Galaxy Dimension variants

There are four models available:

Galaxy Dimension: 48C,  96C,  264C,  520C.  The number is the maximum number of zones that control panel can accept and the C on the end of the code means there is a built in communicator for remote signalling. The panels do not have that number of zones built into them, this is achievable by adding expander modules called RIO's (Remote Input / Output).

The RIO expander adds 8-zones to the alarm system, it can be fitted a long way from the actual panel and has just one cable between RIO and the panel.  This means that huge bunches of cable need not all go back to the location of the control panel. 

There is a very fancy touch screen keypad available to use with the Dimension control panels, but this is not compulsory.  The touch keypad costs a lot more money than the conventional keypad and both types work with the system.  So there is no need to buy the touch keypad if you don't want to - but it does look fantastic and very modern, and is really nice and easy to use too.