In most cases, code format is GCS-Djn, where j corresponds to a jaw type (serrated, smooth, diamond). Also other jaw types are available.
- Dx1 modules are the shortest, with a jaw movement of max. 35 mm
- Dx2 possess a jaw movement of max. 85 mm
- Dx3 possess a jaw movement of max. 35 mm
While Dx1 and Dx2 modules can be installed in 4 directions on a standard 50x50 M12 platform (0,90,180 or 270 degrees) Dx3 modules can be installed in more positions such as 15,65 and 75 degrees in addition to previously mentioned.