Reverse engineer the keypad and create a 2nd 'keypad' using an arduino and mysensors and/or openHAB that can control the system as needed, keeping the existing controllors as is. It seems you need more hardware (DSC IT-100), which according to the specsheet is not compatible with It seems that there has been some work done in using an arduino to interface with DSC systems. This protocol is used for communications between DSC System components, such as the IT100, T-Link IP modules, Zone Expanders, Envisalink. Reverse engineer keypad to work as is but with the new 'contollor' DSC IT-100 (Serial) integration module was the initial interface to enable third-party applications and system to communicate with Power Series control panels. Then setting rules in open hab to arm/disarm, activate siren & strobe etc. Then using this as an example to send the info back to openhab. outputs to share location information with your DSC equipped VHF Radio. However, dual-mode DisplayPort ports are designed to. Use the existing sensors (motion and fire alarm) as basic sensors (open or closed), stepped down to 5v high to not destroy the arduino. The NMEA-0183 protocol and serial data connection do not really provide for a. The DisplayPort interface uses an LVDS signal protocol that is not compatible with DVI or HDMI. Rip out all the existing control boards and replace with Arduino Mega. I was thinking that I would like to hook it up so I can access it from home via mysensors to OPENHAB (or another controller.) I have a DSC PC2550 (8 zone and 2 fire) alarm system that came with my house.

Dsc Serial Protocol