JVL MIS17 Series User Manual page 316

13.1 Step motor controllers (SMCxx)
13.1.2 SMC85 Connector overview
The connections to the various connectors of the SMC85 PCB board is shown below.
Note that GND and P- are connected together internally.
316 JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
Only SMC85