Ground the Chassis
Statement 1024
—
Ground Conductor
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
—
Installing or Replacing the Unit
When installing or replacing the unit, the ground connection must always be made first and disconnected
last.
Warning
Statement 1025
—
Use Copper Conductors Only
Use copper conductors only.
Warning
Grounding the chassis is required, even if the rack is already grounded. A grounding pad with two threaded
M4 holes is provided on the chassis for attaching a grounding lug. 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
Step 1
Use a wire-stripping tool to remove approximately 0.75 inches (19 mm) of the covering from the end of the grounding
cable.
Step 2
Insert the stripped end of the grounding cable into the open end of the grounding lug.
Step 3
Use the crimping tool to secure the grounding cable in the grounding lug.
Step 4
Remove the adhesive label from the grounding pad on the chassis.
Step 5
Place the grounding lug against the grounding pad so that there is solid metal-to-metal contact, and insert the two M4
screws with washers through the holes in the grounding lug and into the grounding pad.
Step 6
Make sure that the lug and cable do not interfere with other equipment.
Step 7
Prepare the other end of the grounding cable and connect it to an appropriate grounding point in your site to ensure
adequate earth ground.
Cisco Firepower 4100 Series Hardware Installation Guide
49
Mount and Connect
Ground the Chassis
