H3C Technologies H3C MSR 20-2X[40] - Manual (Page 23)

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Installation process
Step1 Check the grounding and stability of the rack. Use the screws to fix the mounting brackets at both sides
of the front panel or the rear panel of the router.
Step2 Put the router in a rack tray. For MSR 20-40 routers, use dedicated ears mounted on the rear panel if no
tray is available. Depending on the actual situation, slide the router along the chassis guides to an
appropriate place.
Step3 Fasten the mounting brackets with the recess screws to fix the router in the rack horizontally and firmly.
The specifications of recess screws should satisfy the installation requirements and the surface of the
screws should be anti-rust.
Figure 9 Installing MSR 20 Router in a rack