Transcript
Inter-Locking Doors / ManTraps Application Note
Customers such as Banks and Casinos with an extended need for controlling access often require a number of doors to be grouped in systems with pre-defined rules for entry and exit. In many cases these rules relate to Inter-Locking Doors, where the release and opening of a door is dependent on the status of other doors within the same system (ManTraps) Most systems solve the problem of interlocking doors by adding custom-designed hardware/software. HI SEC Internationals Access Control System includes the functionality within the standard features. Principle of ManTraps
Access Methods
The ManTrap allows for a group of 2 and up to 30 doors in one interlocking system. Each Access Control Terminal can be a part of 2 sets of Inter-Locking Systems, where only one door can open at any given time.
Automatic Control
The functionality is controlled by a number of Terminals defined in the system as Key-Holders. An Access Control Terminal that has been defined as a Key-Holder Terminal will hold the key necessary to release any door within the Inter-Locking System. Other Terminals in the same system will need to borrow the key in order to release/open its associated door. As only one key is available in each Inter-Locking System, only one door can be released at any given point of time. Access Control Terminals programmed to work in an InterLocking System must be on the same System Bus or Sub-Bus.
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Full automatic control requires no additional equipment. The Access Control Terminals, with a built-in reader and its associated Exit pushbuttons will control the door release based on the access card rights and the status of the Inter-Locking System. Manual Control Combined automatic and manual control can be achieved with a number of I/O-Units connected to the individual Access Control Terminals. The door open request can be activated either by reading the access card or by activating a Call button connected to one of the I/O-Units input. An Output from an I/O-Unit located in the Control Room activates a Door Release request to alert the Security Guard.
The Security Guard can then activate a Door Release button connected to one of the inputs on the same I/O-Unit. Even though the Door Release is now manually activated, the door will only release if all other doors in the same Inter-Locking System are closed. Manual Control w/ AIR-Module Alternatively, the ManTrap can be controlled manually via a PC. Upon receiving a Door-ReleaseRequest, a pop-up menu with a live image from a connected camera and an image from the Security Management Systems card database will be displayed for the Security Guard. The door can now be released with a mouse-click on the Open button on the screen. Controlled by the Access Control Terminals, the door will only release when all other doors in the same Inter-Locking System are closed.
January 2002
Inter-Locking Doors / ManTraps Installation Example Interlocking Rules Inter Lock 1: When A is released, block B When B is released, block A Inter Lock 2: When B is released, block C and D When C is released, block B and D When D is released, block B and C Inter Lock 3: When D is released, block E When E is released, block D
Example of 5 Door ManTrap with 3 overlapping sets of interlocking doors.
Programming Key Holders:
Key Reference:
Terminal B Terminal D
Terminal A need key(s) from B Terminal B need key(s) from B + D Terminal C need key(s) from B + D Terminal D need key(s) from B + D Terminal E need key(s) from D
Automatic Control
Manual Control
Manual Control with AIR-Module
Regardless of the Access Method, the programming of the Access Control Terminals is the identical.
The manual control of Mantraps in casinos, for example, will often be carried out by a Security Guard in a Control Room. In most cases, the Security Guard will be seated behind a console with many other functions such a video switchers, inter-com and others.
In installations where the manual control of ManTraps takes place via a PC, the pop-up menu as displayed below will be the Security Guards user interface. If requests are received from more doors simultaneously, these will be listed on the screen, and the Security Guard can deal with them, one at a time.
To program the interlocking functions the Key Holders within each interlocking system must be defined. Secondly, the participants of each Inter-Locking System must be set up.
Access Methods Programming
The interlocking control to ensure that only one door at a time within the same Inter-Locking System can be released is handled by the Access Control Terminals software. Each Terminal can be programmed to require one or two keys from other Terminals before its associated door can be released. Most interlocking systems are built up with an Access Control Terminal located at the entrance. Exit is normally requested by pressing an Exit pushbutton located inside the ManTrap.
In these installations, interfacing to the security console is often required, as illustrated below. Access Door
S-ART
Request Released Rejected
Control Room S-ART
Alternatively, an Access Control Terminal can be located at both the ManTraps entrance and exit.
Traffic Light Function In some installations, a traffic light will be installed near all access doors participating in ManTraps. A red light indicated that one of the doors in the ManTrap is released or open so that the door in question is temporary blocked. A green lamp indicates that all doors in the ManTrap are closed. The traffic light is controlled via an S-ART output.
Alert Open Reject
HI SEC International undertakes a continuous and intensive product development to ensure the highest possible standards. As a result, these specifications are subject to change without notice.
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