Interlocking Lock Systems
GA576-2018 Compliant Anti-Tailgating Door Control for Banks, Prisons & Data Centers
When one door is open, all other doors are mechanically and electronically locked — preventing unauthorized tailgating. Compliant with GA576-2018 national standard for interlocking security doors. Stepper motor drive, auto bolt correction, and multiple unlock methods (fingerprint, IC card, password, key).
- Interlocking: when any door opens, all others lock (including key override)
- Anti-tailgating with duress alarm (silent panic code)
- Auto-relock after door closes (6s delay)
- TCP/IP networking with video intercom option (KZQ6)
- Corridor lighting control on door open
- Emergency simultaneous unlock (dual-press indoor button)
- SUS304 stainless steel solid bolt, ≥24mm extension
System Architecture
KZQ5 — Networked Interlocking Controller
GA576-2018 compliant. TCP/IP networking, video surveillance integration, voice alarm, corridor lighting control, remote management via workstation.
KZQ6 — Visual Intercom Interlocking Controller
Same as KZQ5 plus built-in visual intercom. No separate UPS required (external UPS). Supports video doorbell and two-way communication.
Controller Comparison
| Feature | KZQ5 | KZQ6 | 3-Wire Controller |
|---|---|---|---|
| Standard | GA576-2018 | GA576-2018 | — |
| Networking | TCP/IP | TCP/IP | Single-wire (RS485) |
| Visual Intercom | No | Yes | No |
| Video Surveillance | Yes (NVR) | Yes (NVR) | No |
| Voice Alarm | Yes | Yes | LED indicator only |
| Corridor Lighting | Yes (auto 1min) | Yes (auto 1min) | No |
| UPS | Built-in | External | — |
| Unlock Methods | IC/fingerprint/password/remote/key | Same + intercom | Electric + key |
| Application | Banks, prisons, data centers | Same + high-security VIP areas | Simple dual-door interlock |
Embedded Interlocking Locks
Drop-in replacement for traditional mortise locks (30×240mm standard cutout). Stepper motor drive, auto bolt correction, SUS304 solid stainless steel bolt.
LDS16 — Standard Embedded Interlocking Lock
| Operating Voltage | DC 12V – 15V |
|---|---|
| Operating Current | < 900mA |
| Standby Current | ≤ 30mA |
| Lock Current | < 400mA |
| Bolt Extension | ≥ 24mm |
| Bolt Material | SUS304 Solid Stainless Steel |
| Drive | Stepper Motor (metal gear) |
| Standard | GA576-2018 + GA/T73-2015 Class C |
| Unlock Methods | Key, IC card, password, fingerprint (model dependent) |
Standard 30×240mm mortise cutout — direct replacement for traditional anti-theft locks. No additional door modification required. Auto bolt correction prevents mis-alignment.
Model Selection Guide
| Model | Bolt Locating | Key | IC Card | Password | Fingerprint | Embedded Install | Dead-bolt Support | Bolt Material | Bolt Extension |
|---|---|---|---|---|---|---|---|---|---|
| LDS16/16P | Yes | Yes | — | — | — | Yes | — | SUS304 Solid Stainless | ≥24mm |
| LDS(16/16P)KC | Yes | Yes | Yes | — | — | Yes | Yes | ≥24mm | |
| LDS(16/16P)KCP | Yes | Yes | Yes | Yes | — | Yes | — | ≥24mm | |
| LDS(16/16P)KCPF | Yes | Yes | Yes | Yes | Yes | Yes | — | ≥24mm | |
| LDS16Y | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ≥30mm |
All LDS16 models: DC12V–15V, standby ≤30mA, lock current <400mA. LDS16Y (new model): DC12V–15V, <300mA operating, ≤40mA standby, bolt ≥30mm, compliant with GA526-2010 (prison door standard).
LDS16Y — New Generation (Enhanced Security)
- Standard mortise cutout — direct replacement
- Auto bolt locating with deadbolt support
- Bolt extension ≥30mm (meets GA526-2010 prison door standard)
- Indoor handle press = instant unlock
- Multiple unlock: key / IC card / password / fingerprint
- GA576-2018 + GA/T73-2015 Class C compliant
- DC 12V–15V, <300mA operating, ≤40mA standby
3-Wire Interlocking Locks (LDS2/LDS8/LDS9)
| Spec | LDS2-ST | LDS8 | LDS9 (Embedded) |
|---|---|---|---|
| Bolt Extension | ≥20mm | ≥20mm | ≥20mm |
| Voltage | DC 12V – 24V | DC 12V – 24V | DC 12V – 24V |
| Standby Current | ≤20mA | ≤20mA | ≤20mA |
| Lock Power | ≤7.8W | ≤7.8W | ≤7.8W |
| Lock Delay | 6s | 6s | 6s |
| Mount Type | Surface | Surface | Embedded |
Applications
Banking & Finance
ATM areas, vault corridors, VIP rooms. GA576-2018 mandatory for new bank construction. TCP/IP remote monitoring from security center.
Prisons & Detention
Cell blocks, visitor areas, sally ports. LDS16Y meets GA526-2010 prison door standard. Duress alarm with silent panic code.
Data Centers & Labs
Server rooms, clean rooms, bio-safety labs. Prevent unauthorized access through airlock-style dual-door interlocking.
Specify Your Interlocking System
Tell us the number of doors, lock model, controller type, and unlock method requirements. We provide complete system design.