Ph2 IR central locking conversion to RF

[cully]

for a long time now i have wanted my alarm to arm when i lock the doors with the new RF fobs and to be able to disarm it too

so today i have been out and solved the last piece of the Puzzel

on investigation and a lot of pobe ing of wires i found that the alarm was armed by
short 0v pulses on wires
8618 (arm wire)
8617 (disarm wire)

realising the door lock control is done on 0v pulses too
6251-6252 (Lock wire)
6231-6232 (Unlock wire)

i tryed linking the
arm wire to the lock wire
disarm wire to the unlock wire

this half worked
i could Arm the sytem ok but as soon as i disarmed the system the alarm would sound!

head scratch time.....

i found the disarm pulse was too long at 0v
so now to work out how to shorten a long 0v pulse

my answer to this was to install a capacitor which worked!

so now i have an IR lock/alarm system that works as std
but i also have an rf lock/alarm sysem that works as std too

Happy bunny

picture of the wire connectons at the central locking box

[attachment=12592]