Please translate this diagram

[NewUser]

It's part of an installation diagram for a car alarm I bought in China a while back (fortunately before the $A plummeted against the RMB)

[jbradfor]

Switch 1 should be off (up in the picture) for electrically powered locks, on (down) for air (pneumatic) powered locks.

Switch 2 should be off for NOT automatically put into operation (?), on for automatically put into operations. [i'm assuming here this means should it automatically alarm itself?]

The other two have some words I don't know -- maybe someone else can translate?

[NewUser]

Thanks, that makes sense.

Switch 4 I've found, through trial and error, selects positive or negative alarm tripping via the door switch. Presumably some rare types of car switch the interior courtesy lights with a positive. Or maybe there are cars with the vehicle frame being positive rather than the usual negative.

So that just leaves Switch 3 :

[roddy]

3 looks like some kind of anti-theft immobiliser / cut out? One (top) is 'anti theft not kill engine', the other is 'anti-theft kill engine'

[jbradfor]

roddy, could 熄火 refer to turning out the lights (e.g. the interior overhead lights in the car), or is it only turning off the engine?

[NewUser]

The alarm's auto-arm and ignition cut-out features don't seeem to be affected by the positions of switches 2 or 3, so they're still a mystery. Not to worry though, the alarm does pretty much what I want it to.

Discovered an amusing feature it has - if the alarm is enabled while a door is open, or if returning to the car after an alarm trip and on opening the door, I get a different and loud spoken Chinese message for each, in a female voice, from the speaker. Very cute!