The newer G series CTL-X2 controls are direct fit and form replacement for existing original Collins CTL-X2 Controls. G controls offer new design incorporating all digital architecture and LED displays which enhance reliability and extend performance. G controls include lighting bus that can be strapped for either 5 or 28 volt applications.

The original CTL-X2 controls are legacy controls with an original design almost 30 years old. As these controls age, support from Collins will be less and less. A common indicator of this decreasing support is the increase in price and decreasing availability of service parts to repair aging units.