Chapter 1 Getting Started
Electrostatic Discharge Precautions
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255-700-019
PacketStar
™
PSAX 20 Access Concentrator User Guide
, Issue 1
Release 6.3.0
Electrostatic Discharge Precautions
The room where the PSAX 20 system is located must have built-in
precautions to provide protection from electrostatic discharge damage to
electronic components. The following sections provide details on these
necessary precautions.
Grounding Wrist Straps
Attach at least one grounding wrist strap to a common ground for each
chassis/electronic rack to be handled. Follow these guidelines for wrist straps:
•
Make sure the wrist straps or wrist strap cords have built-in 1-megaohm
(minimum) resistance.
•
Make sure the wrist straps and wrist strap cords are UL listed.
•
Ensure the wrist strap cord is long enough so it can be worn while
working either at the front or the back of the rack.
•
Always discharge any static charge by touching your wrist strap before
you touch the PSAX 20 chassis.
Floor Covering
Be sure the room has an antistatic floor covering (conductive mat, tiles, or
carpeting) to minimize static charge buildup as you walk across the room.
Follow these guidelines for installing and maintaining proper floor coverings:
•
Using foot grounding straps (attached to the heels of your shoes) is
recommended, even if you are walking in rooms with antistatic floor
covering. These straps provide additional protection against electrostatic
discharge. The straps should have built-in 1-megaohm (minimum)
resistance.
•
Wool carpet is not an acceptable floor covering.
•
Other types of carpet must be sprayed daily with a topical antistatic
chemical before you perform any work in the room. Paying constant
attention to carpet maintenance is time-consuming but required.
Temperature and Humidity
Establishing the proper temperature and humidity in the room where the
PSAX 20 system is located helps control many static discharge problems.
Maintaining proper room climate is especially important when heat is turned
on during the cold weather. To avoid damage to the PSAX 20 system, do not
allow the humidity to increase to the level where water droplets appear on
surfaces. The temperature and relative humidity must be kept within the
specified tolerance limits as shown in the
PacketStar
™
PSAX 20 Access Concentrator
Installation and Operation Guide
.
Summary of Contents for PacketStar PSAX 20
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