Our Full Length Optical Turnstile uses one MCIO board monitoring infrared sensors and access control system inputs to sense direction and count people and objects passing through a sensing area. Two relay outputs communicate system status to the access control system. LED displays and sounders communicate operational status at the sensing area.

System Inputs
System Outputs
System Operation
System Adjustment
System Options
MCIO Board Input Terminal Strip
MCIO Board Output Terminal Strip

SYSTEM INPUTS

The access control system provides five contacts to determine the operating modes of the optical turnstile system. Infrared sensors located in the center of the sensing area count and determine the direction of persons and objects passing through the sensing area.

SYSTEM BYPASS - This maintained N/O input places the system into bypass mode.  No alarm will be generated, the bypass status relay opens, and any active alarm is reset. This input can be activated from the access control system or from a remote bypass key switch.

VALID ENTRY CARD - This momentary (1/4-sec) N/O input places the system into valid entry access mode. One person may pass through the sensing area in the entry direction, and then the system is reset to arm mode. If a person passes through the sensing area in the entry direction without presenting a valid entry card, the entry alarm is generated.

VALID EXIT CARD - This momentary (1/4-sec) N/O input places the system into valid exit access mode.  One person may pass through the sensing area in the exit direction, and then the system is reset to arm mode. If a person passes through the sensing area in the exit direction without presenting a valid exit card, the exit alarm is generated. 

FREE EXIT CONTROL - This maintained N/O input places the system into free exit mode.  Persons may pass through the sensing area in the exit direction without causing an alarm.  Passage in the entry direction operates normal.

INVALID CARD - This momentary (1/4-sec) N/O input places the system into a pre-alarm mode.  If a person passes through the sensing area, an alarm is generated.  This mode automatically resets to armed after an adjustable time delay.

INFRARED SENSORS - Two through-beam infrared sensors are used to monitor persons passing through the sensing area.  They are located in the center of the sensing area, 20 inches off the ground.

SYSTEM OUTPUTS

The Optical Turnstile system has two relay outputs to communicate system status to the access control system, and four sets of display outputs to communicate system status to the persons passing through the sensing area.  The relay outputs are rated at 1/2 AMP @ 30 VDC, and the display outputs can drive LED arrays and small low voltage incandescent lamps.  (Refer to system options for display options)

ALARM - This maintained N/C output opens when a person passes through the sensing area without presenting a valid card.

BYPASS - This maintained N/C output opens when the system is placed into bypass mode by the system bypass input. 

TOP ENTRY GRAPHIC DISPLAY - Three solid-state relays drive the audible and visual indicators located in the graphic display.  The backlit green proceed graphic arrow is on when passage in the entry direction is authorized.  The backlit red graphic is on when passage in the entry direction is not authorized.  The red graphic repeatedly flashes after an invalid card is presented or when the lane is in alarm.  The sounder beeps one time after a valid entry card is presented and the sounder is on when the lane is in alarm.

TOP EXIT GRAPHIC DISPLAY - Three solid-state relays drive the audible and visual indicators located in the graphic display.  The backlit green proceed graphic arrow is on when passage in the exit direction is authorized.  The backlit red graphic is on when passage in the exit direction is not authorized.  The red graphic repeatedly flashes after an invalid card is presented or when the lane is in alarm.  The sounder beeps one time after a valid exit card is presented and the sounder is on when the lane is in alarm.

SIDE ENTRY & EXIT GRAPHIC DISPLAYS - Two solid-state relays drive the visual indicators located in the graphic display.  The backlit green arrows are on when the lane is open and ready for use.  The backlit red arrows are on when the lane is busy, and flash when the lane is in alarm.

SYSTEM OPERATION

The Optical Turnstile system cycles through a series of operating modes.  These operating modes determine the system outputs.

ARMED - The system will generate an alarm if a person passes through the sensing area.  The RED graphic on the top displays is on, and the GREEN graphic on the side displays is on.

BYPASS - The system will not generate an alarm if a person passes through the sensing area, and the bypass status relay is open.  The GREEN graphics on all displays are on.

VALID ENTRY ACCESS - The system allows one person to pass through the sensing area in the entry direction.  The GREEN graphic on the entry top display is on, the sounder on the entry top display beeps, and the RED graphic on the side displays is on.

VALID EXIT ACCESS - The system allows one person to pass through the sensing area in the exit direction.  The GREEN graphic on the exit top display is on, the sounder on the exit top display beeps, and the RED graphic on the side displays is on.

ALARM - This mode happens when a person passes through the sensing area without presenting a valid card, or if the IR beams become blocked.  The RED graphics on all displays flash and the sounders are on.

FREE EXITING - The system can be placed into a free exit mode. This mode disables alarms generated by passing through the sensing area in the exit direction.

SYSTEM ADJUSTMENTS

VALID ACCESS DELAY - DLY1 - This delay sets the duration of the access mode after a valid card is presented.  If a valid card is presented and nobody passes through the sensing area, then the system resets to ARMED mode at the end of this delay. Adj. 1 - 30 sec.

ALARM RESET DELAY - DLY2 - This delay sets the duration of an alarm.   If the sensing area is clear, then the system resets to ARMED mode at the end of this delay.  Adj. 1 - 30 sec.

TAILGATE SENSITIVITY - DLY3 - This adjustment allows field selection of the sensor sensitivity.  It is provided to prevent purses, umbrellas, and other objects from causing false alarms during normal passage.

SENSOR BLOCKED DELAY - DLY4 - This delay sets the length of time that the sensors can be blocked.  If the sensor area is not clear at the end of this delay, then the system latches into TAMPER ALARM.  Adj. 1 - 30 sec.>

SYSTEM OPTIONS

OPTIONAL SECOND SENSOR SET - Two additional infrared sensors may be used to expand the sensing area for higher security locations.  The location of both sets of sensors within the sensing area is determined by the physical location of the sensor housing.  (I.e. optical turnstile, pedestal, or doorway.)

LANE HOUSINGS - A variety of lane housings are available from Kouba & Associates.  Standard sizes are 60” x 38” x 8” stainless steel with rounded ends and brushed finish; 48” x 38” x 8” wood frame with laminate sides and Corian ® top (colors to meet installation requirements); and 12” x 38” x 8” aluminum with brushed finish (for space limited locations).  Other system packages may be configured to meet specific location requirements.

DISPLAY OPTIONS - Backlit LED graphic displays are provided with the basic optical turnstile package.  RED and GREEN arrows on the top and side displays communicate system status to persons at the sensing area.  Single RED and GREEN LED’s are provided with the doorway component package and are located on the doorway sensor housing.  Custom graphic displays can be provided to meet specific system requirements.

PROCESSING OPTIONS - The standard control unit is designed to provide a variety of operational features for directional counting and monitoring of people and objects passing through sensing areas.  Directional counting and monitoring without interfacing to an access control system allows up to four sensing areas to be connected to a single control unit.  The relay outputs can be re-defined to provide simple up/down counting outputs to a counting display system.  Contact Kouba & Associates for details.

RS485 COMMUNICATION - The MCIO board control unit has an on-board half duplex RS485 communication port that may be connected to other MCIO board control units or a Windows based PC system using a dynamic linked library developed for the MCIO board for networked monitoring and control.  Contact Kouba & Associates for details.

OPTICAL TURNSTILE SYSTEM
MCIO BOARD INPUT TERMINAL STRIP

Power, RS485 communication and 8 input contacts are connected to the input terminal strip.  Numbering is from left to right. Refer to the MCIO BOARD REFERENCE drawing.

MCIO BOARD OUTPUT TERMINAL STRIP

All twelve output relays are connected to the output terminal strip.   Numbering is from left to right.  Refer to the MCIO BOARD REFERENCE drawing.