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Dmp Keypad

 
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Old 12-06-2019, 01:35 AM   #1
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Dmp Keypad


I was wondering if it’s okay to wire my keypad by twisting the red and green for positive and black And white for negative my wire being 22 gauge that is. Also what is the purpose of twisted pair on these. Also the 22gauge will connect to a transformer
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Old 12-06-2019, 07:37 PM   #2
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Re: Dmp Keypad


Quote:
Originally Posted by Fanunez View Post
I was wondering if itís okay to wire my keypad by twisting the red and green for positive and black And white for negative my wire being 22 gauge that is. Also what is the purpose of twisted pair on these. Also the 22 gauge will connect to a transformer

Dear Fanunez,

You list your trade as a "Security Alarm installer and cctv".
I quite amazed that you would ask such a question.
As a simple introduction would be helpful.
How long have you been installing Alarms??

Thanks for your honest answer,

Les

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Old 12-06-2019, 08:47 PM   #3
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Re: Dmp Keypad


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Quote:
Originally Posted by Fanunez View Post
I was wondering if it’s okay to wire my keypad by twisting the red and green for positive and black And white for negative my wire being 22 gauge that is. Also what is the purpose of twisted pair on these. Also the 22 gauge will connect to a transformer
You list your trade as a "Security Alarm installer and cctv".
I quite amazed that you would ask such a question.
As a simple introduction would be helpful.
How long have you been installing Alarms??

Thanks for your honest answer,

Les
Hey I have been working for 2 years and I don’t have my LEA just installing for some company under a journeyman, but my training is trash. He just Said to do twisted pair on that keypad red green positive and white black negative and I am trying to understand why.
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Old 12-07-2019, 10:40 AM   #4
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Re: Dmp Keypad


Quote:
Originally Posted by Fanunez View Post
Hey I have been working for 2 years and I donít have my LEA just installing for some company under a journeyman, but my training is trash. He just Said to do twisted pair on that keypad red green positive and white black negative and I am trying to understand why.

OK??
So if all you want to do is apply power "only" at 12vdc and do not
want to have it communicate with a main motherboard then yes,
that will most likely light the led's on the keypad. However, doubtful
anything else. DMP or any other keypad for that matter will need
data buss communication on the other 1 or 2 terminals/leads.

Just applying 12vdc is rather pointless.
Maybe you are having your chain jerked a bit.

Twisting the pairs Red/Green and White/Black together for Positive
and Negative in this sense does very little. Personally I would use
Red/White and Green/Black to pair wires. It just makes more logical
sense as to color and usage. Doing this is somewhat of a way cheating
by not using 18/2 wire. Has to do with the amperage requirements of
a circuit.

As for the stranded wire question. I assume you are asking why use
stranded wire as opposed to solid wire?? Simply put, stranded wire is
easier to work with because of flexibility. Otherwise they do the same thing.

BTW the term you used of connecting to a transformer is wrong. A
"transformer" will provide AC power not DC power. If you are
connecting to this DMP keypad you want to use a DC Adapter. It will
convert the AC source (120vac) to 12VDC. Using a "transformer" will
provide some unknown AC voltage which could smoke your keypad.

Hope this makes sense to you. Based on what I perceive is a very
limited knowledge on your part as to electrical wiring abilities and
theory, I would strongly suggest taking a course at a local Vocational
Technical (VOTECH) School on Basic Electrical and Electronics.

The knowledge gained with help you keep the smoke in the box.

Have a good weekend.

Les
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Old 12-09-2019, 07:42 AM   #5
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Re: Dmp Keypad


Dear Fanunez,

So with two days of no response to the answering your questions,
I am left with a few thoughts.

1) You already knew the answers and were just test the waters here.

2) You are embarrassed by my answers and decided not to return.

3) You went on vacation and are having fun on some beach.

4) Or many other possibilities..........................

No matter, I just feel that communication is a wonderful thing when it is used.

Please make a response no matter the reason.
Just trying to help here.

Thanks,

Les
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Last edited by ABLE1; 12-09-2019 at 07:48 AM.
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Old 12-09-2019, 11:55 AM   #6
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Re: Dmp Keypad


Quote:
Originally Posted by Fanunez View Post
Hey I have been working for 2 years and I donít have my LEA just installing for some company under a journeyman, but my training is trash. He just Said to do twisted pair on that keypad red green positive and white black negative and I am trying to understand why.
All you need to know is bumblebee christmas tree...or in your case zebra christmas tree.

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