Dec 3, 2003 13:32
20 yrs ago
English term
Contact closures toggle control functions
English
Tech/Engineering
describing features of wall-mounted keypads for lighting control
- Recalls preset light levels for up to 15 scenes plus off and full on. Can also be configured for 14 scenes, off, and master raise/lower
- ***Contact closures toggle control functions***
I think it means that the keypad allows you to switch from contact closure (relay) outputs to other kind of outputs... so that it can control loads provided with contact-closure inputs and other types of loads...
am I out-of-track?
- Recalls preset light levels for up to 15 scenes plus off and full on. Can also be configured for 14 scenes, off, and master raise/lower
- ***Contact closures toggle control functions***
I think it means that the keypad allows you to switch from contact closure (relay) outputs to other kind of outputs... so that it can control loads provided with contact-closure inputs and other types of loads...
am I out-of-track?
Responses
4 +8 | COMMENT |
Tony M
![]() |
5 -1 | button pushing.. |
Gilbert Ashley
![]() |
Responses
+8
1 hr
Selected
COMMENT
I think Gilbert may be dismissing their way of expressing this rather hastily!
I believe there is a very good reason why they have chosen to express it this way!
'Toggling' in technical terms means that a thing switches back and forth alternately; in other words, here they are talking about (for example) a button push [= contact closure] switching something on, and then the next time you push THE SAME BUTTON, it switches it back off again (unlike having 2 buttons, one for 'Off' and one for 'ON', or a button that is out for 'Off' and stays in for 'On'.
This is a very common technique in electornics and related fields, and basically makes it possible to use simpler, more reliable 'buttons' (of whatever type) which only have to make a momentary contact (like doorbell, for example!) in order to activate a certain function that by definition can only be in one or the other of 2 (or more) mutually-exclusive states.
For example, a light can ONLY be EITHER on OR off; or such a 'button' can be used to step through a series of mutually-exclusive possibilities, on a menu, for example.
E-mail me privately if you want further explanation...
I believe there is a very good reason why they have chosen to express it this way!
'Toggling' in technical terms means that a thing switches back and forth alternately; in other words, here they are talking about (for example) a button push [= contact closure] switching something on, and then the next time you push THE SAME BUTTON, it switches it back off again (unlike having 2 buttons, one for 'Off' and one for 'ON', or a button that is out for 'Off' and stays in for 'On'.
This is a very common technique in electornics and related fields, and basically makes it possible to use simpler, more reliable 'buttons' (of whatever type) which only have to make a momentary contact (like doorbell, for example!) in order to activate a certain function that by definition can only be in one or the other of 2 (or more) mutually-exclusive states.
For example, a light can ONLY be EITHER on OR off; or such a 'button' can be used to step through a series of mutually-exclusive possibilities, on a menu, for example.
E-mail me privately if you want further explanation...
4 KudoZ points awarded for this answer.
Comment: "thanks a lot!!!"
-1
22 mins
button pushing..
No, sorry. I never saw such a fancy way to say that pushing the buttons make the thing work!
Contact closure simply means to turn a switch on, and toggle is pedantic for change.
This all just means that by pushing the button or buttons you can change the mode or control function. This is a great example of someone trying to hype a very common feature by shrouding it in technicalese.
Contact closure simply means to turn a switch on, and toggle is pedantic for change.
This all just means that by pushing the button or buttons you can change the mode or control function. This is a great example of someone trying to hype a very common feature by shrouding it in technicalese.
Something went wrong...