Installation Manual

Safety Guidelines Hardware Installation Guide
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:
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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-preventive wrist strap. All straps and cords
should be tested using a Wrist Strap Tester prior to use. 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: To prevent ESD damage to WipLL devices, always wear an ESD wris
t
strap when handling these devices or coming into contact with internal components.
2.1.2. Grounding
Only certain WipLL devices require additional grounding. WipLL devices that do
not require additional grounding have grounding at the main supply outlet. The
following table lists the WipLL devices’ grounding requirements.
Table 2-1: WipLL grounding requirements
Site WipLL device Grounding
BSR Through the mains (via BSDU)
BSDU
Additional grounding required (grounding lug at rear end
of chassis)
Base Station
BSPS
Additional grounding required (grounding lug at rear end
of chassis)
SPR Through the mains (via SDA) CPE
IDR Through the mains
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