Grounding the Router

You must connect the router chassis to a reliable earth ground. The ground wire must be installed in accordance with local electrical safety standards.

For NEBS-compliant grounding, use size AWG 6 (13 mm2) wire and the two-hole barrel lug provided in the router accessory kit.

For NEC-compliant grounding, use size AWG 14 (2 mm2) or larger wire and an appropriate user-supplied ring terminal.

For EN/IEC 60950-compliant grounding, use size AWG 18 (1 mm2) or larger wire and an appropriate user-supplied ring terminal.

To connect the router to a reliable earth ground, follow these steps:

Step 1 Strip one end of the ground wire to the length required for the two-hole barrel lug or terminal.

For the NEBS two-hole barrel lug, approximately 0.75 in. (20 mm)

For a user-provided ring terminal, as required

Step 2 Crimp the ground wire to the two-hole barrel lug or ring terminal, using a crimping tool of the appropriate size.

Step 3 Attach the two-hole barrel lug or ring terminal to the router chassis as shown in Figure 8 , Figure 9, Figure 10, or Figure 11. For a two-hole barrel lug, use the two screws with captive locking washers provided. For a ring terminal, use one of the screws provided. Tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).

Step 4 Connect the other end of the ground wire to a suitable grounding point at your site.

Figure 8 NEBS-Compliant Two-Hole Barrel Lug Ground Connection on Cisco 3825 Router

NMD- ESW- 36 35x GE1

10/100/1

000 17x

Base-Tx

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ports

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35x

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33x

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32x

14x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31x

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30x

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29x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11x

28x

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27x 9x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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26x

8x

25x

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-48V

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24x

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GE0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23x

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10/100/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21x 3x

20x

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0x

 

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19x

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117015

Ground lug attachment

Installing Cisco 3800 Series Routers in an Equipment Rack

 

OL-5969-01

15

 

 

 

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Cisco Systems OL-5965-01 warranty Ground lug attachment

OL-5965-01 specifications

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