Cisco G1 Installation Guide - Page 39
Connecting DC-Input Power to a Cisco 7200 VXR Router
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Chapter 7 NPE-G1 and NPE-G2 Installation and Configuration Information Installing the NPE-G1 or NPE-G2 Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that 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 position, and tape the switch handle of the circuit breaker in the OFF position. Statement 322 Warning When installing the unit, the ground connection must always be made first and disconnected last. Statement 42 Step 1 Step 2 At the rear of the router, check that the power switch on the power supply is in the off (O) position. Ensure that no current is running through the -V and +V leads. 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 position, and tape the switch handle of the circuit breaker in the off position. Figure 7-27 Connecting DC-Input Power to a Cisco 7200 VXR Router 1 66432 23 4 1 Power switch 2 Ground lead service loop 3 Cable tie 4 DC power leads Step 3 If necessary, use a wire stripper to strip approximately 0.55 inch (14 mm) from the -V, +V, and ground leads. (See Figure 7-28.) OL-4448-12 Network Processing Engine and Network Services Engine Installation and Configuration 7-39