Cisco N540-FH-CSR-SYS Install Manual page 26

Install the Device
Rack Mount
b. Position the bracket ears facing front or middle rack-mount, on the side of the chassis so that the holes
are aligned.
c. Position the bracket extension facing rear side so that the holes are aligned properly.
d. Use 8 M4 screws to attach both the brackets to the chassis.
e. Repeat steps 1b to 1d with the other rack mount bracket on the other side of the router.
Figure 26: Installing Cable Management and 19 inch Rack-Mount Brackets
Install the Device
26