David Bolton No Cylinder Override on a Fail Safe Electrified Mortise Lock: What That Means When Power Goes Out What This Article Covers and Who It Helps When a specifier or contractor selects a fail safe electrified mortise lockset with both levers locked and no cylinder override, they are making a deliberate ... access control electrified mortise locks fail safe hardware institutional hardware life safety Sep 14, 2026
David Bolton Locking Down the Server Room: How to Spec Door Hardware for Data Center Security What This Guide Covers -- and Who It Is For Server rooms and data center enclosures have hardware requirements that sit at the intersection of physical security, life safety code, and continuous-uptim... access control commercial door hardware data center electrified hardware server room security Aug 30, 2026
David Bolton Your Phone Is the Key: What to Know Before Specifying Mobile Credentials and Reader Compatibility What This Article Covers -- and Who It Helps More facilities are moving away from plastic keycards and toward smartphone-based access control. If you are a contractor quoting an electrified opening pa... BLE readers access control commercial door hardware electrified hardware mobile credentials Aug 25, 2026
David Bolton Mantrap Installations: How to Specify the Right Hardware for a Two-Door Security Vestibule What This Guide Covers and Who It Is For A mantrap, also called a security vestibule or airlock entry, is a controlled access passage that uses two doors in sequence to prevent tailgating and unauthor... access control commercial door hardware electrified hardware exit devices security vestibule Aug 20, 2026
David Bolton Cylindrical or Mortise Lockset: The Decision Criteria That Actually Drive the Right Choice Why This Choice Matters Before the Door Gets Prepped Specifiers, commercial contractors, and facility managers face this question on nearly every project: cylindrical lockset or mortise? The answer is... access control commercial door hardware cylindrical locks locksets mortise locks Aug 15, 2026
David Bolton Adding Card Access to an Existing Mortise Lock: What Actually Has to Change at the Door What This Article Covers and Who It Helps Facility managers, security integrators, and commercial hardware specifiers frequently face the same challenge: a building already has solid-performing mortis... access control credential readers electrified hardware mortise locks retrofit Aug 8, 2026
David Bolton Concealed Power Transfer on Doors With Closers: Routing Wires When the Frame Head Is Already Occupied The Problem Nobody Plans for Until the Closer Template Goes Down This article is for commercial hardware contractors, access control integrators, school facilities teams, and specifiers who need to tr... access control door closers electrified hardware fire-rated openings power transfer Jul 29, 2026
David Bolton Electrified Exit Device Trim: How the Outside Lever Controls Ingress Without Blocking Egress What This Article Covers and Who It Helps Electrified exit device trim is the outside lever, handle, or pull mounted on the secure side of a panic bar that is controlled by an access system rather tha... access control electrified hardware exit devices fire-rated door hardware panic hardware Jul 24, 2026 Our Blog
David Bolton What Happens to Your Access Control System When the Power Goes Out Why Backup Power Is a Core Part of Any Access Control Design This article explains how battery backup works in commercial access control systems, what happens to electrified door hardware when buildin... access control battery backup electrified hardware life safety power supply Jul 23, 2026 Our Blog
David Bolton Access Level Scheduling Explained: How Time-Based Door Permissions Change What Your Hardware Needs to Do What This Article Covers and Who It Helps Access level scheduling is the practice of assigning different door permissions to different credential holders based on the time of day, day of week, or cale... access control commercial door hardware door scheduling electrified hardware time-based access Jul 15, 2026 Our Blog
David Bolton Biometric Readers in High-Security Door Applications: What to Know Before You Specify Biometric readers are showing up on more hardware schedules across government facilities, data centers, healthcare wings, and school secure-access zones. But specifying one correctly means understandi... access control biometric readers door hardware specification electrified locks high-security hardware Jul 8, 2026 Our Blog
David Bolton Door Held Open Alarms: How to Stop Propped Doors Before They Become a Security or Safety Problem What This Article Covers Door held open alarms detect when a door stays open past a set time limit and trigger an audible alert before a propped door becomes a security breach, fire hazard, or code vi... access control door held open alarm door prop alarm fire door compliance life safety hardware Jul 6, 2026 Our Blog
