Messaging Protocol for NX-8E

[Gosha]

Hi,
I have CADDX Security System - NX-8e; I am wondering if somebody can point me out documentation/spec which describes a messaging ptocol NX-8E control panel uses in interaction with Keypad or monitoring system.

The install and user guide for NX-8E only explain the programming but they don't cover a structure of messages been sent to/from a control panel.


Thanks a lot