Scantronic 9752/9941 remote reset question

[Spherehopper]

I recently moved into a house with existing Scantronic 9752/9941 system and have flashed it back to factory, added some new PIRs and a GSM communicator (standalone box by ControlFreq) triggered by -ve from alarm output.

 

I've set it all up and working fine (apart from the [national installer] Elmdene SAB that has a permanent tamper fault that I'm looking into). An alarm condition will SMS the phones I need it to but on my previous Texecom (Veritas and Premier), there was a RR input that I could pull down to 0v to acknowledge/silence the alarm remotely.

 

How can I do this on the 9752? I have the ENG RESET (Prog 33) ON and REDCARE RESET (Prog 23) ON but as far as I can see the Redcare/Remote Reset application of 12v on the third pin up on the communicator connector only allows a user reset inside the house.

 

Is there a way to -ve or +ve to one of the pins to do a full remote reset of the panel rather than just allowing an eng/user reset downgrade which means someone still needs to enter a code on the RKP?

 

Thanks for your help!

[al-yeti]

Can't you use a relay 

[Spherehopper]

That is an option I guess, use one of the zones programmed as a momentary keyswitch to unset and connect my GSM relay output (responds to incoming call by toggling relay). Thank you.

 

 

[Spherehopper]

Edited to add, worked a treat, thank you. Zone 8 now set as mom keyswitch, relay in GSM module working perfectly to unset/set alarm.