HySecurity SlideSmart DCS 15 - Page 111

Using Photoelectric Sensors Instead of Vehicle Loops
Revision D Reference 6-13
Figure 6-11. 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-direconal 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*
*Reflecve 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 protecon
OUTSIDE OBSTRUCTION
INSIDE OBSTRUCTION
FREE EXIT