Cisco Systems ASR 903 9 Stripping a Ground Wire, 0.5 in. 12.7 mm ± 0.02 in. 0.5 mm, Insulation

Chapter 3 Installing the Cisco ASR 903 Router

Installing the Chassis Ground Connection

To ensure that the chassis ground connection that you provide is adequate, you need the following parts and tools:

•Ratcheting torque screwdriver with Phillips head that exerts up to 15 in.-lb (1.69 N-m) of pressure for attaching the ground wire to the router

•Crimping tool as specified by the ground lug manufacturer

•18 AWG copper wire for the power cord

•6 AWG or larger copper wire for the ground wire

•Wire-stripping tools appropriate to the wire you are using

Caution Before making connections to the Cisco ASR 903 Router, ensure that you disconnect the power at the circuit breaker. Otherwise, severe injury to you or damage to the router may occur.

Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024

Warning Use copper conductors only. Statement 1025

Warning When installing the unit, the ground connection must always be made first and disconnected last. Statement 42

This unit is to be installed in a restrictive access location and must be permanently grounded to minimum 6 AWG copper ground wire.

Perform the following procedure to ground the Cisco ASR 903 Router using a 2-hole lug and the corresponding mounting point. Most carriers require a minimum 6 AWG ground connection. Verify your carrier’s requirements for the ground connection.

Step 1 If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch (12.7 mm ±0.5 mm) (Figure 3-9).

Figure 3-9 Stripping a Ground Wire

0.5 in. (12.7 mm) ± 0.02 in. (0.5 mm)

Insulation

Wire lead

60528

Step 2 Slide the open end of your 2-hole ground lug over the exposed area of the ground wire.

Cisco ASR 903 Router Hardware Installation Guide

3-6 OL-25178-04