In fact, the CX2300A works really fine but the user manual (Chinese to English traduction is partial ...)
I sorted out everything. Here is the results:
Option 1: "auto/manual"
If set to manual, each time you intend to use remote start, you need to perform the shutdown procedure: engine running, tach input is learned, neutral is checked, you remove the key, engine is still running, close the door, arm and the engine shutdown ==> remote start will occur. This shutdown procedure is painful.
If set to auto, the remote start will work without the need of the shutdown procedure but neutral, brake and arm state will be checked.
Option 9: "lights flash when door opened"
If set to ON, the lights flash as soon as you open a door.
If set to OFF, the lights flash only if ignition is set and a door is still opened ==> very useful
Option 15: "windows roll-up connect power"
this option is not to switch on/off the windows roll-up procedure (as I thought) but to tell to the unit to power up or not the ACC/IGN power before triggering the windows roll-up signal. it may very useful for cars not having permanent power in the doors ...
It means the windows roll-up is systematic as soon as you enter arm state.
When put to ON, I noticed the factory rearm signal is delayed (I use it to trigger my folding mirrors unit).
in my case, it's OFF and do the following trick to keep your windows open (in summer !):
windows opened, keep the passenger door opened and arm, the doors will lock, arm state is not yet entered and windows roll-up signal is not asserted. Then, close the door (already locked ... don't let your keys in the car !!), arm state is now entered and windows stay opened ...
Option 16: "AUX output"
whatever the duration you set 0.8s or 15s or latched, be aware the AUX icon will be displayed more than 10s on the LCD each time you use AUX
What I like in the CX2300 and that other alarms don't have:
_cheap price
_small unit
_features can be programmed from the remote and are comprehensive b/c choices are displayed on the LCD
_both vibrator and beep are supported in the remote
_temperature display even if not accurate (variable depending on the unit you get ...)
_remote battery lasts > 3months (eneloop sanyo AAA battery)
_battery status is shown
_remote car state check
_good range (even if I put a RF amplifier to get higher range in reception, > 5kms in my case)
_trunk remote opening is not a combination of key presses, only one long key press
_factory rearm/disarm outputs can be re-used to fold back your mirrors (with external unit in my case)
_no tach learning procedure if you use manual option
What I don't like or could be enhanced:
_lcd icons design is poor (small icons show the different states: doors, 3D sensor, ...), need to guess what they wanted to mean
_remote start doesn't check enough inputs, I mean gearbox neutral, parking brake and brake pedal states
_clock on the lcd shifts each time you set some options
_horn beep when arming is too much present, too much loud, too much long, obliged to switch off this option
_no confirmation beep/vibrator on the remote when arming/disarming
_turbo mode cannot be canceled with brake pedal when active (but remote start can)
_windows roll-up always on if connected ...
_optional (motion) sensor has one trigger input only, no pre-warning input (wheareas the integrated 3D shock sensor pre-warns depending on shock level)
_bad user manual, you need to guess what they try to mean, confusing ...
_obliged to perform shutdown procedure when set to manual car
200sx, 300zx, S4.
Carvox CX2300a mods:
_RF range extended (>5kms)
_interfaced with GPS106B tracker
_hacked