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Versus Technology, Inc.
Due to the line-of-sight nature of the infrared light created by tags, it is also possible to apply masking
to the reader to limit or control the field of view. However, proper placement is always the preferred
method for controlling reader field of view.
Sunlight interference
If the room has windows that allow a large amount of sunlight to enter the room, place the reader in a
position where the sunlight does not reflect directly into it. Sunlight can decrease reader range and
field of view if allowed to enter the reader. Window tint films that block infrared (heat) energy greatly
reduce this effect.
The reader should be located so that it has the best possible view of the room. If the room has a
complex shape and no single reader position will provide adequate coverage, multiple readers should
be considered.
3.1.5 RF Reader Location Planning
Walls or other obstacles do not obstruct an RF reader receiving RF tag signals. RF signals are able to
penetrate briefcases, backpack, walls and ceilings. For this reason, RF readers are ideal for detecting
assets as they are removed from a facility. An RF readers range is approximately 50 feet in radius
with no interference. Because of different building configurations, the read range of an installed RF
reader will vary.
3.2 Safety and Code Considerations
Safety procedures and adherence to local building codes are the responsibility of the system installer.
Versus products have been designed to be safe and reliable under the use and conditions in which they
are intended. The following sections detail those aspects of the system that might affect safety.
3.2.1 Equipment Handling
The components used in a typical installation contain internal circuits that are sensitive to static
electricity. Static electricity transported by the human body may be strong enough to damage internal
circuitry during installation. Most components do not normally have exposed connector pins, but if
handling with exposed connectors or pins is required, the installer should use an anti-static wristband
connected to an electrical ground. This is especially important when temporarily disconnecting and
reconnecting cables.
WARNING
!
Avoid touching bare contacts or connector pins when handling system
c o m p o n e n t s i n o r d e r t o p r e v e n t t h e a c c i d e n t a l t r a n s f e r o f s t a t i c t o
i n t e r n a l d e v i c e s . L e a v e p r o t e c t i v e c o v e r s a t t a c h e d d u r i n g i n s t a l l a t i o n .
The hardware m a y b e d a m a g e d i f c o n n e c t i o n s a r e m a d e w i t h t h e s y s t e m
power applied. Do not attempt to connect or disconnect readers with
p o w e r a p p l i e d ! D o i n g s o m a y v o i d e q u i p m e n t w a r r a n t i e s .
A l l o w i n g c a b l e s t o c o m e i n t o c o n t a c t w i t h m e t a l s u r f a c e s a n d s t r u c t u r e s ,
or a l l o w i n g w i r e s t o b e r o u t e d i n c l o s e p r o x i m i t y o f h i g h p o w e r e d
e q u i p m e n t o r d e v i c e s c a n i n t r o d u c e e l e c t r i c a l i n t e r f e r e n c e a n d m a y
c a u s e e r r a t i c o p e r a t i o n a n d / o r e q u i p m e n t f a i l u r e .
