ca670 manual arm

I installed a Code Alarm CA670 in my 2004 Mitsubishi Evo this weekend.  Every thing seems to be working as it should.  I have an external turbo timer already installed so I want to be able to use it and the alarm together.  That part is easy for me as I have programmed an auxillery chip for the turbo timer to "tell" the alarm when it turns the engine off so the alarm can then arm the system.  I know there is a turbo timer feature in this alarm, but its set to 5 minutes and mine varies based on how I drive, so it may only need to run for 10 seconds or it may need to run for 10 minutes.  Either way I want to use both.  I have that part figured out except for one minor detail

On the CA670 there is a blue wire with a red stripe that is said to be the Manual Arm wire.  The installation manual says; "This wire wil ARM the security system when a POS or NEG pulse is applied to it from an external device."

Now I assumed this meant if I just showed it ground for a second it would arm.  Well I tried grounding the wire by hand and that didn't get me anywhere.  Does it need to see a change in state from low to high or high to low or does it actually need to see some sort of waveform?  or a fixed pulse of ground-open-groun-.... for a certain amount of time?

Anyone know?  What sort of accessories out there is this wire used for? That may help.

Thanks

Well your partially correct :)

This particular alarm has a factory arm and disarm and a manual arm and disarm.  Four seperate wires.  I should have specified.  I tried ground and nothing and thats what I really wanted to use, but I did dtry jumping +12 to it when I got home today and it armed the alarm so I will just put a couple changes in my logic so it uses the +12 instead of gnd or use a relay. 

I'll definately make sure there is a momentary delay in when the power is turned off and the alarm is armed.  For some reason I forgot about that ;)

Now on to figuring out how I can leave it running via the turbo timer (external from alarm) and use the alarm keyfob to lock the doors.  It only wants to let me if I use its turbo timer.  Maybe I will allow mine to send it a signal to turn on its (ground parking brake wire) and then when its time to shutdown before 5 minutes I will send it a brake pedel signal and then arm it.....  hmmm....  sometimes I just wish my brain would shut off and I would be happy the way things are.

Thanks again!