Cisco 10720 Configuration Guide - Page 133

Chapter 5 Maintaining the Cisco 10720 Internet Router Figure 5-10 Power Switch in the Off (O) Position IN OK DC OTF IN OK DC OTF Connecting Power to the Router 57872 Step 5 Locate the ground, positive, and negative terminals. (See Figure 5-10.) Caution Leave a small service loop in the ground lead. If a strain is placed on the ground, the +48V, or the -48V DC input leads causing them to pull out of the power supply, the ground power lead must be the last to disconnect from the power supply terminal. Step 6 Insert the stripped end of the ground lead all the way into the ground lead receptacle. Tighten the receptacle screw using a 1/8-inch flat blade screwdriver. (See Figure 5-11.) Note Make sure the entire stripped end of each lead is inserted all the way into its receptacle. If any exposed wire at the stripped end of a lead is visible after inserting the lead into its receptacle, remove the lead from the receptacle, use the wire stripper to cut the stripped end of the lead, and repeat Step 2 through Step 6. Figure 5-11 Tightening the DC Lead Receptacle 61369 Ground Step 7 Connect the leads in the following order: (See Figure 5-12.) 1. Ground (green wire) 2. Positive (white wire) 3. Negative (black wire) 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 5-11