A Rack Mount Kit is supplied with the E80B for mounting the product in a 19-inch rack. Included with the kit is the following:
2 x side brackets.
6 x bracket screws. 3 for securing one bracket to one side of the E80B.
The kit is attached to the sides of the E80B unit prior to mounting in the rack. There are pre-drilled holes in each bracket and in the side of the E80B as shown below.

Align the bracket screw holes with the pre-drilled holes on the side of the E80B. Then, fit and tighten the supplied screws into the holes with a suitable screwdriver as shown below.

Repeat this for each side of the E80B so the brackets are mounted as shown below.

The E80B is now ready to be rack mounted. No rear support is required.