Warning

Statement 1028—More Than One Power Supply This unit might have more than one power supply connection. To reduce risk of electric shock, remove all connections to de-energize the unit.

Follow these guidelines when working on equipment powered by electricity:

• Locate the emergency power-off switch in the room in which you are working. If an electrical accident occurs, you can quickly turn off the power.

• Disconnect all power before doing the following:

  • Installing or removing a chassis

  • Working near power supplies

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, frayed power cords, and missing safety grounds.

• Do not work alone if hazardous conditions exist

• Never assume that power is disconnected from a circuit. Always check

• Never open the enclosure of the internal power supply

• If an electrical accident occurs to another person, proceed as follows:

  • Use caution; do not become a victim yourself

  • Turn off power to the device

  • If possible, send another person to get medical aid. Otherwise, assess the condition of the victim and then call for help

  • 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 has telephone wiring or other network cabling connections:

• 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

• Remove power cables from all installed power supplies before opening the chassis

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 these ESD prevention procedures when removing and replacing modules:

• Ensure that the router chassis is electrically connected to the 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 anti-static strap. It should be between 1 and 10 megohms (Mohm).

Observe the following general precautions when using and working with your Cisco Catalyst 8200 Series Edge Platforms:

• Keep your system components away from radiators and heat sources, and do not block cooling vents.

• Do not spill food or liquids on your system components, and never operate the product in a wet environment.

• Do not push any objects into the openings of your system components. Doing that can cause fire or electric shock by shorting out interior components.

• Position system cables and power supply cables carefully. Route system cables and the power supply cable and plug so that they cannot be stepped on or tripped over. Be sure that nothing else rests on your system component cables or power cable.

• Do not modify power cables or plugs. Consult a licensed electrician or your power company for electrical modifications at your site. Always follow your local and national wiring rules.

• If you turn off your system, wait at least 30 seconds before turning it on again to avoid system component damage.

Cisco Catalyst 8200 Series Edge Platforms require specific environmental operating conditions. Temperature, humidity, altitude, and vibration can affect the performance and reliability of the router. The following sections provide specific information to help you plan for the proper operating environment.

This device includes an asynchronous serial console port. You access to the device locally using a console terminal connected to the console port. This section discusses important cabling information that you must consider before connecting the device to a console terminal.

Flow control paces the transmission of data between a sending and a receiving device. Flow control ensures that the receiving device can absorb the data sent to it before the sending device sends more data. When the buffers on the receiving device are full, a message is sent to the sending device to suspend transmission until the data in the buffers is processed. Console terminals send data at speeds slower than the speeds modems do; therefore, the console port is ideally suited for use with console terminals.

Note	Cisco Catalyst 8200 Series Edge Platforms have both EIA/TIA-232 asynchronous (RJ-45) and USB 5-pin mini Type B, 2.0 compliant serial console ports. Shielded USB cables with properly terminated shields are recommended.

When setting up your device, consider distance limitations and potential electromagnetic interference (EMI) as defined by the applicable local and international regulations.