WHY SPEND $160 FOR AN ACCESS
CONTROL UNINTERRUPTIBLE POWER SUPPLY
(UPS) WHEN YOU CAN BUILD ONE FOR LESS THAN $60
AND ALSO COMES WITH REMOTE FUNCTION? HERE IS
Picture 1: What you see above is what you
get. Manual is included which is not shown in the photo above.
It also has battery charging feature. Simply connect the two
cable shown above to a rechargeable battery
Package comes with
Power Supply Circuit Board Rated 5Amp.
AC110V-260V step down DC12V transformer.
Offered here is a
(1) new good quality
Access Control Power Supply Circuit Board Rated 5Amp for those who likes to
build their own uninterruptible power supply UPS. A typical access control
and when closed look like this
They all look complicated but is actually very simple and you can build it
Here is how. A typical access
control power supply like the one above cost over $160.
Here is a blow up photo of what a
typical UPS power supply internal parts look like:
With reference to the photo above, it
consist of only four parts.
1. The metal casing (you can get it
locally from your hardware store). Please note that you must use a metal
casing to help dissipate the heat generated from the transformer.
2. (Upper left hand corner of photo
above) An AC110V to AC12V step down transformer (if you are in the US) ; or
AC220V to AC12V step down transformer (if you are in Europe). Please note
that the item you are about to purchase already
has a built in step down transformer, so you do NOT need to buy additional
transformer. The built in step down transformer can take in AC110V to
AC260V, so this circuit board can work in any countries all over the world.
This is unlike the other two types or power supply circuit board that we also
sell as such:
which does not have a built in transformer.
3. (bottom of photo above, resembles
a black block) The rechargeable battery (this is optional, and is very useful in
the event of a blackout). This is available also from your local
electrical store or radio shack or even Wal-mart. This battery should be
rated at least 5.0AmpH to give you at least 10 hours of power supply in the
event of a blackout (this depends on how much power your electric strike
consumes, most of them is rated under 0.4AmpH). For those of you who are not worried about blackout,
you don't have to buy the battery which will further lower your cost.
The rechargeable battery should be
rated at least 5.0AmpH or preferably 7.0AmpH like the one shown in the photo
above. The battery should also be rated DC 12V.
4. (Upper right hand corner of photo
above) The access control circuit board
which you can buy from us now with this listing!
All the above can be bought and cost
less than $60 or less, depending on how and where you buy the parts! The
rechargeable battery is optional.
The circuit board supports NO
(Normally Opened) or NC (Normally Closed) rated electric strike /
It has safety fuse to prevent short
It also has battery charging feature.
Simply connect the two cable shown above to a rechargeable battery rated at
least 5.0AmpH or preferably 7.0AmpH like the one shown in the photo above.
The battery should be rated DC 12V.
Because this board is rated 5Amp, the
minimum current rating for your step down transformer should exceed 5Amp.
We strongly suggest you get one that is rated 5Amp or more.
The circuit board comes with an adjustable 0-15 seconds door open time delay.
In other words, if you set the delay at 10seconds, the door will stay unlocked
for 10 seconds.
The circuit board has remote control
feature, so that if you do not want to open a door via your door controller, you
can just press the remote controller and the door will become unlocked.
If you prefer a board that is
rated 3Amp, then click on this icon: