Yes. You must use the LabQuest 2 interface to control a line on the Digital Control Unit with a Go Direct (GDX) sensor. Physically connect the DCU, connect the Go Direct sensor through software or USB. Program the control of the DCU in the LabQuest 2 software.
LabQuest version 2.8.3 provides full connection support for Go Direct sensors via USB and BlueTooth.
TIL 2101: Digital Control Unit (DCU) Troubleshooting and FAQs