Figure 76. Photo Eye Placement when used as Vehicle Detectors
B
ENTER
EXIT
A
ACCESS CONTROL DEVICE
(Card reader, etc.)
PUBLIC SIDE
This layout illustrates a
bi-direconal traffic system with
controlled access entry (card
reader, radio control, etc.) and
photo eyes used as vehicle
detectors. The gate’s closure
me is determined by the number
of seconds entered in the
CLOSE TIMER display found in the
User Menu. The close mer
starts when all photo eyes
are clear. The mer is adjustable
from 1 to 99 seconds.
SECURE SIDE
C
D
DIMENSIONS
A
= width of roadway*
*Reflecve photo eyes can only
be used if “A” is less than 24 (7.3m)
Select appropriate distances
between B, C, and D to make
sure vehicles remain detected
within the photo eye zones.
2
Placement of
photo eyes
if used as
vehicle detectors.
3
Placement of
photo eyes
if used as
vehicle detectors.
1
Placement of
photo eyes
if used as
vehicle detectors.
Placement of photo eyes for entrapment protecon
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MX4505 Rev. E ©2020
96
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