Mustering Tutorial

Author: Brian Rhodes, Published on Apr 01, 2013

Access control can be used for more than just securing buildings. Among these powerful 'other' functions is mustering, which immediately accounts who is where in a building. However, a system has to be designed properly and carefully to use this. In this note, we look at mustering, and what it takes to implement in a typical system.

Mustering's Two Approaches

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Comments (10)

Does this mean that an individual would have to scan out of an area in the event of an emergency? If so that seems like an awful idea. I'd hate to think that where I worked expected me to scan out of an area while I was running away from a life threatening situation.

I agree, what if you cant scan out at the time of emergency?

One of the biggest challenges that access has when used to Muster is you CANNOT lock people in. Bottom line, in most occupancies, you cannot prevent people from exiting. (With Jails, Prisons, High Security areas, and some Care Facilities being the exception)

'Reading In' to a building to unlock a door is one thing, but the door frequently must provide unabated egress. This translates into difficulty forcing people to log an exit when they leave: a problem not easily solved.

To answer some of the questions above, that is the point of the mustering, in case of a emergency you would not want or be expected to card read out. One of the reasons of card read out is just to let you know who has left and who is still in the building.

By having a mustering station you can have e everyone that didn't scan out scan their card at the mustering station.

Could an alternate or addition to this be a RTE button for use in case of Emergency?

Policy would dictate to "Card Read Out" during normal operation. In order to avoid "lock ins" a RTE button for emergencies only would be added. This would have to be implemented in policy and practice to avoid employees using the emergency exit button on normal occassions.

Obviously this will add cost to the project as well as provide policy challenges...of course then their is the Fire Marshall as well.

we install a doortronix pull station (similar to fire pull only blue in color) resettable by key only above the rex or reader to get out during emergency we use the dpdt contacts one set for maglock and the other for emergency alarm activated input to the alarm when pulled

Brian, Does a smartcard offer RFID? If so a passway reader could be set to account for those that exit creating your mustering list.

If not an RFID solution could be implemented to 'automatically' account for those that exit through a 'read' passage.

Our challenge to implementing ACS mustering is two-fold:

1) Single entry point without hardware enforced anti-tailgating/piggy-backing policy. (Electronic turnstiles as shown above would solved that issue.

2) Many perimeter emergency exit doors and multiple outdoor mustering points.

Solutions are possible, but would be involved. And for mustering to be effective, you want 100% accuracy.

How difficult would it be to Frankenstein a portable reader to bring to a disater scene to use as a mustering reader. Edge Reader, power source, means of connecting to network wirelessly thrugh VLAN or , cell phone?

That is a common approach for remoting mustering points. Example:

Schlage's (Allegion) WPR-400 about ~$850 streetprice.

This particular product is 900 MHz proprietary wireless, but other products offer WiFi or 3G Cell SIM Cards (Usually appliance-based, like a PDA)

Several members have reported using this Schlage unit with good results, a member in a previous Access class used it for Mustering.

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