Chapter 2 Preparing for Installation
Safety Guidelines
Warning When you connect or disconnect the power and relay connector with power applied, an electrical arc can occur. This could cause an explosion in hazardous area installations. Be sure that power is removed from the switch and alarm circuit. Be sure that power cannot be accidentally turned on or verify that the area is nonhazardous before proceeding. Failure to securely tighten the power and relay connector captive screws can result in an electrical arc if the connector is accidentally removed. Statement 1058
Warning Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018
Warning The
Warning To avoid electric shock, do not connect safety
Warning A readily accessible
Warning To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord. Statement 1023
Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning Use copper conductors only. Statement 1025
Warning This unit might have more than one power supply connection. All connections must be removed to
Warning To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the weight of the unit. Statement 1032
Warning Connect the unit only to DC power source that complies with the safety
Cisco ASR 903 Router Hardware Installation Guide
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