(not all such connectors are coax)
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Some really nice and useful information on this web site. Also I conceive the style and design holds superb features.


==What is low voltage==
== AC voltage safety  ==


*[[Electricity basics]]
AC electricity with a voltage less than 50 V (RMS) is called '''Extra Low Voltage'''. This voltage is unlikely (but NOT guaranteed) to give a human being a dangerous electric shock.


Other Names for "low voltage"
==What is low voltage?==
*Battery voltage
*Battery power


==What is AC-voltage==
*[[Electricity basics]]<!-- Add content? -->
*[[Electricity safety basics]]<!-- Add content? -->


AC-voltage is voltage without a Plus and Min
Other names for low voltage:
*Shock free power or voltage


AC-voltage symbol [[Image:AC-voltage.PNG]]
==What is DC voltage?==


Other Names for "AC-voltage"
DC voltage is voltage that has a Plus and Minus terminal.


*Current power
DC voltage symbol: [[Image:plus min power.PNG|50px]]
*


== AC-voltage safety ==
Other names for DC voltage:


Voltage under the 24 volt does not give dangerous electric shock
*DC power or voltage
*Battery type of power or voltage  (the chemistry arrangements in batteries are necessarily DC)
*Plus-minus power or voltage


==What is DC-voltage==  
==Electric DC polarity: plus and minus == <!-- Clarify the meaning of this heading. -->


DC-voltage haves a Plus and Min.
[[Image:markt plus wire.PNG|thumb|Electricity basics: Marked plus wire|150px]]


DC-voltage symbol [[Image:DC-voltage.PNG]]
For most kinds of devices it is important to have the right voltage and polarity.
Wrong voltage or polarity can destroy a device


Other Names for "DC-voltage"
How to mark the plus or to find the plus pole:


 
*Red is always plus. (This is a long established convention, but is not always observed.  Check with a voltmeter.)
*DC power
*Battery power or voltage
 
==Electric DC polarity PLUS and MIN ==
 
[[Image:markt plus wire.PNG|thumb|Electricity basics: Marked plus wire|300px]]
 
----------------------
 
Markt plus
 
*red is always plus.
      
      
*painted line on the plus wire, no line on the min.  
*Painted line on the plus wire, no painted line on the min.  
      
      
*Plus wire is square, round wire is min    
*Square wire is plus, round wire is minus.    
      
      
*sharp edge is plus, round wire is min    
*Sharp edge is plus, round wire is minus. <!-- Did you mean smooth edge? -->    
      
      
*knot is plus, no knot is min    
*Knot is plus, no knot is minus.    
      
      
*mark on the plus wire and so on, the plus wire is special or not normal than a normal wire.  
*Mark on the plus wire, the plus wire is special.    
    
    
*and so on, the plus wire is special or not normal than a normal wire.    
*and so on, the plus wire is special or not normal than a normal wire. <!-- Repeat intentional? -->   
 






Connectors must be in good working order, and properly set up, to save your electric devices and reduce the chance of fire or other bad outcome:


These must be in good working order to save your electric material:
*The voltage.  Connectors and wires have limits which should never be exceeded.


*The voltage
*The amperage. Connectors and wires have limits which should be exceeded.


*The amperage
*The plus and minus position.  The term commonly used is polarity, for DC circuits; AC circuits have no polarity.


*The PLUS and MIN position
*The type of power, AC or DC. Getting this wrong is likely to damage electric circuits.


*The type of power AC or DC
*The type of low voltage connector.  Mismatched connectors almost never give satisfactory results, and often are physically incompatible.


*The type of low voltage coax connector
*Protect your plug and connector against mechanical pulling force. This is commonly called strain relief, which if done properly reduced wiring damage due to vibration or twisting or ....  Unexpected separation of the connectors is generally done with a locking arrangement of some kind. 


*protect your plug and connector against mechanical puling force
*Take the time to check each of these issues.  Failure to do so may cause fire or electrocution.


*take your time to check these 6 items


----------------
[[Image:side middle connection.PNG|thumb|Side and middle electric connection|300px]]


[[Image:side middle connection.PNG|thumb|side and middle electric connection|300px]]


------------------------
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5


! sign on power output  
! sign on power output !! or this sign!! sign on power consumption!! or this sign!! harmful for output ?!! harmful for power consumer ?
! or this sign
|-


! sign on power consumption
|[[Image:inside MIN outside PLUS.PNG|100px]]||[[Image:outside PLUS inside MIN.PNG|100px]]||[[Image:inside MIN outside PLUS.PNG|100px]]||[[Image:outside PLUS inside MIN.PNG|100px]]|| no|| no
! or this sign


! harmful for output ?
|-
! harmful for power consumer ?


|[[Image:outside MIN inside PLUS.PNG|100px]]||[[Image:inside PLUS outside MIN.PNG|100px]]||[[Image:outside MIN inside PLUS.PNG|100px]]||[[Image:inside PLUS outside MIN.PNG|100px]]|| no|| no


|-------------------------------------------
|-


![[Image:inside MIN outside PLUS.PNG|100px]]
|[[Image:inside MIN outside PLUS.PNG|100px]]||[[Image:outside PLUS inside MIN.PNG|100px]]||[[Image:outside MIN inside PLUS.PNG|100px]]||[[Image:inside PLUS outside MIN.PNG|100px]]|| no|| YES !
![[Image:outside PLUS inside MIN.PNG|100px]]


![[Image:inside MIN outside PLUS.PNG|100px]]
|-
![[Image:outside PLUS inside MIN.PNG|100px]]


! no
|[[Image:outside MIN inside PLUS.PNG|100px]]||[[Image:inside PLUS outside MIN.PNG|100px]]||[[Image:inside MIN outside PLUS.PNG|100px]]||[[Image:outside PLUS inside MIN.PNG|100px]]|| no|| YES !
! no


|---------------------------------------------
|-


![[Image:outside MIN inside PLUS.PNG|100px]]
|[[Image:plus min power.PNG|50px]]|| DC||[[Image:NO plus min power.PNG|50px]]|| AC || no|| YES !
![[Image:inside PLUS outside MIN.PNG|100px]]


![[Image:outside MIN inside PLUS.PNG|100px]]
|-
![[Image:inside PLUS outside MIN.PNG|100px]]


! no
|[[Image:NO plus min power.PNG|50px]]||AC||[[Image:plus min power.PNG|50px]]|| DC || no|| YES !
! no


|-----------------------------------------
|-
 
![[Image:inside MIN outside PLUS.PNG|100px]]
![[Image:outside PLUS inside MIN.PNG|100px]]
 
![[Image:outside MIN inside PLUS.PNG|100px]]
![[Image:inside PLUS outside MIN.PNG|100px]]
 
! no
! YES !
 
|---------------------------------------
 
![[Image:outside MIN inside PLUS.PNG|100px]]
![[Image:inside PLUS outside MIN.PNG|100px]]
 
![[Image:inside MIN outside PLUS.PNG|100px]]
![[Image:outside PLUS inside MIN.PNG|100px]]
 
! no
! YES !
 
|---------------------------------------------
 
![[Image:plus min power.PNG|50px]]
! DC
 
![[Image:NO plus min power.PNG|50px]]
 
! AC
! no
! YES !
 
|-----------------------------------------------
 
![[Image:NO plus min power.PNG|50px]]
!AC
 
![[Image:plus min power.PNG|50px]]
! DC
 
! no
! YES !
 
|----------------------------------------------


|}
|}


==electric ampere==
==Electric current ampere ==
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
 
! amp. on  
! amp. on power output  
power output  
! or this amp.
! or this amp.
 
! amp. on  
! amp. on power consumer
power consumer
! or this amp.
! or this amp.
 
! harmful  
! harmful for output ?
for output ?
! harmful for power consumer ?
! harmful for  
 
power consumer ?
|-
|-


| 500mA || =0.5A|| 500mA || =0.5A|| no|| no
| 500 mA || =0.5 A|| 500 mA || =0.5 A|| no|| no


|-
|-


| 400mA || =0.4A|| 500mA || =0.5A|| YES !|| no
| 400 mA || =0.4 A|| 500 mA || =0.5 A|| YES!*|| no


|-
|-


| 500mA || =0.5A|| 400mA || =0.4A|| no|| no
| 500 mA || =0.5 A|| 400 mA || =0.4 A|| no|| no


|}
|}


==electric voltage==
<nowiki>*</nowiki> - Depending on how your output device is made, this condition may cause the output device (usually some kind of wall plug adapter) to burn out. The better made ones will have some sort of over-current protection built in, either in the form of a thermal fuse (self resetting), or a current limiter.
 
==Electric voltage==


{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
Line 200: Line 140:
! volt consumer
! volt consumer


! harmful for output ?
! harmful for  
! harmful for power consumer ?
output ?
! harmful for  
power consumer ?


|-
|-


|| 12V|| 12V|| no|| no
|| 12 V|| 12 V|| no|| no


|-
|-


|| 9V|| 12V|| no|| does not work good
|| 9 V|| 12 V|| no|| does not work well


|-
|-


|| 3V|| 12V|| no|| does not work
|| 3 V|| 12 V|| no|| does not work


|-
|-


|| 12V|| 9V|| no|| YES !
|| 12 V|| 9 V|| no|| YES !


|-
|-
Line 223: Line 165:
|}
|}


== adapter with different connectors ==
== Adapter with different connectors ==


Protect you power supply  
Protect your power supply.


On the left power supply output in the right power receiving device
On the left is the power supply output and on the right power receiving device.




Line 233: Line 175:
.
.


[[Image:inside outside size.PNG|300px]]
[[Image:inside outside size.PNG|200px]]


Plus and min
Plus and minus


[[Image:Power_supply_with_connecting_adapters.PNG|500px]]
[[Image:Power_supply_with_connecting_adapters.PNG|500px]]
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''' Adapter connectors '''  
''' Adapter connectors '''  
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
! OUTSIDE
(mm)
! INSIDE
! INSIDE


mm
(mm)
! OUTSIDE
! Shortcut
! Plug Type


mm
(code)
! Shortcut
! type plug
! mark
! mark


|-  
|-  
|| 2,5|| 2,5|| YES!|| 2,5 mono|| =
 
|| 6.5|| 1.0|| no|| AA || =
 
|-
 
|| 6.5|| 1.75|| no|| AB || =
 
|-
 
|| 2.5|| 2.5|| YES!|| A (*) || =


|-
|-


|| 3,5|| 3,5|| YES!|| 3,5 mono|| =
|| 3.5|| 3.5|| YES!|| B (*) || =
 
|-
 
|| 3.0|| 1.0|| no|| C|| =


|-  
|-  


|| 0,75|| 2,35|| no|| S|| =
|| 5.0|| 2.1|| no|| D|| =


|-  
|-  


|| 1,40|| 3,5|| no|| H|| Nokia
|| 5.5|| 2.1|| no|| E|| =


|-  
|-  


|| 1,7|| 4,0|| no|| I|| =
|| 5.0|| 2.5|| no|| F|| =


|-  
|-  


|| 1,8|| 4,8|| no|| J|| =
|| 5.5|| 2.5|| no|| G|| =


|-  
|-  


|| 2,1|| 5,0|| no|| D|| =
|| 3.5|| 1.35|| no|| H|| =


|-  
|-  


|| 1,5|| 5,5|| no|| N|| =
|| 4.0|| 1.7|| no|| I|| =


|-  
|-  


| 2,5 || 5,5|| no|| G|| =
|| 4.75|| 1.75|| no|| J|| =


|}
|-
 
|| 5.0|| 1.5|| no|| M|| =
 
|-
 
|| 5.5|| 1.5|| no|| N|| =
 
|-
 
|| 5.5|| 5.8|| no|| P|| =


|-


|| 6.3|| 3.0|| no|| Q|| =


|-
|| 7.0|| 1.0|| no|| R|| =


|-


| 2.35 || 0.75|| no|| S|| =


|}


(*) Mono jack


=== Type A USB ===


Add a picture with positive and negative labelled (in red (5+) and black) on a female Type A USB connector.
[[image:femaleUSB.png]]




-----------------------------------------
<gallery>
Image:femaleUSB.png|Female, Type A,USB connector with pin diagram.
</gallery>


==What is electrical-short ?==
==What is an electrical short?==


Electrical short is when the plus and min are in contact with each other
An electrical short is when the plus and minus are in contact with each other.


This is harmful for the adapter or battery.  
This is harmful for the adapter or battery.  


==electrical-short with (dis)connecting device==
==Electrical short with (dis)connecting device==<!-- Writing (dis)connect indicates either connect or disconnect. Is that what you intended? If you mean just disconnect, delete the (). -->


Some smaller connectors shortcut the power supply if you (dis)connect .
Some smaller connectors shortcut the power supply if you (dis)connect .
Line 323: Line 303:
==Car cigarette lighter plug==
==Car cigarette lighter plug==


A Car cigarette lighter plug must have the plus in the middle and the min on the outside.
A car cigarette lighter plug must have the plus in the middle and the minus on the outside.


Some female Car socket in some truck have 24 volt.
Some female car sockets have 24 volts.




[[Image:Car_cigarette_lighter_DC _Plus and Min.PNG|75px]]
[[Image:Car_cigarette_lighter_DC _Plus and Min.PNG|75px]]


==See Also==
== See also ==
*[[Electricity basics]]
*[[Electricity basics]]
*[[Power and energy basics]]
*[[Power and energy basics]]
*[[Electrical wiring and switching]]
*[[Electrical wiring and switching]]
== Interwiki links ==
* [[Wikipedia:DC Power Connectors]]


[[Category:How tos]]
[[Category:How tos]]
Line 340: Line 324:


external links
external links
{{Wikipedia p|Coaxial DC Power Connectors}}

Revision as of 06:26, 3 September 2018

Template:Offline content bundle

This page or section needs work on grammar, spelling, clarity and/or layout.You can help by editing!Read more...

Some really nice and useful information on this web site. Also I conceive the style and design holds superb features.

AC voltage safety

AC electricity with a voltage less than 50 V (RMS) is called Extra Low Voltage. This voltage is unlikely (but NOT guaranteed) to give a human being a dangerous electric shock.

What is low voltage?

Other names for low voltage:

  • Shock free power or voltage

What is DC voltage?

DC voltage is voltage that has a Plus and Minus terminal.

DC voltage symbol: Plus min power.PNG

Other names for DC voltage:

  • DC power or voltage
  • Battery type of power or voltage (the chemistry arrangements in batteries are necessarily DC)
  • Plus-minus power or voltage

Electric DC polarity: plus and minus

Electricity basics: Marked plus wire

For most kinds of devices it is important to have the right voltage and polarity. Wrong voltage or polarity can destroy a device

How to mark the plus or to find the plus pole:

  • Red is always plus. (This is a long established convention, but is not always observed. Check with a voltmeter.)
  • Painted line on the plus wire, no painted line on the min.
  • Square wire is plus, round wire is minus.
  • Sharp edge is plus, round wire is minus.
  • Knot is plus, no knot is minus.
  • Mark on the plus wire, the plus wire is special.
  • and so on, the plus wire is special or not normal than a normal wire.


Connectors must be in good working order, and properly set up, to save your electric devices and reduce the chance of fire or other bad outcome:

  • The voltage. Connectors and wires have limits which should never be exceeded.
  • The amperage. Connectors and wires have limits which should be exceeded.
  • The plus and minus position. The term commonly used is polarity, for DC circuits; AC circuits have no polarity.
  • The type of power, AC or DC. Getting this wrong is likely to damage electric circuits.
  • The type of low voltage connector. Mismatched connectors almost never give satisfactory results, and often are physically incompatible.
  • Protect your plug and connector against mechanical pulling force. This is commonly called strain relief, which if done properly reduced wiring damage due to vibration or twisting or .... Unexpected separation of the connectors is generally done with a locking arrangement of some kind.
  • Take the time to check each of these issues. Failure to do so may cause fire or electrocution.


Side and middle electric connection


sign on power output or this sign sign on power consumption or this sign harmful for output ? harmful for power consumer ?
Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG no no
Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG no no
Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG no YES !
Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG no YES !
Plus min power.PNG DC NO plus min power.PNG AC no YES !
NO plus min power.PNG AC Plus min power.PNG DC no YES !

Electric current ampere

amp. on

power output

or this amp. amp. on

power consumer

or this amp. harmful

for output ?

harmful for

power consumer ?

500 mA =0.5 A 500 mA =0.5 A no no
400 mA =0.4 A 500 mA =0.5 A YES!* no
500 mA =0.5 A 400 mA =0.4 A no no

* - Depending on how your output device is made, this condition may cause the output device (usually some kind of wall plug adapter) to burn out. The better made ones will have some sort of over-current protection built in, either in the form of a thermal fuse (self resetting), or a current limiter.

Electric voltage

volt output volt consumer harmful for

output ?

harmful for

power consumer ?

12 V 12 V no no
9 V 12 V no does not work well
3 V 12 V no does not work
12 V 9 V no YES !

Adapter with different connectors

Protect your power supply.

On the left is the power supply output and on the right power receiving device.


.

Inside outside size.PNG

Plus and minus

Power supply with connecting adapters.PNG

Adapter connectors

OUTSIDE

(mm)

INSIDE

(mm)

Shortcut Plug Type

(code)

mark
6.5 1.0 no AA =
6.5 1.75 no AB =
2.5 2.5 YES! A (*) =
3.5 3.5 YES! B (*) =
3.0 1.0 no C =
5.0 2.1 no D =
5.5 2.1 no E =
5.0 2.5 no F =
5.5 2.5 no G =
3.5 1.35 no H =
4.0 1.7 no I =
4.75 1.75 no J =
5.0 1.5 no M =
5.5 1.5 no N =
5.5 5.8 no P =
6.3 3.0 no Q =
7.0 1.0 no R =
2.35 0.75 no S =

(*) Mono jack

Type A USB

Add a picture with positive and negative labelled (in red (5+) and black) on a female Type A USB connector. FemaleUSB.png


  • Female, Type A,USB connector with pin diagram.

    Female, Type A,USB connector with pin diagram.

What is an electrical short?

An electrical short is when the plus and minus are in contact with each other.

This is harmful for the adapter or battery.

Electrical short with (dis)connecting device

Some smaller connectors shortcut the power supply if you (dis)connect .

(dis)Connect the connector to the device if there is NO power on the plug.

WRONG CONNECTING DEVICE.PNG


Right

Connecting device.PNG


Car cigarette lighter plug

A car cigarette lighter plug must have the plus in the middle and the minus on the outside.

Some female car sockets have 24 volts.


Car cigarette lighter DC Plus and Min.PNG

See also

Interwiki links

external links

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