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Cisco 7304 Router Modular Services Card and Shared Port Adapter Hardware Installation Guide
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Chapter 4 Preparing to Install a Modular Services Card or a Shared Port Adapter
Safety Guidelines
Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
• Before beginning any procedures requiring access to the chassis interior, locate the emergency
power-off switch for the room in which you are working.
• Disconnect all power and external cables before moving a chassis.
• Do not work alone when potentially hazardous conditions exist.
• Never assume that power has been disconnected from a circuit; always check.