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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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Chapter 2 Preparing for Installation
Site Requirement Guidelines
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On Cisco 12006 and Cisco 12406 Routers configured for DC-input
operation, the DC PDU is equipped with two DC power connector blocks,
each with wire-connection terminals for connecting the negative lead (top
terminal), the positive lead (middle terminal), and the ground lead (bottom
terminal). This is a safety feature.
If the router is installed in a NEBS environment, we strongly recommend that you
connect the central office ground system or interior equipment grounding system
to the supplemental bonding and grounding point on the router chassis. This
grounding point consists of three threaded inserts is located on the side of the
chassis near the back of the chassis. (See
Figure 2-4
.) It is also referred to as the
NEBS bonding and grounding receptacle, and is intended to satisfy the Telcordia
NEBS requirements for supplemental bonding and grounding connections.
Figure 2-4
Supplemental Bonding and Grounding Port for NEBS
Compliance
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