User's Manual

RadioFrame System Method of Procedure GSM/802.11b
Introduction
4 RadioFrame Networks, Inc.
1.3 Safety Precautions
Read all the notices in this section prior to installing or using the RadioFrame System or
any of its components.
1.3.1 Static Sensitive Precautions
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 intermittent failures.
Extreme care must be taken while handling, shipping, and servicing boards and
RadioBlades. To avoid static damage, observe the following precautions:
• Prior to handling, shipping, and servicing equipment, always put on a conductive
wrist strap connected to a grounding device. This discharges any accumulated static
charges. All RFN RadioBlades and Field Replaceable Units (FRUs), including BPCs
and APCs, are shipped with a disposable anti-static wrist strap
(RFN P/N 110-0610-00).
Warning!
Use extreme caution when wearing a conductive wrist strap near sources of high
voltage. The low impedance provided by the wrist strap also increases the danger
of lethal shock should accidental contact with high voltage sources occur.
• Handle boards by the edges and avoid touching any conductive parts of the board
with your hands.
• Never remove a board with power applied to the unit (hot-pull) unless you have
verified it is safe to do so. Make sure the unit will not be damaged by removing the
board.
• Avoid carpeted areas, dry environments, and certain types of clothing (silk, nylon,
etc.) during service or repair due to the possibility of static buildup.
• Apply power to the circuit under test before connecting low impedance test
equipment (such as pulse generators, etc.). When testing is complete, disconnect the
test equipment before power is removed from the circuit under test.
• Be sure to ground all electrically powered test equipment. Connect a ground lead (-)
from the test equipment to the board or module before connecting the test probe (+).
When testing is complete, remove the test probe first, and then remove the ground
lead.
• Place all boards and RadioBlades on a conductive surface (such as a sheet of
aluminum foil) when removed from the system. The conductive surface must be
connected to ground through 100kΩ.
• Never use non-conductive material for packaging boards or RadioBlades for
shipment or storage. All units should be wrapped with anti-static (conductive)
material. Replacement units shipped from the factory are packaged in a conductive
material.
• If possible, retain all original packing material for future use.