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Cisco 800 Series Routers Hardware Installation Guide
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Chapter 2 Installation
Preventing Electrostatic Discharge Damage
Network Termination Point Statement
This product does not contain a “Network Termination Point” (NTP) as defined by ETSI 300 386-2. This
product is classified by the manufacturer as “Terminal Equipment.” If you have any additional questions,
please contact your local network operator.
ISDN S/T Ports Statement
These ports have not been classified as “directly connected ports” to outside cables as defined by
CISPR 24, 1997 by the manufacturer. If you have any additional questions, please contact your local
network operator.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) is a transfer of electrostatic charge between bodies of different
electrostatic potentials, such as a person and a piece of electrical equipment. It occurs when electronic
components are improperly handled, and it can damage equipment and impair electrical circuitry.
Electrostatic discharge is more likely to occur with the combination of synthetic fibers and dry
atmosphere.
Always use the following ESD-prevention procedures when removing and replacing components:
1. Connect the chassis to earth ground with a wire that you provide.
2. Wear an ESD-preventive wrist strap that you provide, ensuring that it makes good skin contact.
Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD
voltages to ground. To properly guard against ESD damage and shocks, the wrist strap and cord must
operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the
chassis. Always follow the guidelines in the preceding section, “Safety.”
3. Do not touch any exposed contact pins or connector shells of interface ports that do not have a cable
attached.
If cables are connected at one end only, do not touch the exposed pins at the unconnected end of the
cable.
Note This device is intended for use in residential and commercial environments only.
Caution Periodically check the resistance value of the antistatic strap, which should be between 1 and 10
megohms (Mohms).