS on the original chip -- or make a copy of the data
on
>> the original chip
>>
>> One has to wonder what legitimate reason there would be for an anonymous,
>> first-time usenet poster to do this if (especially) s/he doesn't have
ready
>> access to the panel.
>
>Now that your wondering is over, I wonder if someone that replies this
>way will help a DIY experimenter out? :)


Unbridled optimism of this magnitude should not go unpunished ;-)

Samsung K6T1008C2E

http://www.eie.fceia.unr.edu.ar/ftp/Digital%20III/2005/Datasheets/K6T1008%20-%20128Kx8%20bit%20Low%20Power%20CMOS%20Static%20RAM.pdf

... Marc
Marc_F_Hult
www.ECOntrol.org