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Anti- Passback

Anti- Passback. Controlling flow and occupancy. Overview. Named after ‘ passback ’ – passing back a card after going through a door / gate / turnstile FEATURES: Preventing misuse of cards Tracking and/or restricting the number of people in an area

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Anti- Passback

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  1. Anti-Passback Controlling flow and occupancy

  2. Overview • Named after ‘passback’ – passing back a card after going through a door / gate / turnstile • FEATURES: • Preventing misuse of cards • Tracking and/or restricting the number of people in an area • Triggering system events based on area occupancy • Interlocking of reader use based on the cardholder location

  3. Site Suitability • Determine Entry/Exit points • Must be controlled = No ‘sneaking’ in/out • Controller Grouping • GAPB areas can be used across multiple controllers • Preparedness for violations • Who will fix the problems? • Type of enforcement • Soft & timed options

  4. Site Suitability

  5. Misuse / Flow Control

  6. Misuse / Flow Control

  7. Track / Restrict • Maintains count of people in area • Two man rule (minimum occupancy) • Restrict maximum occupancy

  8. Event Triggers • Control system based on occupancy Example: Display area status by lights connected to relay 1. Create Internal Variable(s) for relay control

  9. Event Triggers, cont. 2. Assign Internal Variable to APB area with occupancy requirement

  10. Interlocking • Must enter an area before using readers in the area

  11. Interlocking, cont.

  12. Global Anti-Passback • Allows Anti-Passback to cover whole site no matter how many controllers. • Uses software in addition to hardware to track cardholders at all times Area 1 Area 2 Controller A Controller B 2. Then can Enter Area 2 1. Cardholder must Exit Area 1 Global Area ‘OUT’

  13. Area Control • Areas can be monitored and controlled in Alarm mode • Operator can control the area (open/close) can also move users or grant free pass

  14. Reset/Closing • Resetting status will put allow all users one ‘free pass’ • Next card read will determine area • Doesn’t empty an area • Users can be granted ‘free pass’ individually • Areas can be closedwhich will not allow entry—exit is still allowed • Controlled by Internal Variable • Can be manually closed in Alarm Mode

  15. Area Types • Each type of Global Area can have a separate type to simplify Mustering Hazardous - An area that should be evacuated in the case of an emergency on the site. Hazardous areas can contain Sub Areas as well as have Safe Areas linked to them. Normal - An area that is not subject to evacuation in case of an emergency. The standard type for all areas if mustering is not used in the system. Safe - An area, such as a muster point or safe haven, where cardholders should report in case of an emergency on-site.

  16. Mustering • The goal of mustering is to move all people out of hazardous areas and have an accurate count of who might remain

  17. Mustering Reports • Historical Mustering can show status of area at a point back in time

  18. What about…? • What type of Anti-passback control is suitable for large perimeters? • How to set up a suitable mustering plan? • What cases might make anti-passback unreliable?

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