For racks with square holes, you may need to position a 12-24 or 10-32 cage nut behind each mounting
hole in a guide rail before using a 12-24 or 10-32 screw.
Note
b) Repeat with the other guide rail on the other side of the rack.
c) Use a tape measure and level to verify that the rails are at the same height and horizontal.
Step 4
Insert the router into the rack and attach:
a) Holding the router with both hands, position the back of the router between the front posts of the rack.
b) Align the two rack-mount guides on either side of the router with the guide rails installed in the rack. Slide the
rack-mount guides onto the guide rails, and then gently slide the router all the way into the rack.
If the router does not slide easily, try realigning the rack-mount guides on the guide rails.
Note
c) Holding the chassis level, insert two screws (12-24 or 10-32, depending on the rack type) through the holes in each
of the rack-mount brackets and into the cage nuts or threaded holes in the rack-mounting rail.
d) Tighten the 10-32 screws to 20 in-lb (2.26 N.m) or tighten the 12-24 screws to 30 in-lb (3.39 N.m).
Ground the Chassis
Statement 1024
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available.
Warning
Statement 1046
When installing or replacing the unit, the ground connection must always be made first and disconnected last.
Warning
Statement 1025
Use copper conductors only.
Warning
Grounding the chassis is required, even if the rack is already grounded. A grounding pad with two threaded
holes is provided on the chassis for attaching either a grounding lug or grounding plate. The ground lug must
be NRTL-listed. In addition, a copper conductor (wires) must be used and the copper conductor must comply
with NEC code for ampacity.
Caution
When terminating the frame ground, do not use soldering lug connectors, screwless (push-in) connectors,
quick connect connectors, or other friction-fit connectors.
Caution
Hardware Installation Guide for Cisco 8100 Series Routers
19
Installing the Chassis
Ground the Chassis
