Do we eat our own cooking? How the experts approach physical security. (Part One)

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By Neal Bellamy, IT Director at Kenton Brothers

How does a security integrator design their own security systems?

Kenton Brothers: Eating our own cookingMost people are familiar with the phrase, “Do you eat your own cooking?” This is a casual way to ask a company if they implement the same products and services they’re selling their customers in their own business.

I think that most companies do a far better job of providing their services to their customers better than they do for themselves for lots of reasons. But the most common reason is that they’re too busy doing a great job for their customers. They just don’t have time, because the customer comes first… right?

Over the next couple of months, we have the opportunity to do it differently. Since we are moving into a new office, we can design our systems from the ground up. It’s an opportunity to showcase what’s possible in a real world application. Today, we’re going to be looking at an intrusion system, also known as a burglar alarm.Kenton Brothers: New Building Sketch

Our new space is a much larger building. (Yay!) We will sublease space to at least one tenant, but maybe more. There are office, warehouse and common spaces with lots of windows and overhead doors.

The main challenges we need to address are:

  • How do we keep the tenant space operating like it has its own system and provide for future expansion
  • How do we protect the different areas of the building?
  • How do we do it as cost effectively as possible?

The first issue can be solved by many different alarm manufactures, most of the larger systems have a feature called areas, or partitions.

Areas allow a keypad and related sensors to act as a self contained alarm system. It’s also possible to have a “Common” area that disarms with the first related area and arms with the last related area. Honeywell provides a good explanation of a common area here (PDF). We will have multiple areas defined that can monitor our own space, the tenant space and any common space that’s shared. We just need to make sure that the panel we choose will have enough partitions for future expansion.

Next on the list to tackle is how to protect the different areas.

We will certainly need to place door contacts on all the doors into the various spaces, but the type of contact and how they’re wired is important as well. To maintain the aesthetics of the personnel doors, we’ll use recessed contacts that are only visible when a door is open. They also come in different colors to closely match the color of the door frame.

We can help protect damage of the overhead door contacts by providing rail mount door contacts, which keep the contact higher and out of the way. One example is an interlogix 2300 series. Motion detectors come in all shapes and sizes, but using a motion detector with multiple technologies keeps the false alarms at a minimum. Bosch, for instance, has a whole line of Tri-tech motion sensors. We’ll also use glass break detectors for the larger glass areas. Glass break detectors provide more reliability than motion detectors alone.

Just as important as the sensors that we use, is how they’re wired.

Most alarm panels supervise the detectors that are connected to it. This supervision circuit monitors the wire that is connected by adding a small resistor to the end of the wire. If the resistor can be measured, all is good, if the resistor is missing, or the wire is not connected at all, it will send an alarm. No method is foolproof, but it adds another layer of security to the alarm system and will alert us if a wire is damaged before we find out the hard way.

As with any system that we design and install, we want the best bang for our buck.

We want to maintain the sensor quality because it would be worthless to have multiple false alarms or to miss an important event. However, there are good ways to save money on an installation.

One way is to wire efficiently. Traditional or smaller alarm panels need to have a separate wire from the sensor to the alarm panel or input module. However, several systems allow loops of wire to be installed with many sensors on each loop. Since the new facility is much larger, having loops will save over 1,000 feet of wire and the labor to install it.

Older and smaller panels also used to require a POTS (Plain old telephone system) line to report to the monitoring stations. Not only is the reporting slower, but who has a telephone line anymore? We will use the IP network to communicate with a central station and pocket the $20 – $30 month that a phone line would have cost.

Last, while not a cost-saving measure, but something we will get for free by choosing the right system, is integration with access control. Since the Access control system and intrusion system are on the network, they can talk to each other. With integration, we can see the status of the areas through the access control system, we can turn off the alarm through the access control system when they enter the building, and we can prevent access control from unlocking side doors when the alarm is armed. All of the integration is designed to give more visibility into the system and to reduce false alarms in the intrusion system.

We’re all excited about the new building. Some are excited about more space, some are excited about fresh paint, but I’m excited to showcase our capabilities and to redesign the security systems from the ground up. Next month, we’ll talk about the network layout that all the systems use as a foundation and a the video system design.

Getting Back to School Safely

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By Will Zurcher, Installation Manager at Kenton Brothers

ClassroomSecuring the front entrance of any facility can be challenging. Securing a school’s front entrance is possibly the most challenging project a company like ours can be asked to provide.

Schools present unique obstacles.

  • Parents don’t want to drop their children off in the morning to a building that resembles a prison. It makes sense to make sure people on the inside are safe from external threats. But we have to remember that a facility that is harder to get into is also harder to get out of.
  • In the design phase, we have to always keep in mind that the majority of the users are going to be children and visitors. And they aren’t necessarily familiar with the facility, so the systems put in place have to be easy for them to use.
  • There are situations when the systems we put in place will need to be bypassed to accommodate large groups of people to pass freely in and out of the building.

Realistically, with the budgets that schools are faced with, creating a 100% secure front entrance is often not possible.

When starting the design process, we must first work on funneling all of the traffic to the front entrance in order to control access to the building. This can be done with fencing to deter trespassing and limit access to secondary entrances. Cameras monitor perimeter entry points and notify staff of any unknown traffic around the facility. The cameras can double as monitoring tools for recesses and transition periods. Door “position” switches can also be installed to notify staff of any unlocked entry points.

With these options in place, any unauthorized people would need to proceed to the office in order to gain entry into the building.

Recently, front entrances have been designed or remodeled to have a double door style entrance which allows visitors free entrance into a secured vestibule area. This allows front office staff to clearly identify visitors.

In the vestibule area, there’s a second set of access controlled doors that lead into the school. There’s also a single access control door that leads into the office. These doors will be outfitted with locking mechanisms that are “fail secure”. This means that if the school loses power, the doors will remain locked.

Outside the office entry door there is an intercom system for the visitor to communicate with the office staff. If no threat is detected, the staff has a button to release the door lock, allowing the visitor entry into the office to sign in. This process allows the office staff to keep track of everyone in the building. It also allows the office staff to notify the authorities of any threats with a duress / panic button while securely delaying the threat long enough for the authorities to get there.

Kenton Brothers understands all of these situations. We help schools implement easy-to-use and reliable solutions while working with the staff to put procedures in place for emergency situations. Give us a call to learn more.