Site Wiring Guidelines - Cisco 12416 Installation And Configuration Manual

Site Requirement Guidelines
Note

Site Wiring Guidelines

Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
2-24
To ensure a satisfactory supplemental ground connection to the router, use the
following parts:
These parts are not available from Cisco, but are available from commercial
vendors.
• Two grounding lugs, which have 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 6-AWG or larger, multistrand copper wire. This lug is
similar to those used for the DC-input power supply leads (see
• Two M6 hex-head nuts and locking washers (nickel-plated brass is ideal).
Two grounding wires. Although we recommend at least 6-AWG multistrand
•
copper wire, the wire diameter and length depend on your router location and
site environment.
When planning the location of the router, consider distance limitations for
signaling, electromagnetic interference (EMI), and connector compatibility. If the
wiring is run for any significant distance in an electromagnetic field, interference
can occur between the field and the signals on the wires. Poor wiring can cause:
Radio interference emanating from the wires.
•
Strong EMI, especially when caused by lightning or radio transmitters. EMI
•
can destroy the signal drivers and receivers in the router, and can even create
an electrical hazard by conducting power surges through lines and into
equipment.
To predict and remedy strong EMI, you may need to consult with experts
Note
in radio frequency interference (RFI).
Chapter 2 Preparing for Installation
Figure
OL-11495-01
2-8).