RIGOL DG1000Z Series - Manual (Page 48)

RIGOL Chapter 1 Quick Start
1-30 DG1000Z User’s Guide
3. Fix the other fixing part on the left side of the front panel of the instrument B
using two M4 cross recessed pan head screws. Fix the connector B on the right
side of the front panel of the instrument B using two M4 cross recessed
countersunk head screws.
4. Connect the connector A and B.