Technical information

LOOP DETECTION SYSTEMS LOOP DETECTION SYSTEMS
Loop Layouts and Operation:
Exit Loop - Opens gate when vehicle is
present. Typically utilized for “Free Exit”
applications.
Reverse Loop (optional Stop Loop) - Will
hold gate open when vehicle is present.
After vehicle departs, gate will time out and
run closed. During Closing Cycle, a Vehicle
activating this loop will Reverse and re-open
the gate. As an option on Slide gates, these
loops may be set to Stop the gate rather than
re-open them (see Advanced Systems
section).
Resident Entry Lane
Visitor Entry and
Emergency Access Lane
Loop Detectors
Exit
R
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R
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R
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D
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S
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THREE LANE LAYOUT
Typically, 2 reverse loops may be connected
to 1 Loop Detector.
Shadow Loop - Functions like a Reverse
Loop, but only active when gate is at the Full
Open position. Will hold gate open while
vehicle is present. Once gate starts its
closing cycle, this loop is disabled.
Down Loop - Used with Parking Gate
Operators. Will hold arm UP while vehicle is
present. Once vehicle clears loop, Arm will
Lower to DOWN position.
Arming Loop - This is tied into Card Reader
or other type of Access Device. Reader
Device will only function while vehicle is
present.
ACCESS CONTROL SOLUTIONS . . . 18 Preventative Maintenance Guide