The Biomax N-WL20 standalone biometric time attendance terminal is designed for rapid deployment across commercial offices, retail locations, and educational institutes without requiring dedicated structured Ethernet cabling. Proper physical positioning, electrical input compliance, and communication provisioning ensure continuous system reliability and rapid user authentication.
Physical Mounting and Site Preparation
The unit features a compact chassis measuring 180 mm in length, 130 mm in height, and 35 mm in depth, with a total packaged shipping weight of 0.8 kg. When selecting an installation location, ensure the site adheres to the specified operating ambient temperature range of 0°C to 50°C.
Mount the device on an interior vertical surface at an ergonomic height to allow comfortable interaction with both the optical sensor and the 2.4-inch TFT color LCD display (320 x 240 pixel resolution). Positioning should allow users clear visibility of on-screen visual prompts and unobstructed audibility of the integrated 16-bit Hi-Fi voice and sound indication system, which provides transaction feedback in English.
Power Supply Requirements
The N-WL20 runs on an embedded Linux operating platform and requires a stable external electrical power input:
- Operating Voltage: 5V DC
- Current Rating: 1A regulated power supply
Ensure that the 5V DC line maintains consistent voltage delivery. Operating the terminal within standard 5V DC / 1A limits protects the internal processing board and optical sensor components from power irregularities.
Wireless Network (Wi-Fi) Configuration
Because the N-WL20 eliminates the need for physical LAN drops, network communication relies on integrated Wi-Fi connectivity. During system commissioning, network parameters can be provisioned directly via the device keypad and display:
- Connect the terminal directly to the facility's local 802.11 wireless router or an active mobile Wi-Fi hotspot.
- Verify that the terminal is assigned an accessible network address to communicate with Biomax Desktop software, Web-based platforms, Cloud management systems, or Employee Self Service mobile applications.
- For enterprises developing custom payroll and human resource systems, configure network access endpoints to interface with the Biomax Software Development Kit (SDK).
Offline Operation and USB Deployment
For installations where active Wi-Fi networks are unavailable or subject to coverage loss, the terminal supports fully standalone, offline deployment:
- Attendance data is logged directly to onboard non-volatile memory, which retains up to 150,000 transaction records.
- Manual log fetching is accomplished using a standard USB storage drive inserted directly into the terminal's built-in USB communication port.
- Self-Service Recorder (SSR) attendance reporting can be enabled as an optional reporting feature to generate offline attendance logs without external server connectivity.
Biometric Sensor Commissioning and User Enrollment
Once power and network interfaces are established, administrators can enroll user credentials up to the device limits of 1,000 users, 1,000 fingerprint templates, and 1,000 password PINs. The integrated 500 DPI optical biometric scanner is engineered to achieve a False Acceptance Rate (FAR) of 0.00001% and a False Rejection Rate (FRR) of 0.001%, with verification completed in 1 second or less (
