User's Manual

Hardware Installation Manual Safety Guidelines
02030311-03 Airspan Networks Ltd. 2-3
2.2.1. Handling Electrostatic Devices
Electrostatic devices are those devices that may be damaged by the inadvertent
discharge of static electricity from a charged body. The risk of damage, due to
electrostatic discharge (ESD) to a device, may cause the device to fail suddenly, or it
may induce a partial defect within the device, which will cause subsequent
premature failure.
Static electricity can result from operators walking on floors, moving around on
chairs, from the movement of operator's clothing or even casual brushing against
racks, benches or walls.
Airspan recommends the following guidelines to be adopted to minimize the risk of
component failure due to electrostatic discharge to the device:
! WipLL devices are provided typically in see-through anti-static bags. Wherever
possible, checking and inspection of a unit should occur without removing it
from the bag.
! All operators shall wear the approved conductive overall.
! Where operators come into direct contact with any piece of electronic hardware,
operators must wear an ESD bonding wrist strap. All straps and cords should be
tested using a Wrist Strap Tester prior to use.
All operators shall wear an ESD-preventive wrist strap and cord to a suitable
non-mains earth (ESD stud) on the rack. The wrist strap cords shall have a 2
Meg Ohm resistor fitted at either end. Wrist straps should be worn in direct
contact with bare skin and not over clothing.
Warning: Under no circumstances is it permissible for units to be handled by
unprotected operators.