What is the GTO clamping system on the VT 12030-120?

The GTO clamping system is exclusive to the VT 12030D-120 and VT 12030-120 units. This system allows you to run the exact length of GTO to your sign with no splices while the most common GTO 15 will work in the system. The length of the GTO should not exceed the length of 4 feet per homerun lead; therefore, take care as to how you route the GTO homerun leads.