Cisco Router 7204 Installation And Configuration Manual page 74

Providing a Chassis Ground Connection for the Router Chassis
( D R A F T L A B E L ) A L P H A D R A F T - C I S C O C O N F I D E N T I A L
Older Cisco 7204 router chassis do not have the grounding receptacles.
Note
To ensure the chassis grounding connection that you provide is adequate, you will need the following
parts and tools:
1 grounding lug—Must have two number-10 screw holes that have a 0.63-inch (16.002-mm) spacing
•
between them, and a wire receptacle large enough to accept a 6-AWG multistrand, copper wire. (See
Figure
provide this type of grounding lug.
• 2 Phillips-head machine screws with locking washers—M5 (metric), 0.031-inch (0.8-mm) pitch,
0.315-inch (8-mm) length. These screws are not available from Cisco Systems; they are available
from any commercial hardware vendor.
• 1 grounding wire—6 AWG, 0.162-inch (4.115-mm) diameter, with approximately 0.108-inch
(2.743-mm) insulation, for a total wire diameter of approximately 0.27 inches (6.858 mm). The
wire's length is dependent on your router location and site environment. This wire is not available
from Cisco Systems; it is available from any commercial cable vendor.
• Number 2 Phillips screwdriver.
• Crimping tool large enough to accommodate the diameter of the wire receptacle on your grounding
lug.
• Wire stripping tool.
Use the following procedure to attach the grounding lug to the chassis grounding receptacles on your
router chassis:
Figure 3-11 Attaching a Grounding Lug to the Chassis Grounding Receptacles
Screws
Grounding lug
Cisco 7204 Installation and Configuration Guide
3-12
3-11.) This grounding lug is not available from Cisco Systems; electrical-connector vendors
Chassis
grounding
receptacles
Wire
Chapter 3 Installing the Cisco 7204
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