Chapter 2 Preparing to Install the Router
Safety Guidelines
•When working under conditions hazardous to your eyes, wear safety glasses.
Safety with Electricity
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003
Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017
Warning To avoid electric shock, do not connect safety
Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. Statement 12
Warning During periods of lightning activity, do not work on the system or connect or disconnect cables. Statement 1001
Warning There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions. Statement 1015
Warning This unit might have more than one power supply connection. All connections must be removed to
When working on electrical equipment, follow these guidelines:
•Locate the room’s emergency power switch. If an electrical accident occurs, you can quickly switch off the power.
•Before working on the system, switch off the DC main circuit breaker and disconnect the power terminal block cable.
•Disconnect all power before performing the following:
Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
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