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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
Chapter1 Preparing for Installation
Site Requirement Guidelines
NEBS Supplemental Unit Bonding and Grounding Guidelines
You must permanently connect the central office ground system or interior equipment grounding system
to the supplemental bonding and grounding connection on the side of the router chassis to meet network
equipment build ing system (NEB S) requirement s as well as safety compliance requirements. These
grounding points are referred to as the NEBS bonding and grounding points.
Figure 1-22 shows the NEBS grounding locations for the CiscoASR 9001 Router.
Note These bonding and grounding connections satisfy the Telcordia NEBS requirements for supplemental
bonding and grounding connections. For an AC powered router, if you are not installing the router in a
NEBS environment, you can choose to bypass these guidelines and rely on the safety earth ground
connections to the AC power modules.
Figure1-22 NEBS Bonding and Grounding Points on the Cisco ASR 9001Rou ter
To ensure a satisfactory supplemental ground connection to the router, use these parts:
•One grounding lug, which has two M6 bolt holes with 0.625- to 0.75-inch (15.86- to 19.05-mm)
spacing between them, and a wire receptacle large enough to accept a six AWG or larger, multistrand
copper wire. For four AWG cable, use Panduit part number LCD4-14AF-L; for six AWG, use
Panduit part number LCD6-14AF-L.
•Two 10-32 round-head screws and two locking washers (nickel-plated brass is ideal).
•One grounding wire. Although we recommend at least six AWG multistrand copper wire, the wire
diameter and length depend on your router location and site environment. This cable is not available
from Cisco Systems; it is available from any commercial cable vendor.
1NEBS grounding point on side of chassis
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