Cisco 10720 Configuration Guide - Page 129

Chapter 5 Maintaining the Cisco 10720 Internet Router Connecting Power to the Router Connecting Power to the Router Before connecting the router power supply, read the information provided in the following sections: • Safety, page 5-7 • Tools and Equipment Required, page 5-7 • Connecting the AC Power Supply, page 5-7 • Connecting the DC Power Supply, page 5-9 Safety Warning When installing the unit, always make the ground connection first and disconnect it last. Statement 42 Warning Before performing any of the following procedures, ensure that the 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 (O) position, and tape the switch handle of the circuit breaker in the OFF (O) position. Statement 140 Tools and Equipment Required You will need the following tools and equipment to power up the router: • ESD-preventive strap • Wire stripper • Cable ties Connecting the AC Power Supply Caution Before you install, operate, or service the system, read the Regulatory Compliance and Safety Information for the Cisco 10720 Internet Router publication. This publication contains important safety information you should know before working with the system. Note We recommend that you attach each AC-input power supply to a dedicated power source for redundancy and use an uninterruptable power supply (UPS) to protect against power failures. Each AC power supply operating between 100 and 240 VAC requires a dedicated 15A electrical power service for North America or a 10A electrical power service for international specifications. To connect the AC power supply, perform the following steps: Step 1 Verify that the power switch on the router is off (O). (See Figure 5-1.) 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 5-7