Re: Complicated Napco MA2600 Internals Issue

["Roland Moore" <roland@xxxxxxxxxxxx>]

Every time this has been an issue with a customer the oscope points to the
keypad runs as being the worst offender. And Napco being the worst, maybe
because most Napco keypads have the zone expander built in.

"Russell Brill" <russwbrill@xxxxxxxxxxxxx> wrote in message
news:KZLFh.7470$_73.5570@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> "Katie Wasserman" <katie10543@xxxxxxxxx> wrote in message
> news:1172612240.730476.162430@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> Jim,
>>
>> That's a great idea and I do have full access to the programming.
>>
>> Thanks!!!
>>
>> -Katie
>>
>>
>>
> Katie,
>
> If you can re-run your keypad cables, use shielded cable to minimize RF
> leakage from the databus. You may use shielded cable with Napco,
> Honeywell, and Bosch's data loops and keypad data cables. Consult the
> ARRL's RF Handbook http://www.arrl.org/catalog/6834/ for more information.
> IMHO, you best bet is to scrap the old system and upgrade to something
> newer that won't generate as much RF Hash...
>
> 73,
> Russ/KN6SD
>