Re: napco 9600 stopped communicating via serial connection

["Robert L Bass" <Sales@xxxxxxxxxxxxxxxxxxxxx>]

"cmjindy" wrote:
>
> I've had a setup for about 4 years with a Napco Gemini 9600
> communicating to HomeSeer without too much trouble until recently.  I
> can no longer communicate with the panel using the RS232 kit.  The
> serial ports on the HomeSeer computer are working fine.  I've also
> tried connecting via the QuickLoader software from a second computer.
> Any ideas on how to troubleshoot the panel?  Does one component fail
> most of the time (e.g. the panel, automation chip, RS232 converter)?
> Beyond cutting the power to the panel and disconnecting the backup
> battery for a few minutes is there something else to try if the panel
> communication is locked up?
>
> I can still arm the panel from the keypads so at least the "security"
> functions seem to be working.

Chris,

Rather than power cycle the panel, try this.  In the upper right corner of the
P9600 control panel locate jumper J5.  Pull the jumper off the top two
"normal" pins.  Place the jumper on the lower two "keypad configure" pins.
This restarts the microprocessor.  It is safe to do this with the panel
running.

You tried using another PC so the problem is definitely on the Napco side of
the system.  One critical part of the Napco HA kit is the PCI-MINI.  It looks
like an ordinary DB9 serial connector but it's actually got a voltage
converter inside it.  Once in a rare while those can fail.  They're cheap to
replace -- under $21 retail.  If you want to try swapping it with a new one
contact me.  I'll send you one to try and if it solves the problem you can buy
it.  Otherwise, just return it.

If that doesn't solve the problem, you *might* need a new panel.  However, on
the off chance that the processor itself is at fault, you can try upgrading
it.  Call if you want and I'll get you a replacement chip.  As to the question
about common failure modes, Napco's panels don't usually go bad at all.  I
installed Napco systems for over 20 years and the panels rarely needed
service.

--

Regards,
Robert L Bass

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