Cisco NCS 5501 Hardware Installation Manual page 34

Ground the Chassis
Grounding the chassis is required, even if the rack is already grounded. A grounding pad with two threaded
Caution
holes is provided on the chassis for attaching either a grounding lug or grounding cover 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.
When terminating the frame ground, do not use soldering lug connectors, screwless (push-in) connectors,
Caution
quick connect connectors, or other friction-fit connectors.
Step 1 Verify that the office ground cable is connected to the top of the rack and the office ground, according to local site
practice.
Step 2 Attach the ground cable:
• Cisco NCS-55A1-24H, Cisco NCS 5501, Cisco NCS 5501-SE: Attach one end of the shelf ground cable (#6 AWG
cable) to the ground point on the rear of the chassis using the specified dual-hole lug connector.
Figure 14: Cisco NCS-55A1-24H, Cisco NCS 5501, Cisco NCS 5501-SE Ground Lug
1 Grounding lug
Hardware Installation Guide for Cisco NCS 5500 Series Fixed-Port Routers
26
2 M5 x 12mm pan-head screws
Install the Chassis