The LED screen will display the firmware version and run a self-diagnostic check.
The Knox KeySecure 3b is a rugged, dependable device. By following these specific installation, electrical, and programming instructions, your security infrastructure will benefit from decades of Knox product quality and UL-listed security. Keep your confidential manuals secure, and always limit access to authorized personnel only.
Connect to a switched 12V DC positive (+) source that receives power only when the vehicle ignition switch is in the "ON" or "ACC" position. This activates the keypad backlighting. knox keysecure 3b installation manual hot
Run an 18 AWG marine-grade wire from the vehicle battery or primary distribution block to the unit.
Before beginning the installation, verify that all components are present in the kit: Knox KeySecure 3B unit Mounting bracket and security hardware Power and data wiring harness Knox master key retention hook User management software access card Pre-Installation Requirements The LED screen will display the firmware version
Inspect the wiring harness for signs of brittle insulation, chafing, or thermal degradation caused by engine compartment heat.
Enter the factory default authorization code (refer to your agency's administrator documentation) to test the solenoid. Keep your confidential manuals secure, and always limit
The Knox KeySecure 3b is a physical security device designed for controlled access to master keys. Always comply with local fire codes, vehicle safety regulations, and departmental policies when installing this product. The manufacturer assumes no liability for improper installation, unauthorized modifications, or use of the device in a manner inconsistent with its intended purpose.
The status light should transition to a solid green, indicating the key is secured. Testing Key Release
