Drucktaster/-schalter im EFIS und FCU

[FlyTom66]

Die genaue Funktion der Drehimpulsgeber und der Kippschalter im EFIS und FCU sind mir bekannt. Jedoch welche Drucktaster/-schalter benötige ich für :
FD, ILS, CSTR, WPT, VOR.D, NDB, ARPT, LOC, AP1, A/THR, AP2, EXPED und APPR ?
Sind diese Drucktaster/-schalter mit AUS / (EIN) oder mit AUS / EIN ?

Bsp.: C***** mit 701075 oder 701076

Gruß
TomFly66

[bwr014]

ON/OFF

gr.
Frans M

[ralfan]

Frans,

are you sure, that these knobs are all ON/OFF ???

In my opinion, these are OFF/(ON) types and the software toggles between ON and OFF.

What is right?


Thanks for an answer.

Regards

Ralf

[bwr014]

Hi Ralf

Yes the switches we use from FDS with the led already inside it switch in that way when you push it...

So you right in that it is ON / ON/OFF based on what the software see.

Not sure if poster of question also use FDS switches or that he use something else. I think both way works ON/OFF or ON/ push and it is OFF ( software change it from 0 to 1 or from 1 to 0 again)

gr.

Frans M

[ralfan]

Frans,

only that we speak the same language:

an ON/OFF/ON is a 3 position switch
an ON/OFF/(ON) is a 3 position switch, where 1 position is springloaded, that means the switch is going back to OFF when you release your hand
an (ON)/OFF/(ON) is a 3 position switch, where 2 positions are springloaded and going automatically back to OFF when you release the switch.

For the buttons in our case we are using 2 position buttons. OFF/ON when the button has to positions.
OFF/(ON) when we have a typical button with a spring.

I don´t know if this is easy to understand?

FDS delievered 2 types of buttons. The OFF/(ON) type and some OFF/ON where I don´t know to use them.

Can you answer this?

Regards

Ralf

[bwr014]

Yes i understand what you mean.

FDS have 3 kind of switches in that way:

1) the ones we use in our efis selectpanel this is a combination switch with illuminated led inside. This switch can be pushed but will not stay "down" so it only will give a short signal.

2) the K1 switch same as above but then used for our overhead where in our discussion before they also only will be possible to push but not stay "down"

3) the k1 switch that will stay "down" when you push it and will come up ones you push it again..

In all 3 cases it is the software what will decide how the switch will have to behave.. basic on startup they all OFF and when pushed they switch to ON or you switch out a function like a fault in your overhead logic.

Version 3 can be down and in this case the software also can see it as down what means that the function on startup could be ON or OFF depend on the function of the switch. This switch also give a visual look because it would be lower when pushed then for instance version 2.. but because it is almost not visual seen from above AND because the software and the function of the switch will already tell you what the status is of this switch it doesnt matter if you have it pushed "down" or "up" guess this is the advance of a A320 compair to a B737 where they still use the toggle switch while A320 show on each switch a burning text when a function is active or not.

And in the software you always can turn arround the function of the switch so ON could be OFF or OFF could be ON...

Hope this make any sense

gr.

Frans M