The following variants are available for grounding.
Variant 1:
One backplane panel and grounding of the mounting panel are on the same side.
After the backplane panel is mounted on the 19" mounting panel, the backplane panel must be grounded via the mounting panel. Screw the grounding cable on the back of the mounting panel to the backplane panel. Use the screw connection, see Grounding – ibaPADU-S-B4S.

Connect the cable to the next threaded bolt of the mounting panel. The grounding of the mounting panel is also connected to the threaded bolt.

Both grounding cables are attached to the threaded bolt as shown.

Variant 2:
One backplane panel and grounding of the mounting panel are not on the same side.
The backplane panel is mounted on the right or left side of the mounting panel, the grounding of the mounting panel is connected on the respective other side. Ground the backplane panel at the next threaded bolt of the mounting panel. The grounding of the mounting panel can then be connected at the opposite side. See figure:

Variant 3:
Two backplane panels are mounted.
Ground the two backplane panels at the next threaded bolt on the left or right. The grounding of the mounting panel must be connected to one of the threaded bolts.
Connection for grounding the 19" mounting panel

1 |
Hexagon nut/lock nut |
2 |
Hexagon nut |
3 |
Spring lock washer |
4 |
Ground wire with cable lug |
5 |
Contact washer |