Page 88 - Security Today, November 2017

SECURITY ENTRANCES
ties and fitness centers. They are a low security solution for crowd management. Exception: when budgets are constrained, you might find them in office lobbies with matching finishes such as Corian or marble to “dress them up.” Here’s what security integrators should know about tripod turnstiles:
• Designed to withstand high traffic, abusive conditions.
• Exterior use okay, if covered.
• High throughput, handling 30 persons per minute in one direction. • Lack of sensors can lead to easy defeat—turnstiles can be crawled
under or jumped over without alarm/ notification to guard staff. • Low capital cost, but high annual operating cost due to necessary
24/7 guard supervision.
• Other than counting who entered or exited, limited metrics capa-
bilities available.
DETERRENCE: FULL-HEIGHT TURNSTILES
Full height turnstiles are a true deterrent to casual infiltration at- tempts because it is difficult-to-impossible to go over or under them. They are a rugged solution for perimeter fence lines, stadiums, metro stations, industrial plants, distribution centers, and parking garages. Upon activation, the rotor rotates 120 degrees to allow only one user to pass through, and for this reason they also work well as an exit- only solution.
They are typically unmanned, but if they are used in interior lob- bies leading directly into higher security areas they should be super- vised because two small people could potentially squeeze through on a single authorization, which is known as “piggybacking.” There are no sensors or alarms to alert when this happens, and due to these limitations, a full height turnstile serves only as a deterrent. Here are some other things to note about full height turnstiles.
• Low capital cost, low annual operating cost (assuming no supervision) • Guard supervision not typical (unless directly leading into higher
security areas).
• Moderate throughput, handling 18 persons per minute in one
direction
• Only limited metrics can be retrieved – no sensors or alarms if
defeated
DETECTION: OPTICAL TURNSTILES
The goal of detection is to track when tailgating happens and notify security personnel so they can respond quickly. Optical turnstiles sat- isfy both the goals of deterrence and detection due to their ability to sense movement during passage and alarm if tailgating occurs.
They are typically installed in many public-sector buildings in- cluding Fortune 1000 companies, Class A office buildings, universi- ties, high-rise apartments and corporate call centers. Most models available today offer sliding or swinging barriers and they can be waist high or full height. A very common assumption in the security industry is that optical turnstiles with barriers prevent unauthorized entry and can be unmanned, which is not true.
Once the barriers are open, a second user could slip through, or, in the case of a wide lane to allow for disabled use, two people could walk through side by side. Most of the time, an alarm will sound, but there is the possibility of a false acceptance. Therefore, the cost of 24/7 supervision must be factored into the security budget. Here are some
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other points to make note.
• Moderate capital cost, but high annual operating cost due to nec-
essary 24/7 guard supervision.
• Sensors detect tailgating and sound an alarm for post-tailgating
reaction, but turnstiles can still be defeated.
• Moderate metrics capabilities available (for example, number of
times tailgating occurred, passback rejections).
• High throughput, handling up to 30 persons per minute in one
direction.
• If traffic is bi-directional, for example during lunchtime, through-
put is reduced per direction (people have to take turns).
PREVENTION:
SECURITY REVOLVING DOORS AND PORTALS The goal of prevention is to make it close to impossible to tailgate into a facility. Security revolving doors and mantrap portals accomplish this job, due to their full height and working principle.
The entry solution of choice for Fortune 1000 companies, or any company subject to mandatory regulations (e.g. HIPAA), they are commonly used at employee-only entrances, and sensitive applica- tions such as government buildings, data centers, and any facility that requires two-factor authentication. Security revolving doors and portals do not require supervision because they are very dif- ficult to defeat; sensors in the ceiling prevent tailgating (following in a trailing compartment). Optional piggybacking detection systems are also available (preventing two people in the same compartment from entering).
The benefits of using an unmanned door are compelling: guard staff can be reduced or reallocated and, depending on the hourly cost of a guard, an ROI can be achieved in as short a time span as nine months. Here’s some more information security integrators should know about security revolving doors and portals.
• High capital cost, low annual operating cost due to no required
guard supervision.
• Sophisticated metrics capabilities available, allowing the end user
to prove the value of their security spend.
• Security revolving doors = 20 persons per minute, simultaneously
in two directions; Security portals = six persons per minute in one
direction.
• Ideal for multi-factor authentication and use of biometric devices. • Bullet-resistant glass can be incorporated for an even higher level
of security.
You should know now that when a customer says the word turn- stile they could be thinking of anything from a low security, crowd control solution to a high security, tailgating prevention entrance.
A goal-based approach to a discovery conversation will break down this “turnstile” barrier and lead to clarity on both sides of the table and deployment of the best long-term solution for the end user and ultimately for installer as well. Once the goal and the type of entrance is determined, the manufacturer can assist further with integration needs, customizations, installation requirements, techni- cal training, details about metrics, integration tips, local codes and ordinances.
Greg Schreiber is the senior vice president of sales at Boon Edam. 1117 | DEALER STRATEGIES