PathMinder 5000 Oval Barrier Arm Optical Turnstiles – Generic Specifications

v1.6 2003/10/01

Note: some options are denoted by [ option 1 | option 2 ]

1.	Optical Turnstiles
1.1.	General description: The optical turnstile system shall monitor and be able to restrict pedestrian traffic between public and secure areas.  Each turnstile lane shall use an array of optical sensors to determine the number and direction of persons passing through the lane.  Each turnstile shall be able to authorize passage to persons presenting a valid electronic security card (or other authentication device).  Turnstiles shall be integrated with the building access control system.  Turnstiles shall feature retractable barriers to block the pedestrian’s path.
1.2.	Physical description:
1.2.1.	The optical turnstile system shall be composed of electrically controlled barrier free or retracting barrier type optical turnstiles [permanently mounted to floor | mounted on rubber-topped 0.5” aluminum platforms resting on the floor, with all cabling passing through channels in the platform].
1.2.2.	The first and single lanes shall consist of the main detection and activation unit containing optical receivers as required by the design of the system.
1.2.3.	Subsequent units (“interlanes”) shall integrate the control, detection and lighting systems so that the total number of units for a series of lanes in one location shall be equal to the number of lanes, plus one.
1.3.	Turnstile needs:
1.3.1.	The installation shall consist of [NN] first lanes and [NN] interlanes.
1.4.	Appearance: Each unit shall be housed in a brushed #4 stainless steel housing with easily accessed but discrete fasteners, oval in plan with dimensions approximately 38” in length by 20” in width by 41” in height.  Each unit’s internal structure shall be made of steel.
1.5.	Detection sensors: Design of the unit shall feature at least 24 optical sensors
1.5.1.	Each sensor shall be composed of a separate transmitter and receiver; no reflectors shall be used
1.5.2.	Each sensor shall resist all interference from natural and indoor lighting
1.5.3.	Each sensor shall use pulsed beams (beams that rapidly turn on and off) to allow perfect operation in direct sunlight and so as not to be fooled by a flashlight.
1.5.4.	Each infrared beam shall have a minimum transmitted span of 20° to allow for perfect operation when turnstiles are dramatically misaligned. Units that require careful alignment for proper operation shall not be acceptable. 
1.5.5.	Sensors shall be deployed in a matrix configuration, such that each optical receiver shall detect the beams from several optical transmitters; the optical detection matrix shall offer at least 96 detection beams
1.5.6.	Sensors shall be deployed at a minimum of three different heights to be able to count legs and to be able to defend against people trying to roll/crawl through the lane without being detected; there shall be sensors at approximately ankle height, knee height, and waist height .
1.6.	State control:
1.6.1.	The turnstile shall be bi-directional, allowing traffic in both directions.  Each direction may be in one of three states:
1.6.1.1.	Free passage: all persons are authorized to pass under all conditions
1.6.1.2.	Card access: each person must present a valid security card to the card reader before being authorized to pass
1.6.1.3.	Lane closed: no persons are authorized to pass, and security cards are ignored
1.7.	Card readers:
1.7.1.	Design of unit shall accept card readers provided by [INSERT CARD MFGR HERE].
1.7.2.	There shall be space for two card readers per lane (one for each direction)
1.7.3.	The turnstile shall be able to accommodate a top-mounted or side-mounted card reader
1.7.4.	The unit shall accept card reader/pin pad, provided by others for recessed mounting at the right hand side at entrance to lane
1.7.5.	The turnstile shall be able support any card reader that is compatible with the access control system
1.7.6.	It shall be possible to shunt one card reader in a lane when the other has recently accepted a card (to prevent two people from passing through the lane in opposite directions simultaneously), provided that the card readers have Wiegand outputs wired through the turnstile’s electronics
1.8.	System integration:
1.8.1.	The design of the units shall provide a minimum of 16 dry contact inputs and 6 dry contact outputs (each selectable as either a normally open or a normally closed contact), including:
1.8.1.1.	access granted input × 2, access denied input × 2
1.8.1.2.	lane open input × 2, lane closed input × 2
1.8.1.3.	guard authorized access input × 2
1.8.1.4.	door contact output × 2, unauthorized entry output × 2
1.8.1.5.	general alarm output × 1, trouble alarm output × 1
1.8.1.6.	clear alarm input × 1
1.8.1.7.	diagnostic mode/barrier disable input × 1
1.8.1.8.	service mode input × 1
1.8.1.9.	auxiliary input × 1
1.8.2.	The design shall be able to monitor Wiegand card readers, and shall provide:
1.8.2.1.	Wiegand (6-cable) card reader input × 2
1.8.2.2.	Wiegand (6-cable) card reader output × 2
1.8.3.	The design of the units shall provide three separate audio outputs for:
1.8.3.1.	alarm buzzer (tailgating, beam blocked, etc.)
1.8.3.2.	access granted buzzer
1.8.3.3.	access denied buzzer
1.8.4.	Each unit shall accept guard shunt inputs to permit remote release (by authorized personnel); this would typically be wired to a pushbutton at the guard desk to allow a site visitor to enter without a badge and without generating an alarm. When the input contact is closed momentarily, then released, the turnstile will open the lane for a single person to pass in one direction without presenting a badge, and will wait for many seconds (configurable by the installer) for the person to actually walk through; while the contact is held, the lane will act as if it were in free passage mode—any number of persons shall be allowed to pass without presenting an electronic ID badge.
1.8.5.	Each unit shall signal the passage of a pedestrian in each direction (in/out).
1.8.6.	Each unit shall signal trouble with the unit.
1.8.7.	Each dry contact input shall have a corresponding LED or light source to show the status of that contact input (for debugging purposes); the LED shall turn on when the contact input is closed, and the LED shall turn off when the contact input is open
1.8.8.	It shall be possible to control the turnstiles (set free passage/card access/lane closed mode, clear alarms, manually authorize access for a single person) by all of the following methods:
1.8.8.1.	from the access control system (via relays)
1.8.8.2.	from a desktop-mounted control panel (supplied separately by turnstile manufacturer)
1.8.8.3.	from a Windows-based software package (supplied separately by turnstile manufacturer, and using a standard RS-232 serial cable)
1.8.9.	It shall be possible to control “integration parameters” from dip switches within the turnstile and from a Windows-based software package (supplied separately by turnstile manufacturer, and using a standard RS-232 serial cable).  Independently configurable parameters shall include:
1.8.9.1.	whether the audible outputs should be a solid tone or whether they should beep several times
1.8.9.2.	the rate at which the audible outputs pulse (their beeping speed)
1.8.9.3.	the total length of the audible alarm, in seconds
1.8.9.4.	the rate at which the end lights flash (during alarm)
1.8.9.5.	the total length of the visual (flashing light) alarm
1.8.9.6.	whether to infer that access has been denied if an access granted signal isn’t received in a given period of time; also, the length of time to wait
1.8.9.7.	the length of time to allow a beam to be blocked before generating an alarm
1.8.9.8.	whether to generate an alarm when a person partially enters the sensor array then backs out
1.8.9.9.	whether to generate door contacts when a person walks through a lane in free passage mode
1.8.9.10.	the length of the door contact pulses generated when people walk through
1.8.10.	In particular, it shall be possible for the installer/end-user to set different timeouts for the audible and visible alarms (i.e., it shall be possible to, for each alarm, generate a two second audible tone and have the end and top lights flash for 10 seconds).
1.9.	User interface:
1.9.1.	Design of the unit shall feature coloured lights on the ends of the turnstiles, clearly visible by a person approaching from a distance of 50 feet, in direct sunlight.  The lights shall appear on the left-hand and right-hand sides of each lane in each direction; thus, each lane will have an end light at each corner (so the guard will be able to easily identify alarms without having to stop to ponder whether the light indicates an alarm in the lane to the left or the right of the light).  Lights shall use LEDs or other approved long life light source.
1.9.1.1.	Yellow shall mean unit ready to accept user card.
1.9.1.2.	Green shall mean acceptance of card and permission granted to proceed.
1.9.1.3.	Red shall mean that the lane is closed/disabled.
1.9.1.4.	Alternating red and yellow shall indicate permission denied.
1.9.1.5.	Flashing red shall indicate an alarm.
1.9.2.	The unit shall feature lighted pictogram indicators on the horizontal top surface of the turnstile. Lights shall use LEDs or other long-life light source.
1.9.2.1.	A green arrow light shall appear when the person may walk through (i.e., when their card has been accepted, or when the lane is in free passage mode).
1.9.2.2.	A red circle-and-line “do not enter” symbol shall appear when the lane is closed, and shall flash when an alarm occurs.
1.9.2.3.	Each pictogram indicator shall use optical louvers; a person using a lane shall have difficulty seeing pictograms on adjacent lanes, but shall see the pictograms for their own lane clearly.
1.9.3.	The unit shall clearly indicate where the card should be presented:
1.9.3.1.	For card readers mounted on top of the turnstile, concealed under a Corian, granite, or other similar top surface: there shall be a 5” diameter stainless steel ring embedded in the top surface. A hand-with-card pictogram shall be engraved within the ring, and the engraved lines that form the pictogram shall be filled with brilliant white paint for easy visibility.
1.9.3.2.	For card readers mounted on the side of the turnstile, a frosted or opaque plastic panel shall conceal the card readers.  The plastic panel shall be flush with--and follow the form of--the side of the turnstile.
1.10.	Accessibility:
1.10.1.	All lanes shall comply with ADA regulations.
1.10.2.	The length and the shape of the housing shall be designed to comply with ADA while maintaining a 32” lane width.
1.10.3.	A separate swing gate or separate ADA-compliant entrance shall not be acceptable.
1.10.4.	The turnstile shall detect and disregard guide dogs (i.e., the turnstile shall not generate an alarm when an authorized user walks through accompanied by a guide dog).
1.10.5.	The turnstile shall detect and disregard wheelchairs (i.e., the turnstile shall not generate an alarm when an authorized user rolls through in a wheelchair).
1.10.6.	The turnstile shall allow wheelchair users to partially enter the lane before presenting their electronic ID card, without an alarm being triggered (i.e., the user can roll into the lane, present the card, and roll through; the user doesn’t need to stay outside the lane and stretch awkwardly to present the card).
1.11.	Performance and reliability:
1.11.1.	Each turnstile shall provide a throughput of 30 people per minute, provided that the delay from card read to access granted signal is less than 0.5 seconds.
1.11.2.	Design of the unit shall provide for the sensing of "tailgating" of detecting pedestrians walking with a minimum following distance of 6mm (1/4").  Detection of tailgating shall trigger the alarm.
1.11.3.	The unit shall use no moving parts outside the barrier mechanism. In particular, the unit shall use no cooling fans; cooling fans fail over time, and cause cascading failures as components overheat.
1.12.	Alarms:
1.12.1.	Design of the unit shall feature the activation of an alarm and signal to the security system (via a relay contact closure), with automatic reset to "ready" mode after an adjustable time period.  It shall be possible to have simultaneous audible and visual alarms (flashing lights) on the turnstile.  It shall be possible to adjust the length of the audible alarm independently of the length of the visual alarm.
1.12.2.	It shall be possible to terminate an alarm from a remote switch (mounted on the guard desk), from a desktop control panel (available separately), or from a Windows software package (available separately)
1.12.3.	Design of the unit shall trigger an intermittent alarm if the lane is blocked longer than a period of time (which shall be adjustable) and cause the "do not enter" signals to flash, with adjustable duration.
1.12.4.	The turnstiles shall be fault tolerant:
1.12.4.1.	The turnstile shall detect and discern common objects carried by people, and will avoid generating alarms for: wheeled carry-on size suitcases (pushed in front of or pulled behind the person), briefcases, purses, book bags, canes, umbrellas, guide dogs.
1.12.4.2.	The unit shall be able to detect, discern, and avoid generating alarms for common objects while still offering ¼” tailgate detection (i.e., units that can only offer a low false alarm rate when “security sensitivity” is reduced shall not be acceptable).
1.12.4.3.	The turnstile shall not generate an alarm if only a single beam is broken.
1.12.4.4.	The turnstile shall not shunt any sensors during the passage; all detection beams shall remain active at all times.
1.12.4.5.	Unless in “service mode”, the turnstile shall not ignore sensors or objects in the detection array at any time; ignoring beam activity for a given period of time as or after a person walks through shall not be an acceptable method of reducing false alarms due to swinging arms, purses, packages, etc.
1.12.4.6.	The turnstile shall allow a person to partially enter the lane before an access granted is received without generating an alarm; it shall be possible to configure the sensitivity to persons partially entering the lane.
1.12.4.7.	The turnstile shall not generate an alarm when it is bumped or otherwise pushed out of alignment.
1.13.	Barrier configuration:
The retractable barriers shall be normally closed, unless released by the fire alarm system.
1.13.1.	Barriers shall be prevented from activation in the event that deployment could strike and or injure the pedestrian; the unit shall be able to use at least 24 safety sensors to detect when a person or object is in the barriers’ path
1.13.2.	Barriers shall retract immediately if they encounter resistance while closing
1.13.3.	Barriers shall automatically return to the normally closed position after the last sensor has been cleared
1.13.4.	Barriers shall be lockable; when locked, once fully closed, barriers shall not retract if a person tries to force them open
1.13.5.	Turnstiles shall be designed to immediately return to the barrier free mode upon activation of the fire alarm system and/or power failure.  When the fire alarm input is triggered, the turnstile shall open barriers, go to “free passage” mode in both directions, and keep the turnstile electronics active to generate door contacts for the access control system (for people-counting purposes).  When power is lost, the barriers shall automatically retract, solely by mechanical means.
1.14.	Design of the barriers:
1.14.1.	There shall be two barriers per lane, with each barrier blocking approximately half the width of the lane
1.14.2.	The barriers shall move only in a vertical plane that is perpendicular to the pedestrian’s direction of travel; the barriers shall not, in their course of movement, move towards or away from the pedestrian
1.14.3.	Each barrier shall have a flat vertical surface area of at least 250 square inches.
1.14.4.	The turnstile shall be offered with three types of barriers, as specified by customer:
1.14.4.1.	“Retractable door” style barriers that are rectangular in shape, and function like elevator doors, extending the full height of the lane; such barriers will travel and retract in a level motion—the top of the barrier will remain at a constant height throughout its range of motion
1.14.4.2.	“Tall retractable door” style barriers that are rectangular in shape, and function like elevator doors, extending above the turnstile body to a full height of 60”, 72”, or 84”; such barriers will travel and retract in a level motion—the top of the barrier will remain at a constant height throughout its range of motion
1.14.4.3.	“Retractable wing” style barriers that are approximately triangular in shape, and travel in a motion similar to automotive windshield wipers: the triangle is inverted, and the bottom point of the triangle serves as a pivot point
1.14.5.	The barriers shall retract to be flush with the turnstile; when fully open, the barriers shall not encroach upon the traffic area
1.14.6.	The barriers shall be made of tempered glass
1.14.7.	The barriers shall normally be operated in a normally-closed position; the barriers shall open to permit a person to pass, and shall close as soon as the person has cleared the barrier
1.14.8.	It shall be possible to disable the barriers on-the-fly; in such a case, the barriers shall retract into the turnstile, and the turnstile shall behave as a barrier-free turnstile; it shall be possible to enable this behavior from a desktop control panel, from software running on a Windows computer, and by the fire alarm input
1.14.9.	The barrier shall be powered by a servo motor, and shall be able to operate at varying speeds; the barrier shall be able to open or close in less than 0.75s 
1.14.10.	The barrier and motor shall be designed for a 100% duty cycle (continuous operation—running at a constant throughput of 30 people per minute, 24 hours a day, 7 days a week)