• Access Control

    Access control (AC) is the selective restriction of entry into an area. Simply put, access control is the act of controlling access. The field of access control can be related to both physical and information security fields.

  • Access Control System

    An access control system consists of the equipment and software used to control access into an area. The system determines who is allowed enter and exit while also controlling where and when they can enter and exit.

  • ADA

    ADA is an acronym that stands for the Americans with Disabilities Act. This act was signed into law in July 1990 with the purpose of guaranteeing that people with disabilities have the same opportunities as everyone else. The ADA provides and enforces strict regulations for the access control industry.

  • ADA Gate

    An ADA Gate is a gate built in compliance with the Americans with disabilities Act (ADA) passed in 1990. The ADA requires that gates be at least 36 inches wide to accommodate those with physical disabilities. This extended width makes it possible for those with walkers or wheelchairs to gain entry unimpeded.

  • Alerts

    Alerts are audio and visual signals. These signals are implemented on some turnstiles (especially optical) to alert attendants and users of unauthorized entry and lane status.

  • Arm Cover

    An arm cover is a padded sleeve that gets retrofitted to a turnstile arm. An arm cover softens impacts between metal turnstile arms and users in the cases of misuse and system malfunction.

  • Arm Length

    Arm length refers to the measured length of any given turnstile arm. The arm length is measured from the arm hub (connection point) to the tip of the arm.

  • Barrier-free

    A barrier-free turnstile is one that lacks physical restraints to entry. Instead, barrier free turnstiles utilize optical beams and optical beam detection equipment to sense when someone passes through. Many optical turnstiles are barrier free.

  • Base plate

    A base plate is the bottom part of a turnstile cabinet. To secure a turnstile, the base plate is bolted into the ground upon installation. Portable turnstiles have large, protruding base plates to stand steady without the need of bolting into the ground, allowing them to be moved with ease.

  • Bi-directional

    Bi-directional simply means something that can be accessed from two directions. A bi-directional turnstile or gate can be accessed both from entry and exit directions.

  • Cabinet

    A cabinet is the part of a turnstile that houses the mechanism, arms, and all other accessories. The cabinet is free-standing, but should be fastened to the ground. Cabinets can be customized to one of many finish options including stainless steel and black powder coat.

  • Cabinet style

    The cabinet style refers to the finish, the shape, and the size of the cabinet used to assemble a turnstile.

  • Capacity

    Capacity is how quickly authorized individuals can enter a facility. Capacity is at a maximum when there are no access control systems implemented and is at a minimum in highly secure entryways.

  • Card Stacking

    A programmable method of entry through a turnstile that allows multiple registrations with access control prior to entering. This method of entry keeps barriers open as long as all users passing through are authorized. Card stacking allows for an increase in throughput in high traffic areas and combats the development of traffic at turnstiles.

  • Card-reader

    A card reader is an electronic sensor that reads a magnetic strip or bar code on a specific card. Card readers can be integrated in access control systems with turnstiles or other gates. If presented with a card with the correct credential or level of authorization, a card reader will send a signal to its corresponding turnstile or gate to unlock.

  • Clockwise rotation

    A full height turnstile can be set up to rotate clockwise, as opposed to rotating counterclockwise or bidirectional.

  • Conduit opening

    Conduit openings are openings in the turnstile where primary power and other wiring feed into the turnstile. These conduit openings are usually on the underside of the baseplate of a turnstile cabinet to allow for wiring to be fed from underground.

  • Counter

    A counter, usually digital, can be attached to a turnstile cabinet and integrated with a turnstile’s mechanism plate to count either number or entries, exits, or both.

  • Counter Clockwise Rotation

    A full height turnstile can be set up to rotate counterclockwise, as opposed to rotating bidirectional or clockwise.

  • Crawl Detection

    Crawl detection is the practice of using infrared transmitters and receivers to detect when some individual attempts to crawl over or crawl under a waist high turnstile.

  • Crawl Over Protection- or Climb over Protection

    Infrared transmitters and receivers placed above the arms of a waist high turnstile used to detect when some individual attempts to crawl over turnstile arms and gain unauthorized access.

  • Crawl Under Protection

    Infrared transmitters and receivers placed below the arms of a waist height turnstile used to detect when some individual attempts to crawl under turnstile arms and gain unauthorized access.

  • Credential

    Having the proper clearance to pass through an access control system. One can check credentials through card readers and other forms of identification and access control.

  • Cut Sheet

    A cut sheet, often also referred to as a spec sheet, provides and describes the specifications of a particular product.

  • Dry Contact

    Dry contact is a synonym for “volt free.” That is, the electronic circuit is not wetted, hence the contact is deemed dry. Dry contacts are required for turnstiles integrated with readers. A dry contact is created in the communication between the reader and the turnstile solenoid so to either lock or unlock the turnstile.

  • Electronic Control

    Optional electronic control that allows your turnstile to be integrated with third party access control software. Works with optical, waist high, swing gates, and full height turnstiles.

  • Electronic Operation

    Electronic operation describes a type of turnstile option that includes an electronically powered solenoid for locking and unlocking and an electronic interface board with adjustable time control capable of controlling one direction of traffic through an access control device.

  • Fail Safe

    An option that enables a turnstile to allow free egress in the event of a power failure.

  • Fail Secure

    An option that enables a turnstile to deny passage in the event of a power failure.

  • Flow

    Flow can be defined as the number of individuals that travel through an access way during a given duration of time. Flow can be controlled with access control systems.

  • Framed Glass Gate

    A framed glass gate is a type of gate where the swinging door of the gate is composed of glass with a metal frame for structural support and durability.

  • Frameless Glass Gate

    A type of gate where the swinging door is composed of glass. Unlike the framed glass gate, the frameless glass gate lacks a metal frame structure around the glass door. These gates offer a sleek, modern look to fit today’s world.

  • Free Egress

    Free egress is the unrestricted passage through an access control system. More specifically, turnstiles and other access control system mechanisms are programmed to grant “free and unobstructed egress” in the event of an emergency by law as detailed in OSHA 1910.35. With a lack of free egress safeguards, an access control system runs the risk of trapping individuals during emergencies.

  • Full Height Turnstile

    A turnstile that provides a floor to ceiling barrier to entry. Much like a revolving door, a full height turnstile operates in either clockwise, counterclockwise, or bidirectional passage. These are the most secure turnstiles due to the fact that they do not allow for individuals to climb over or under the mechanism in attempt to gain unauthorized entry.

  • Gate

    A gate is a hinged barrier used to close an opening in a wall, fence, or access control setup.

  • Hayward Turnstiles

    A family owned and operated manufacturer of turnstiles and other gates for access control. Hayward provides the industry’s only turnstiles manufactured to aircraft standards.

  • Hands Free

    Hands free is a feature included with motorized gates, where the gate opens and closes on its own without any human intervention.

  • Heel Guard

    A heel guard is a padded accessory retrofitted to the lowest arms of a full height turnstile used to protect against heel injuries.

  • Heel Pad

    A heel pad is a cushioned accessory retrofitted to the lowest arms of a full height turnstile used to protect against heel injuries.

  • Hidden hinges

    Hidden Hinges are hinges designed in a way to be hidden from view as to be tamper proof. These hinges are seen on swing gates.

  • Hub

    The hub of a turnstile is the fixture that connects the arms of a waist high turnstile to the mechanism of the turnstile.

  • Hydraulic Shock Suspension

    Turnstiles use hydraulic shock suspension to control the speed at which the turnstile arms spin. The hydraulic shocks used in the turnstile mechanisms can be adjusted so that arms spin slower or faster accordingly. Hydraulic shock suspension prevents users from being hit with the back end of the turnstile arm movement.

  • Impassable Barrier

    An impassable barrier is a barrier that cannot be breached. When locked, full height turnstiles are impassable because they span from floor to ceiling and do not provide any possible room to circumvent.

  • Lane

    A lane is a passageway. Access control systems create lanes through which entry is controlled.

  • Lane Status Indicator

    The lane status indicator (LSI) is the indicator mounted on the top ends of each lane of an optical turnstile access control system. The LSI indicates the lane status. For example, an LSI can prompt users to present card, proceed through lane, or inform that the lane is closed.

  • Lane Width

    Lane width is defined as the width of the passageway through a turnstile or gate. Generally, a handicap unit will have a larger lane width than a regular unit.

  • Left Handed

    Turnstiles can be classified as either left or right handed. With waist high models, a turnstile is considered left handed if the cabinet is on your left as you enter a facility from the outside. With full height models, a turnstile is considered left handed if the arms rotate clockwise and you enter the cage on the left upon entering a facility from the outside.

  • Locked Entry

    Locked entry is a type of turnstile mechanism that is locked on attempted entry, where one needs to gain access to enter.

  • Locked Exit

    Locked exit is a type of turnstile mechanism that locks on attempted exit, where one needs to gain access to exit.

  • Loop Arm

    A loop arm is the arm from a swing gate that is formed into the shape of a “D.”

  • Manned Lobby

    A manned lobby is an area with a human guard, typically an entryway or lobby with access control systems. Manning a lobby is beneficial for stopping access control problems such as piggybacking, tailgating, and vaulting controlled access systems.

  • Manual Key Override

    A manual key override is a safeguard for access control systems. This feature unlocks one or both directions of passage in the system and is used in the case of system failure or emergency.

  • Mechanical Plate

    A steel plate upon which a turnstile or gate mechanism is fixed. The mech plate sits under the lid towards the top of the turnstile cabinet.

  • Motion Sensor

    A device used to detect moving objects, particularly individuals. These devices are often integrated as a component of access control systems and for security measures.

  • Motorized Gate

    A gate that opens and closes by the power of an internal motor.

  • One Way Swing

    Usually referring to a gate that can only swing in one direction-entry or exit.

  • Optical Beams

    Infrared electronic beams used in optical turnstiles. These beams detect whether an object has passed through the turnstile.

  • Optical Detection

    Utilizing optical beams, optical detection is the detection of breaks in the stream of infrared light to a receiver. If the optical beam is blocked from reaching the receiver, then the optical turnstile detects that an individual has passed through the turnstile.

  • Optical Lane Mounting Platform

    An optical lane mounting platform is a platform used to install an optical turnstile without having to drill or cut into existing floors.

  • Optical Turnstile

    An access control system designed to restrict or control access to a building or secure area. They operate similar to regular mechanical turnstiles, except for the fact that they rely on infrared beams and audible/visual interfaces to control entry. This turnstile uses sound and light to alert of attempted unauthorized entry as opposed to the physical restraint exhibited by mechanical turnstiles.

  • Padded Arm Covers

    A cover for turnstile arms, usually foam, that protects against injury by softening the surface that comes into contact with users of the turnstile. (See “Safety Sleeve” for more information)

  • Picket Style

    Similar to a picket fence, picket style describes a gate with vertical railings that resemble a picket fence in appearance.

  • Piggybacking

    Piggybacking is when another person follows through an access control point with the permission of the person who has gained access to a controlled access point. (See “tailgating” for a related controlled access problem)

  • Portable Turnstile

    A turnstile designed to be movable with ease. These turnstiles are usually fitted with wheels on the back side lower end of the cabinet so that when leaned over the turnstile can be rolled. These turnstiles are usually mechanical, but they can be fitted with an internal battery and wirelessly controllable software.

  • Post Mount

    A plate fixture used to mount post of a gate or railing.

  • Power Outage

    A power outage is a short-term or long-term loss of electrical power to a particular area. Turnstiles are designed to react to power outages in one of two different ways (see “fail safe” and “fail secure”)

  • Power Supply

    A power supply is an electronic device that supplies electrical energy to an electrical load (a component that consumes electrical power).

  • Push Button Operation

    Push button operation describes the system where a button is used to control electronic entry/exit of a turnstile or gate.

  • Quality Control

    Quality Control is a system of maintaining standards in manufactured products by testing a sample of the output against the specifications.

  • Railing System

    Railing systems are steel barriers used for pedestrian access/queuing control.

  • Reader Integration

    Integration between an identification reader/verifier and a turnstile/gate to work in unison.

  • Right Handed

    Turnstiles can be classified as either left or right handed. With waist high models, a turnstile is considered right handed if the cabinet is on your right as you enter a facility from the outside. With full height models, a turnstile is considered right handed if the arms rotate counter clockwise and you enter the cage on the right upon entering a facility from the outside.

  • Safety Sleeve

    A safety sleeve is an accessory designed to fit over the arms of both waist high and full height turnstiles. The sleeves provide padding and protection by softening the surface of the arms in order to minimize injury and maximize usability of turnstiles.

  • Self-Closing

    Referring to a gate that closes on its own.

  • Self-Lubricated Bearing

    A self-lubricated bearing is an oil impregnated bearing/bushing that provides a constant lubrication between bearing and shaft. No additional lubrication is necessary as the porous metal excretes lubrication when needed.

  • Shock Absorber

    A hydraulic piston-like part of a turnstile mechanism used to control the speed of rotation of turnstile arms

  • Solenoid

    A solenoid is a transducer that converts electrical energy into linear motion. Simply, in an electric turnstile a solenoid provides the motion needed to lock the gear that allows the turnstile to spin.

  • Sound Card

    A sound card is a component implemented in optical turnstiles that creates and emits sounds. A sound card can be programmed to react to different scenarios, such as creating an alarm noise for unauthorized access or being silent for authorized access.

  • Stop Post

    A stop post stops a swing gate from going in the opposite direction when a strike plate is added.

  • Strike Plate

    A strike plate is a piece of metal welded to the swing gate arm used to prevent the arm from swinging beyond the stop post.

  • Supervised Environment

    An environment where a guard is on watch. Supervised environments are recommended for barriers that can be easily circumvented.

  • Swipe To Enter

    A card reading system implemented with access control systems where turnstiles or gates are fashioned with a card swipe (type of card reader). The card swipe component grants access to those with the correct clearance and denies access to those without a swipe card or those that lack clearance to the area past the access control point.

  • Tailgating

    Tailgating is when another person, whether authorized or not, passes through an access control point without the knowledge of the person who has gained legitimate access to the controlled access point. (See “piggybacking” for related controlled access problems)

  • Tandem

    A full height turnstile that has two entry points connected at the center making one combined stand-alone unit. Tandem full height turnstiles are perfect for saving space without sacrificing throughput and security.

  • Throughput

    Throughput is how quickly authorized individuals can enter a facility. Throughput is at a maximum when there are no access control systems implemented and is at a minimum in highly secure entryways.

  • Tripod turnstile

    Waist high turnstile with three arms that can spin in one or two directions.

  • Turnstile

    A turnstile is a mechanism that allows a location to have control over enter and exit. A traditional turnstile consists of a horizontal arm that extends from a post and allows a person to pass through, given that a particular condition has been met. A turnstile provides security, controls crowds, prevents loss from theft, and controls admission and/or access.

  • Two-Way Swing

    Two-way swing usually refers to a gate that can swing in two ways. Also know as bi-directional.

  • Voltage

    Voltage is a force that makes electricity move through a wire. It is measured in volts and is named after Alessandro Volta. Turnstiles run on 24 Volts DC, which can be converted from 110-240 Volts AC.

  • Waist High Turnstile

    A turnstile with revolving horizontal arms protruding at waist height used to control access.

  • Wall Mount

    A turnstile or gate can be custom fitted to mount on an existing wall.

  • 180 degrees

    180 degrees is a classification given to a swing gate if the gate allows bi-directional passage. To allow bi-directional passage the arms of the swing gate must turn 90 degrees in one direction as well as 90 degrees in the other direction, creating 180-degree movement.

  • 24 Volt

    24 Volt is a low voltage input used to power electronically operated turnstiles. Most electronically operated turnstiles come equipped with a power supply that converts 120V alternating current to the 24V direct current needed to power a turnstile, allowing users to power their turnstiles from ordinary wall outlets.

  • 90 degrees

    90 degrees is a classification given to a swing gate that only opens in one direction. A stop post is used to stop the motion of the swing arm of the gate so to ensure only 90 degrees of travel is achieved.