Cisco Systems 2800 Network Router User Manual


 
3
Preinstallation Requirements and Planning for Cisco 2800 Series Routers
OL-5784-01
General Site Requirements
Determine if the person needs rescue breathing or external cardiac compressions; then take
appropriate action.
In addition, use the following guidelines when working with any equipment that is disconnected from a
power source, but still connected to telephone wiring or other network cabling:
Never install telephone wiring during a lightning storm.
Never install telephone jacks in wet locations unless the jack is specifically designed for it.
Never touch uninsulated telephone wires or terminals unless the telephone line is disconnected at
the network interface.
Use caution when installing or modifying telephone lines.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It can occur if
electronic printed circuit cards are improperly handled and can cause complete or intermittent failures.
Always follow ESD prevention procedures when removing and replacing modules:
Ensure that the router chassis is electrically connected to earth ground.
Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to
an unpainted surface of the chassis frame to channel unwanted ESD voltages safely to ground. To
guard against ESD damage and shocks, the wrist strap and cord must operate effectively.
If no wrist strap is available, ground yourself by touching a metal part of the chassis.
Caution
For the safety of your equipment, periodically check the resistance value of the antistatic strap. It should
be between 1 and 10 megohms (Mohm).
General Site Requirements
This section describes the requirements your site must meet for safe installation and operation of your
router. Ensure that the site is properly prepared before beginning installation. If you are experiencing
shutdowns or unusually high errors with your existing equipment, this section can also help you isolate
the cause of failures and prevent future problems.
Power Supply Considerations
Check the power at your site to ensure that you are receiving “clean” power (free of spikes and noise).
Install a power conditioner if necessary.
Warning
The device is designed for connection to TN and IT power systems.
Statement 1007
The AC power supply includes the following features:
Autoselects either 110 V or 220 V operation.