Physical Mounting & Environmental Considerations
The ZKTeco K40 Pro is a compact biometric terminal engineered for wall-mounted installation in commercial offices, educational facilities, and industrial environments. The unit features dimensions of 184 mm (Length) x 136 mm (Width) x 37.6 mm (Thickness) and a net unit weight of 0.32 kg. When planning physical placement, mount the terminal at a standard ergonomic height to allow comfortable viewing of the 2.8-inch TFT screen display and easy access to the biometric fingerprint sensor and T9 keypad input.
Install the device within indoor ambient conditions matching its specified operating temperature range of 0°C to 45°C and operating humidity levels between 20% and 80% (non-condensing). Avoid exposure to direct condensation or external thermal extremes to maintain an optimal biometric verification speed of ≤0.5 seconds.
Power Supply & Backup Architecture
The terminal requires a dedicated DC 12V / 1.5A regulated power supply. The internal electronics include an integrated built-in backup battery designed to maintain uninterrupted operation, data logging, and access control functionality during unexpected AC mains power outages. Ensure primary power cabling is securely terminated to avoid voltage drops across the circuit.
Access Control & Peripheral Wiring
For standalone access control functionality, the K40 Pro is equipped with dedicated physical relay interfaces to connect third-party security hardware:
- Electric Lock Interface: Onboard relay connections for switching third-party electric locks directly upon successful user authentication (fingerprint, 125kHz RFID card, or password).
- Exit Button Interface: Dedicated input terminals to connect standard push-to-exit request buttons for egress management.
Communication & Network Topologies
The K40 Pro supports two primary operational topologies for attendance data synchronization and user profile management:
- TCP/IP Network Integration: Connect the terminal directly to a local area network (LAN) via the Ethernet TCP/IP client interface. This configuration facilitates continuous, centralized communication with management software suites such as ZKTime.net and WDMS for real-time transaction logging across its 100,000 record capacity.
- Offline Standalone Deployment: In locations without network infrastructure, the terminal operates entirely standalone. Attendance logs and employee data can be downloaded directly to a USB flash drive via the built-in USB Host port using the integrated Self-Service Reports (SSR) function.
Installation Specification Summary
| Parameter | Specification |
|---|---|
| Mounting Type | Wall Mount |
| Dimensions (L x W x T) | 184 x 136 x 37.6 mm |
| Net Weight | 0.32 kg |
| Power Input | DC 12V / 1.5A |
| Power Backup | Integrated Built-in Backup Battery |
| Operating Temperature | 0°C to 45°C |
| Operating Humidity | 20% – 80% (Non-condensing) |
| Communication Ports | TCP/IP Client, USB Host |
| Access Control Interface | 3rd Party Electric Lock, Exit Button |
