The ZKTeco K40 Pro biometric time attendance and access control terminal is engineered for straightforward integration within modern building management, physical security, and workforce administration infrastructures. Its multi-interface architecture allows it to function either as a networked endpoint or as an autonomous standalone device.
Access Control Peripheral and Hardware Interfacing
The K40 Pro features built-in wiring interfaces designed for simple door access control deployment in commercial, educational, and industrial environments:
- Third-Party Electric Door Locks: Equipped with dedicated physical relay connections to drive third-party access hardware, including electric strikes, magnetic locks (maglocks), and electronic drop bolts requiring standard relay signaling.
- Exit Buttons / RTE Devices: Features dedicated input terminals to connect standard request-to-exit (RTE) push buttons for egress management.
- Power Input Interface: Operates on standard DC 12V / 1.5A external direct current power infrastructure, supported by an internal integrated backup battery to maintain continuous operation during grid power dropouts.
Credential and Identification Compatibility
The unit supports multi-factor authentication paradigms, allowing flexible identification matching for diverse workplace policies:
- RFID Proximity Cards: Integrated with a standard 125kHz RFID card reader capable of enrolling and verifying up to 1,000 ID cards.
- Biometric Fingerprints: High-performance optical sensor supporting up to 1,000 biometric fingerprint templates with high-speed verification (≤0.5 seconds).
- PIN / Password & 9-Digit ID: Built-in T9 keypad input engine supporting up to 9-digit numeric User ID management and PIN-based authorization.
Network and Data Transfer Protocol Compatibility
The K40 Pro provides flexible data communication channels to ensure compatibility across diverse enterprise networking setups:
- TCP/IP Client Architecture: Direct connection to Local Area Networks (LAN) via standard RJ45 Ethernet communication for centralized log pulling, employee template synchronization, and real-time event reporting.
- USB Host Interface: Integrated USB Host port enabling offline environments to pull attendance records, download transaction logs (up to 100,000 log buffer), and upload user credential tables via standard USB flash drives.
- Self-Service Reports (SSR): Standalone SSR reporting tool allows automated creation and export of formatted attendance spreadsheets directly to USB storage without requiring client-side database middleware.
Management Software Ecosystem
For centralized, multi-terminal enterprise rollouts, the K40 Pro is fully compatible with ZKTeco management software packages:
- ZKTime.net: Seamless synchronization with ZKTime.net 3.0 desktop-based attendance management software for shift scheduling, overtime calculation, and payroll integration.
- WDMS / Cloud Platforms: Compatible with push-communication attendance systems and WDMS enterprise data collectors for multi-location monitoring.
- Embedded Feature Set: Built-in standard functions include Workcode selection, SMS messaging, Daylight Saving Time (DST) scheduling, direct Record Query on the 2.8-inch TFT display, Automatic Status Switch, and Timed Ring signaling.
Integration Specifications Reference
| System Component | Specification / Interface Standard | Compatibility Status |
|---|---|---|
| Network Protocol | TCP/IP Client (RJ45 Ethernet) | Native / Integrated |
| Offline Data Port | USB Host Port | Native / USB Flash Drive |
| Card Credential Standard | 125kHz RFID Proximity ID Cards | Standard (1,000 Cards) |
| Biometric Sensor | Optical Biometric (≤0.5s match) | Standard (1,000 Templates) |
| Lock Output Control | Relay Interface for 3rd Party Electric Locks | Direct Hardware Terminal |
| Egress Control | Exit Button Interface | Direct Hardware Terminal |
| Software Platforms | ZKTime.net 3.0 / WDMS / SSR Tool | Fully Compatible |
| Electrical Requirement | DC 12V, 1.5A Power Input | Standard DC Power Supply |
