NEBS Supplemental Unit Bonding and Grounding Guidelines
Although the router chassis requires a safety earth ground connection as part of the power cabling to power
modules, you must permanently connect the central office ground system or interior equipment grounding
system to one of the three supplemental bonding and grounding connections on the back or side of the router
chassis to meet Network Equipment Building System (NEBS) requirements as well as safety compliance
requirements. These grounding points are referred to as the NEBS bonding and grounding points.
These bonding and grounding connections satisfy the Telcordia NEBS requirements for supplemental
bonding and grounding connections. 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 or DC power
modules.
Note
Figure 56: NEBS Bonding and Grounding Points on the Cisco ASR 9006 Router Chassis
NEBS grounding point on left side of
the chassis
3NEBS grounding point on rear of the
chassis
2NEBS grounding point on right side
of the chassis
1
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
54
Preparing for Installation
Site Requirement Guidelines
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