I was invited to observe the installation of Securitron Maglock Digital Keypad and Touch Sense Bars on a pair of interior doors at a medical facility. To our advantage, the section of building into which the access control system was being installed was equipped with a drop ceiling. However, some of...
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I was invited to observe the installation of Securitron Maglock Digital Keypad and Touch Sense Bars on a pair of interior doors at a medical facility. To our advantage, the section of building into which the access control system was being installed was equipped with a drop ceiling. However, some of the walls were poured concrete, while other walls were stick construction with lathe and plaster.
The medical facility wanted to control access through a pair of outswinging doors that separated the reception/waiting area from the offices and surgery areas. The two wooden doors are mounted onto a hollow metal frame. On one side of the pair of doors are offices. On the other side are restrooms. However, in the secured area, within close proximity to the doors, is a supply storage/janitorial/electrical room, where the plug-in transformer, power supply and the DK26 circuit board are to be installed.
IMPORTANT: To simplify the installation, Securitron provided a point-to-point wiring diagram. In addition, they provide "live person" technical support when requested.
For this installation, two 1200 pound M68LS Securitron Magnalocks were installed. These automatic dual voltage (12/24VDC) M68 Series Magnalocks are bracket mounted and equipped with a built-in wire access chamber. The current draw is 300-325mA (including options) at 12VDC, and 150-175mA (including options) at 24VDC. For this installation, the M68 Series Magnalocks were ordered with LED and Senstat.
The Senstat option is a Form 'C' isolated contact that senses when the lock and the strike plate are in proper alignment. Proper alignment positively indicates that the door is secure. This option can be connected to the access control or an alarm system to notify when the door is not secure.
A Securitron DK-26 Digital Keypad System provides controlled access through the doors. The DK-26 is manufactured from cast stainless steel, and equipped with EPDM buttons. This two-component system incorporates a true 10-digit keypad with beeper and three LEDs and a separate CPU board in an enclosure. The DK-26 has a DPDT 5A maximum relay. The current draw is 160mA maximum at 12VDC, and 190mA maximum at 24VDC. For convenience, the keypad is equipped with a 16-foot 12 conductor, 22 gauge cable.
NOTE: The DK-26 is a tamper resistant keypad that, according to Securitron, will not provide access even if destroyed or removed from its mounting position.
There are two programming choices for the DK-26 Digital Keypad System; the single "Hard Code" and the Keypad Changeable. The "Hard Code" enables access using a single two- to seven-digit code. A "Hard Code" is normally used for traffic control applications where one code is used by all employees.
Keypad changeable programming enables access using up to 59 different, two- to seven-digit codes (expandable to 119). There are two types of keypad changeable programming codes: the Program Code and the User Codes. The Program Code acts as the password that adds, deletes, or changes User Codes. The Program code is five to seven digits in length. The User Codes are two to seven digits in length.
Since the DK-26 is designed to accept multiple codes of different lengths, the software will reject duplicate codes and code subsets. For example, there is a programmed User Code that is 1234567. If code 34567 is attempted to be programmed, the software will reject it.
To ensure accurate programming, always test the "Hard Code" or the Keypad Changeable Programming Codes, and the User Codes once programming has been completed. For this installation, the "Hard Code" or the User Codes should release the magnet. The Programming Codes should cause the yellow LED to flash rapidly, indicating the system is in programming mode.
Securitron Magnalock Corp. has developed more than 25 packaged electronic access control systems for controlling from one to three doors. These packaged electronic systems include the lock(s...