Cisco Systems 3800 Series warranty Ground lug attachment

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

17x

34x

16x

33x

15x

32x

14x

31x

13x

30x

12x

29x

18x

11x

28x

10x

27x 9x

Ext

26x

8x

25x

17

-48V

Pwr

24x

6x

GE0

23x

5x

22x

4x

10/100/

21x 3x

20x

2x

0x

Base-Tx

19x

1x

EN

18x

0x

117015

Ground lug attachment

Installing Cisco 3800 Series Routers in an Equipment Rack

OL-5969-01 15