Cisco 10720 Configuration Guide - Page 132

Connecting Power to the Router Chapter 5 Maintaining the Cisco 10720 Internet Router Connecting the DC Power Supply Note The minimum wire gauge size supported on the DC dual power supply is 17 American Wire Gauge (AWG), which has a 1.5mm wire diameter. The maximum wire gauge size supported on the DC dual power supply is 10 AWG, which has a 6mm wire diameter. To connect the DC power supply, perform the following steps: Step 1 Step 2 Step 3 Ensure that the -48V and +48V leads are disconnected from the power source. Attach an ESD-preventive wrist strap to your wrist, and to the router or to a bare metal surface. (See the "Preventing Electrostatic Discharge" section on page 2-3.) Using a wire stripper, strip approximately 0.55 inch (14 mm) from the -48V, +48V, and ground leads. (See Figure 5-8 and Figure 5-9.) Figure 5-8 Stripping the DC-Input Leads 57874 Figure 5-9 0.55 in. (14 mm) DC Lead Stripped 0.55 inch (14 mm) H8624 Step 4 Confirm that the power switch located on the front of the power supply is in the off position (O). (See Figure 5-10.) 5-10 Cisco 10720 Internet Router Installation and Configuration Guide 78-13062-10