Cisco 3725 Hardware Installation Guide - Page 55

Chapter 3 Installing the Router Installing the Chassis Ground Connection • 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. For chassis grounding instruction, see one of the following sections: • Cisco 3725 Router Ground Connection, page 3-9 • Cisco 3745 Router Ground Connection, page 3-10 Cisco 3725 Router Ground Connection To install the ground connection for a Cisco 3725 router, perform the following steps: Step 1 Step 2 Step 3 Step 4 Strip one end of the ground wire to the length required for the ground lug or terminal. • For the NEBS ground lug-approximately 0.75 inch (20 mm) • For user-provided ring terminal-as required Crimp the ground wire to the ground lug or ring terminal, using a crimp tool of the appropriate size. Attach the ground lug or ring terminal to the chassis as shown in Figure 3-12 or Figure 3-13. For a ground lug, use the two screws with captive locking washers provided. For a ring terminal, use one of the screws provided. Use a number 2 Phillips screwdriver, and tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m). Connect the other end of the ground wire to a grounding point at your site. Figure 3-12 NEBS-Compliant Ground Wire Connection on a Cisco 3725 Router Chassis 2 NM-HDV BAN 1 2 NM-HDV AL 1 BANK 4 BANK 3 BANK 2 VWIC 2MFT-E1 BANK 1 BANK 0 CTRLR E2 LP CD CTRLR E1 SEE IBMNEASFNTOAURLAELLATION V0 EN SEE MANUAL BEFORE INSTALLATION DSU 56K Ground lug TD RD LP AL CD TD RD LP AL CD SEE MANUAL BEFORE INSTALLATION DSU 56K SEE MANUAL BEFORE INSTALLATION OL-2180-08 Cisco 3700 Series Routers Hardware Installation Guide 3-9