June 2015
PLT-01952, Version: A.2
Page 5
3
Physical Installation
Once an installation plan has been defined, the following installation can begin.
3.1
Reader Position
Reader is positioned within 2 meters (~6 feet) of the access gate. Distances greater than this could
allow a vehicle to be positioned past the reader’s RF field and therefore the tag can not be read.
Positioning the reader at or behind the gate will affect the perceived read range and driving habits.
The reader is intended to have a 3 to 5 meter read range measured from the reader to the tag. The
typical type and size of vehicle as well as the credential location with respect to the front bumper
should be considered when positioning the reader.
The reader should be positioned 1.8 to 2.4 meters (6 to 8 feet) above the lane when space permits.
This height provides excellent performance in open air applications with a mix of cars and full-size
trucks.
The reader should be positioned near the edge of the vehicle lane but located
such that it cannot be struck by passing vehicles. The reader can be mounted
to a flat surface or post. A typical mounting post is the PS094-AVIB from The
Housing Company and allows for additional adjustments to reader position
through the curved design.
The use of an adjustable mounting bracket is recommended. Mounts are
commercially available for flat surfaces and round posts:
•
The reader mounting box has drill points integrated for Video
Electronics Standards Association (VESA) style brackets on 75mm,
100mm, and 200mm centers. Mounts of this type are available from
many manufacturers and provide adequate articulation for reader
aiming.
•
For mounting to a round post, an AVI Clamp from The Housing
Company or similar style mount has been successfully implemented in
the field during product testing. The mounting box can be drilled as
required to mate to the mount as it may not provide VESA mounting
hole locations.
