Re: And Now for something completely different!!!

[ABLE1 <somebody@xxxxxxxxxxx>]

On 11/2/2022 9:06 PM, Jim Davis wrote:
> On Tuesday, November 1, 2022 at 9:06:33 PM UTC-4, ABLE1 wrote:
>> On 11/1/2022 4:11 PM, Bob La Londe wrote:
>>> On 11/1/2022 1:02 PM, ABLE1 wrote:
>>>> On 11/1/2022 3:18 PM, Bob La Londe wrote:
>>>>> On 11/1/2022 11:45 AM, ABLE1 wrote:
>>>>>> Hey guys!!
>>>>>>
>>>>>> I am having challenge and thought I would reach out to
>>>>>> get some quality input!!
>>>>>>
>>>>>> I am in need of a small programmable keypad that would have
>>>>>> a single N/C relay contact that is Weather resistant.
>>>>>>
>>>>>> That is Battery Operated.
>>>>>>
>>>>>> I know! I know!! The Battery Operated part is the tough part.
>>>>>>
>>>>>> But............... maybe someone could give a hint of who
>>>>>> might make something close.
>>>>>>
>>>>>> Any thoughts??
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Les
>>>>>
>>>>> IEI used to have some decent weatheproof keypads that are 12V, but
>>>>> like you said... battery.  I can see why you might not be able to
>>>>> share more of the application, but an idea of estimated usage, idle
>>>>> current, active current, any secondary current, cycle frequency...
>>>>> might give you some quidelines as to whether you could get away with
>>>>> something like a gell in a box. Or a gell in a box with a solar charger.
>>>>>
>>>>> I once ran an entire alarm panel with cellular off a 60 watt panel
>>>>> using a small rack of gells and an inverter.  Several of them
>>>>> actually in unpowered model homes.  Of course I have the privilege of
>>>>> living in a place where a restaurant once advertised free meals any
>>>>> day the sun doesn't shine.  They paid off once, but technically they
>>>>> didn't have to.   The sun broke through just before sunset.
>>>>>
>>>>>
>>>>
>>>> Hi Bob,
>>>>
>>>> This is for a AirB&B to give access to the building.  There is no
>>>> available power source.  And in trying to get wire there would need
>>>> at least 2 Quarter Sticks of Dynamite.   The usage would be maybe
>>>> four time a day when occupied.  A GelCell would work but then the box
>>>> would need to be of an undesirable size.  I was thinking if there was
>>>> a keypad maybe a 2x4 box with a 3 Volt Lithium would last maybe
>>>> 6 months could do the job.
>>>>
>>>> There are a lot of factors to make this work.  But, if only someone
>>>> would have said 2 years ago to plan for a AirB&B for this unit life
>>>> would be so MUCH easier.  For now the plan is to use a key in a lock
>>>> box on the door knob.
>>>>
>>>> I had looked at IEI Linear before but there does not seem to be one
>>>> that fits the bill.
>>>>
>>>> Thanks for the almost hint!!
>>>>
>>>> Les
>>>>
>>>>
>>>>
>>>
>>>
>>> How about a regular digital entry lock.  You can buy one at Home Depot
>>> or Amazon.  Maybe WalMart and certainly eBay.  I bet even ADI has one.
>>> Tri-Ed might have one, but they would send you something else, say it
>>> was your fault, and then refuse to sell to you again if you complain.
>>>
>>> Funny.  I just saw Anixter owns Tri-Ed now.  I wonder if they are upto
>>> Anixter service levels now, or if Tri-Ed dragged Anixter down to their
>>> level.  I used to buy some government spec data products from Anixter.
>> Yes, one of those digital entry locks would work if it wasn't for the
>> new panic hardware installed on the door. Well maybe, I am not going
>> to get involved with trying to find something that will match up
>> properly. I actually have a Aiphone Apartment access GT series that is
>> connected to a door strike. The problem is that when I wired it there
>> was no pathway for pulling additional wires. So the 24vdc digital
>> wire that does all the power and communication for the call stations
>> can't be used to power anything else.
>>
>> My thinking is that if I had a battery operated keypad w/ relay I could
>> connect in parallel to the Aiphone relay to the strike.
>>
>> Maybe I need to figure out a way to get a clean 12vdc wire to the
>> keypad. It is finding a good 120vac source that can be used for a
>> easily/properly 12vdc wall wart installed.
>>
>> I need to spend more time on site to think this out.
>>
>> Later,
>>
>> Les
>
> Just saying but wont any kind of out door accessory keypad expose the building to unauthorized entry to anyone with just a little bit of knowledge about relays etc ?
>
> Don't you think?
>
> You'd need a secure box to mount it on and rugged mounting for the box and security screws on the keypad, metal pipe or otherwise protected wires to solar or other power protected too.  $ $ $
>
> Sounds like a source of "worms" to me.

I know Jim!!  But, the customer wants something.  There are challenges
and pit falls.  I plan on doing a lot of extra design and planning.

The door just get you inside the apartment building hallway.

If someone wanted to be stupid they could just press one of the
apartment call buttons and then tell a story to convince the apartment
dweller to press the lock button on the tenant station.

Yes, conduit, rugged mounting, security screws!!!

Thanks for the input and have a better day!!

Les