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This chapter describes how to install a NEBS Level 3/ETSI kit on your Cisco 3620 or Cisco 3640 router.
This chapter contains the following sections:
Follow this procedure to attach the grounding lug to your router chassis:
Step 1 Turn OFF power to the router. However, to channel ESD voltages to ground, do not unplug the power cable. Remove all network interface cables, including telephone cables, from the rear panel.
The following warning applies to routers that use a DC power supply:
![]() | Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position. |
Step 2 Use the number 2 Phillips screwdriver to remove either of the following:
Figure 4-1 and Figure 4-2 show Cisco 3620 DC and AC power supplies, whereas Figure 4-3 and Figure 4-4 show Cisco 3640 DC and AC power supplies. The DC and AC power supplies for these router models differ in appearance, but the number and position of the mounting screws are the same.




Step 3 Attach the bracket over the power supply using the screw(s) you removed in Step 2. (See Figure 4-5 and Figure 4-6.)


Step 4 Strip one end of the 6-AWG wire to expose approximately 0.75 inch (20 mm).
Step 5 Crimp the grounding lug around the wire. (See Figure 4-7.)

Step 6 Use the number 2 Phillips screwdriver to fasten the grounding lug to the bracket on Cisco 3620 and Cisco 3640 routers. (See Figure 4-8 through Figure 4-10.)



Step 7 Connect the other end of the grounding lug wire to a grounding point at your site.
Step 1 If you have a Cisco 3620 router, apply the "Disconnect All Connections Before Opening the Cover" label to the upper part of the power supply. (See Figure 4-11.)
If you have a Cisco 3640 router, apply the "Disconnect All Connections Before Opening the Cover" label to the upper part of the power supply, and apply the supplied voltage rating label for your power supply to the lower part of the bracket. (See Figure 4-12.)


Step 2 Reinstall network cables, and turn ON power to the router.
![]() | Caution NEBS/ETSI Intrabuilding Lightning Requirement This equipment is suitable for connection to intrabuilding or nonexposed wiring or cabling only. This cabling must be shielded. |
The following warning applies to routers that use a DC power supply:
![]() | Warning After wiring the DC power supply, remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position. |
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Posted: Thu Jul 29 09:29:36 PDT 1999
Copyright 1989-1999©Cisco Systems Inc.