•Alwaysuse an ESDgrounding strap when you are handling components that are subject
toESD damage, and make sure that it is in direct contact with yourskin.
Ifa grounding strap is not available,hold the component in its antistatic bag (see Figure
39on page 143) in one hand and touch the exposed, bare metal of the device with the
otherhand immediately before inserting the component into the device.
WARNING: Forsafety, periodicallycheck the resistance value of the ESD
strap.The measurement must be in the range of 1 through 10 Mohms.
•Whenhandling any component that is subject to ESD damage and that is removed
fromthe device, make sure the equipment end of your ESD strap is attached tothe
ESDpoint on the chassis.
Ifno grounding strap is available,touch the exposed, bare metal of the deviceto ground
yourselfbefore handling the component.
•Avoidcontactbetween the component that is subject to ESD damageand your clothing.
ESDvoltages emitted from clothing can damagecomponents.
•Whenremoving or installing a component that is subject toESD damage, always place
itcomponent-side up on an antistatic surface, in an antistatic card rack, or in an
antistaticbag (see Figure 39 on page 143). If you are returninga component, place it in
anantistatic bag before packing it.
Figure 39:Place a Component into an Antistatic Bag
CAUTION: ANSI/TIA/EIA-568cables such as category 5e and category6
canget electrostatically charged.To dissipate this charge,always ground
thecables to a suitable and safeearth ground before connecting them to the
system.
Related
Documentation
GeneralSafety Guidelines and Warnings for EX Series Switcheson page 113•
•SeeRear Panel of an EX2200 Switch on page 6 for the ESDpoint location.
•SeeRear Panel of an EX3200 Switch for the ESD point location.
•SeeRear Panel of an EX4200 Switch for the ESD point location.
143Copyright© 2010,Juniper Networks, Inc.
Chapter18: Power and Electrical SafetyInformation