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Cisco Integrated Services Router Hardware Installation Guide
OL-27407-01
Chapter2 Installing the Router Installing the Cisco 810 ISR
Installing the Router Ground Connection
The router must be connected to a reliable earth ground. Install the ground wire in accordance with local
electrical safety standards.
For NEC-compliant grounding, use size 14 AWG (2 mm2) or larger copper wire and a ring terminal
with an inner diameter of 1/4 in. (5 to 7 mm).
For EN/IEC 60950-compliant grounding, use size 18 AWG (1 mm2) or larger copper wire.
Warning
This equipment needs to be grounded. Use a green and yellow 12 to 14 AWG ground wire to connect
the host to earth ground during normal use.
Statement 242
To install the ground connection, follow these steps:
Step1 Strip one end of the ground wire to the length required for the terminal.
Step2 Crimp the ground wire to the ring terminal using the wire crimper.
Step3 If you choose to install the power switch lock, perform Step5 to Step 7. Otherwise, perform Step 4,
Step 6 and Step 7.
Step4 Attach the ring terminal to the chassis. Use the single screw provided. Tighten the screws to a torque of
8 to 10 inch-pound (0.9 to 1.1 newton meter). (See Figure 2-29.)
Figure2-29 Chassis Ground Connection Using Ring Terminal
Step5 Install the power switch lock, see the “Installing the Power Switch Lock” section on page 2-35. Tighten
the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m). Torque the hex standoff to the same torque.
Step6 Connect the other end of the ground wire to a known reliable earth ground point at your site.
Step7 If you are using this router in a vehicle, attach the ring terminal to the chassis using one of the screws
provided and the green or green and yellow striped wire. Connect the other end of the wire to the vehicle
ground.
1Ring terminal
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