Re: Alarmnet 7835C - using main control's battery in place of on-board battery for backup

["A.J." <aj@xxxxxxxx>]

Don't not use the 7835C, get the 7845c instead. Either case, it is a good
idea to have a battery in the unit just incase there is a break in and the
main control panel is ripped off the wall, the alarmnet will at least report
trouble signal.



"Mike Cooper" <mcooper674@xxxxxxxxxxxxxxxxxxx> wrote in message
news:ZLsfe.3920$nX1.1330@xxxxxxxxxxx
> Question for anybody experienced with AlarmNet transceivers....I'm
> planning on adding an AlarmNet 7835C to my existing system and would
> prefer to have the battery backup of the main panel supply the 7835C
> instead of the 0.7 amp-hour battery that comes with the 7835C, which is
> harder to locate an identical replacement for.
>
> So, if I were to answer no to programming question 33 (Battery present?
> Y/N), what exactly does this disable - the 7835C's on-board charger,
> low-battery monitoring, or both?  Or would it also disconnect the battery
> terminals altogether so that the unit would not accept any DC current from
> those terminals during an AC outage?  Knowing if the charger still
> functions even with a no to Question 33, I assume, would dictate whether I
> need to wire a diode into the positive lead between the 7835C battery
> positive post and the Vista control's battery positive lead.  Your
> thoughts?
>
> Best regards,
>
> Mike