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Assa DK-26 manual PROBLEM-- Door opens on a short code that wasn’t programmed

Models: DK-26

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Rev. A.2, 10/03

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entry will be ignored. Finally note that if terminals SRC and UCD are connected, all User codes will be disabled. If terminals SRC and HCD are connected, the Hard code will be disabled.

PROBLEM-- Beeper doesn’t sound while the unit otherwise functions

Note that the beeper could have been deliberately silenced by the unit having been sent a special command. Even on a new unit, this could have happened by factory error. Attempt to restore the beeper by putting the unit into program mode and entering 7-2. You should see the two red flash confirmation. If the beeper still doesn’t work, the problem is either a wiring mistake, a defective beeper or a fault on the CPU board with the output that drives the beeper. Check that the keypad blue wire (this controls the beeper) is connected into terminal BLU. If it is, next remove it from the BLU terminal and briefly touch it to terminal DC-. If the beeper sounds, the problem is with the beeper driver on the CPU board and the CPU board will have to be replaced. If the beeper does not sound, the problem is with the beeper itself in the keypad or with the internal beeper wiring within the keypad. The beeper is the only part of the keypad which is repairable. This is because the beeper is physically located in a chamber at the bottom of the keypad. If it was sealed in the keypad, the sound level would not be adequate. Look at the beeper in its chamber to confirm that the wires look OK. You can then return the keypad to the factory for beeper replacement or you can replace the beeper in the field (this requires soldering). The part number for a replacement beeper from Securitron is 050-10600.

PROBLEM-- One or more of the LED’s do not work while the unit otherwise functions

This is either a wiring mistake, a failed LED in the keypad or a fault on the CPU board with the output that drives the LED. Each LED is operated by the wire that bears the LED’s color. So, for example, if the green LED is the one that is not working, first check to see that the green keypad wire is correctly connected to terminal GRN. . If it is, next remove it from the GRN terminal and briefly touch it to terminal DC-. If the green LED comes on, the problem is with the driver on the CPU board and the CPU board will have to be replaced. If the LED does not come on, the problem is with the LED in the keypad or with the internal wiring within the keypad. The keypad will have to be replaced to restore operation of the LED.

PROBLEM-- Error signal (one second long red pulse) received while programming

Anytime you receive an error signal, retry the programming operation. It’s easy to mis-hit one key. If the error signal persists, it is almost always a misunderstanding of programming procedures rather than a fault with the unit. A product fault that impaired the operation of the microprocessor would generally prevent it from giving you the error signal.

When programming the hard code, you directly enter the code once you are in hard programming mode (slow yellow flash). Remember you must never pause for more than five seconds while pressing keys. The only way to get an error signal while programming the hard code is to enter an illegal one digit code.

When in program mode, the most common error is to forget to enter the two digit memory slot prefix when attempting to program a code. Valid prefixes are 00-59 and if this step is forgotten in an attempt to enter the code directly, there are a lot of sequences that will create an error signal. For example, any sequence that starts with 6 will be rejected. 8-5 is also illegal. Or if you entered just 9-2, the unit would read 9 as an attempt to change the door open time and then reject a single digit new time.

Another source of the error signal would be an illegal attempt to enter a program code of less than five digits (after prefix 0-0). Finally, while programming multiple codes, you will get an error signal if a code you’re attempting to program is a subset of one already in memory or a duplicate (see Section 4.4).

PROBLEM-- Door opens on a short code that wasn’t programmed

This can arise through an unnoticed programming error. Suppose you want to program 4-5-1-2. But when the unit is in program mode, you forget to put in the two digit memory slot prefix but just directly enter 4-5-1-2. The microprocessor will accept this sequence and interpret it as code 1-2 in memory slot 45. You test the code by re- entering 4-5-1-2 and the door opens because the sequence includes the real code, 1-2. Later it will be noticed that the door is opening on 1-2 as this is such a simple sequence that it will be entered. When you have any evidence that unknown codes (particularly short ones) are in the unit, it is best to erase all User codes and reprogram.

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Assa DK-26 manual PROBLEM-- Door opens on a short code that wasn’t programmed
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DK-26 specifications

The Assa DK-26 is a state-of-the-art electronic locking system designed to provide enhanced security for a variety of applications, including commercial, institutional, and residential environments. This locking solution is characterized by its robust construction, advanced technology, and user-friendly features, making it a popular choice among security professionals.

One of the standout features of the Assa DK-26 is its innovative design, which combines mechanical and electronic security elements. The locking mechanism utilizes a high-security cylinder, ensuring that unauthorized access is thwarted. This cylinder is key-operated, allowing for traditional key entry while also supporting electronic access control, offering flexibility to users.

The DK-26 is equipped with advanced electronic technologies that enhance its functionality. One of the key technologies integrated into this system is RFID (Radio Frequency Identification). This allows users to gain access using key fobs or cards that contain embedded RFID chips. The system can be programmed to allow or deny access based on time schedules, occupancy status, or individual user credentials, providing a high level of control over who can enter a facility.

Another notable characteristic of the Assa DK-26 is its ability to integrate with various security management systems. This compatibility allows for centralized control and monitoring of multiple locking devices, enabling security personnel to efficiently manage access across an entire building or campus. Additionally, the DK-26 features real-time audit trails, which log all access attempts and can be reviewed for security audits or investigations.

The DK-26 is designed for durability and resilience, featuring weather-resistant materials that make it suitable for both interior and exterior applications. Its sleek and modern aesthetic adds to the appeal for businesses looking to maintain a professional appearance while ensuring optimal security.

Installation of the Assa DK-26 is straightforward, as it can be retrofitted to existing door hardware without requiring extensive modifications. This ease of installation, combined with its reliable performance, makes the DK-26 an intelligent choice for anyone looking to upgrade their locking systems.

In summary, the Assa DK-26 electronic locking system combines high-security mechanical features with advanced electronic technologies, making it a versatile and effective solution for securing a diverse range of environments. Its RFID access capabilities, integration with security management systems, and robust construction make it a standout choice in modern security solutions.