Siemens SIMATIC RF166C Operating Instructions Manual page 23

Procedure
Fasten the communication module with the screws on a solid level surface. The device must
be screwed (≤ 1.2 Nm) onto the panel at both fastening points (front top and bottom).
①
Figure 4-1
SIMATIC RF166C
Operating Instructions, 03/2022, C79000-G8976-C578-02
Elongated hole: 4.5 mm width × 5.0 mm height
Installing RF166C communication module
4.2 Mounting the communications module
Mounting
23