Patton electronic smartnode 4110 사용자 설명서

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11
 
Model 4520 & 4110 Series Getting Started Guide 
 
About this guide
 
Preventing electrostatic discharge damage
 
When starting to install interface cards place the interface card on its shielded plastic bag if you lay it on your bench.
 
General observations
 
Clean the case with a soft slightly moist anti-static cloth
Place the unit on a flat surface and ensure free air circulation
Avoid exposing the unit to direct sunlight and other heat sources
Protect the unit from moisture, vapors, and aggressive liquids
 
Before opening the chassis, disconnect the telephone network 
cables to avoid contact with telephone line voltages.
Ultimate disposal of this equipment must be handled according 
to all applicable national laws and regulations.
Electrostatic Discharge (ESD) can damage equipment and impair 
electrical circuitry. It occurs when electronic printed circuit cards 
are improperly handled and can result in complete or intermit-
tent failures. Do the following to prevent ESD:
 
 
Always follow ESD prevention procedures when removing 
and replacing cards.
 
 
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 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.