BECKHOFF CU8880-0000 - Manual (Page 9)

Installation Instructions
CU8880-0000 7
Mounting / Unmounting
The CU8880 can be snapped onto a 35 mm mounting rail conforms to
EN 50022.
Mounting the Ethernet
Controller Just push the unit on the upper side under the rail (figure 1) and snap in
the lower side as shown below (figure 2):
Unmounting the Ethernet
Controller To release the CU8880 from the mounting rail pull down the locking clip
with a screwdriver (figure 1) and pull off the device from the rail (figure 2):