eSSL K990 – RFID Time Attendance & Access Control System
The eSSL K990 is a high‑performance RFID proximity card terminal designed for time attendance tracking and standalone door access control. Supporting up to 40,000 card users and 800,000 transaction logs, it delivers reliable, contactless identification for large workforces. Its 3.5‑inch colour TFT display, Wiegand I/O, built‑in relay, and optional ADMS cloud push make it the ideal solution for enterprises that need a robust, all‑in‑one card‑based system without fingerprint complexity.
📌 Product Overview – RFID‑Based Attendance & Access Control
The eSSL K990 is a pure RFID proximity card terminal. It does **not** include a fingerprint sensor. Employees present their registered RFID card (125 kHz EM or 13.56 MHz Mifare/HID) to the reader, and the device verifies the card ID against its internal database. Upon authorisation, it records the punch for time attendance and may simultaneously trigger the lock relay to open the door if configured for access control. This makes it ideal for environments where fingerprint use is undesirable (e.g., hygiene concerns, wet/dirty hands, or large transient workforces).
The K990 runs on a 32‑bit high‑speed microprocessor (800 MHz) and features a 3.5‑inch colour TFT display, LED indicators, and a piezo buzzer. It supports multiple authentication modes: card only, card + PIN, card + photo ID, or PIN only. The built‑in Wiegand input/output allows integration with external readers (e.g., exit readers), while the internal relay can directly control an electric lock, strike, or magnetic lock without an external controller.
📊 Technical Specifications – eSSL K990
| Authentication Technology | RFID proximity card (125 kHz EM or 13.56 MHz Mifare / HID Prox, optional) |
|---|---|
| User / Card Capacity | Up to 40,000 cards |
| Transaction Log Capacity | 800,000 events |
| Display | 3.5‑inch colour TFT screen (320×240) |
| Keypad | 24‑key capacitive touch keypad (for PIN entry and navigation) |
| Communication (Standard) | TCP/IP (Ethernet), RS232, RS485, USB host & client |
| Communication (Optional) | Wi‑Fi, GPRS | Cloud Data Push | ADMS (Automatic Data Master Server) – built‑in, optional activation |
| Wiegand Interface | Wiegand 26‑bit / 34‑bit input and output |
| Relay Output | 12 V DC relay (for electric lock, door strike, magnetic lock) |
| Access Control I/O | Door sensor, exit button, fire alarm input, door bell, anti‑passback |
| Time Zones | 50 programmable time zones |
| Power Supply | DC 12 V, 3 A (recommended) |
| Operating Temperature | 0 °C to +45 °C |
🔑 Core Features – eSSL K990 RFID Terminal
Large user and event storage suitable for mid‑sized to large enterprises with high employee turnover and heavy transaction volumes.
Card only, card + PIN, card + photo verification, or PIN only. Choose the security level that fits each work area.
Automatic Data Master Server: after configuration, the K990 pushes attendance logs directly to a cloud server in real time. No PC middleware or static IP address required. Data syncs to your HR dashboard instantly.
Connect an external exit reader (e.g., KR500, KR503, or other Wiegand reader) to authenticate users from the inside. Also can output card data for slave terminals.
Built‑in relay directly drives an electric lock. Supports door sensor (force‑open alert), exit button, fire alarm (fail‑safe open), anti‑passback, and 50 custom time zones.
TCP/IP for network integration, RS232/RS485 for industrial controllers, USB for data export, plus optional Wi-Fi or GPRS for wireless deployments.
🔒 Advanced Access Control & Integration
Flexible schedules: define when each door can be accessed. Combine with user groups to restrict access by department or shift.
Prevents card sharing or tailgating. Enforces that a user must exit before re‑entering, strengthening physical perimeter security.
Dedicated fire alarm input. When triggered, the K990 automatically releases the lock to comply with emergency evacuation requirements.
Reports “door forced open” or “door held open too long” events directly to the access control log.
🌟 Why Choose the eSSL K990 for Your Organisation?
Perfect for food processing, healthcare, manufacturing, and any environment where repeated fingerprint contact is not desired. Cards are touched only by the user.
800,000 logs and 40,000 card capacity accommodate high‑frequency use and long‑term data retention without needing frequent downloads.
With ADMS, cloud synchronisation is automatic. No more exporting logs manually or running server‑side middleware. HR can view live attendance from anywhere.
Works with eTimeTrackLite, eSSL BioCV security, and third‑party ERP/HRMS platforms (Spine, GreytHR, HROne, Zoho, Candle, Saral, Oracle) via standard data export or API.
🏢 Where to Deploy the eSSL K990
Dust, humidity, and dirt do not affect RFID card reading. Track shift attendance and secure restricted zones with anti‑passback.
RFID cards provide hygienic, contactless authentication for staff entrances, pharmacy doors, and administrative areas.
Large card capacity supports thousands of employees. ADMS cloud push enables real‑time attendance tracking across multiple locations.
Card‑based attendance for staff and access control for labs, libraries, and administrative blocks.
Rugged design tolerates extreme conditions; cards can be issued to temporary workers and easily deactivated when contracts end.
Secure perimeter doors and restricted areas using multi‑factor (card + PIN) and fire alarm integration.
🔌 Software Support & Third‑Party Integration
The eSSL K990 is fully compatible with eTimeTrackLite desktop and web‑based attendance software. Through the ADMS cloud feature, it can also push data directly to custom cloud platforms. For local deployments, the device supports standard data export (CSV/Excel) through the software. Integration with popular ERP, HRMS, and payroll platforms (Spine, GreytHR, HROne, Zoho CRM, Candle, Saral, Oracle) is easily achievable using our API or attendance export module.