Preventing Electrostatic Discharge Damage - Cisco 836 Hardware Installation Manual

Preparing for Installation
Warning
Warning

Preventing Electrostatic Discharge Damage

Step 1
Caution
Step 2
Cisco 836 Router and SOHO 96 Router Hardware Installation Guide
2-30
Network hazardous voltages are present in the ISDN cable. If you detach the
ISDN cable, detach the end away from the router first to avoid possible electric
shock. Network hazardous voltages also are present on the system card in the
area of the ISDN port (RJ-45 connector), regardless of when power is turned off
(by pressing power switch to standby).
Ultimate disposal of this product should be handled according to all national
laws and regulations.
Electrostatic discharge (ESD) is a transfer of electrostatic charge between bodies
of different electrostatic potentials, such as an operator 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 follow these steps to prevent ESD when you remove and replace
components:
Wear an ESD-preventive wrist strap that you provide, ensuring that it makes good
skin contact.
To properly guard against ESD damage and shocks, the wrist strap and cord must
operate effectively.
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.
Chapter 2 Installation
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