HP MSR2000 Series Manual page 19

Figure 14 Attaching the rear mounting brackets (router depth smaller than rack depth)
Attach the front mounting brackets to the chassis and fasten the screws.
6.
Attach load-bearing screws to the rear of the chassis.
7.
Figure 15 Attaching the front mounting brackets and load-bearing screws to the MSR3012/3024
Figure 16 Attaching the front mounting brackets and load-bearing screws to the MSR3044
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