eSSL S990 – Standalone RFID Time Attendance & Access Control System
The eSSL S990 is a reliable, high-performance standalone RFID time attendance and door access control terminal designed for growing businesses. Supporting up to 30,000 card users and 100,000 transaction logs, it delivers fast (≤1 second) card authentication, robust door control features, and seamless integration with eSSL‘s eTimeTrackLite software. Perfect for offices, factories, and institutions looking for a cost-effective, card‑based attendance and access management solution.
📌 What is the eSSL S990 RFID Time Attendance System?
The eSSL S990 is a powerful standalone RFID terminal that combines time attendance tracking with door access control. It is engineered for organizations that prioritize contactless, card‑based authentication. The device features a built‑in 125kHz EM proximity card reader, a high‑speed 32‑bit ARM microprocessor (800 MHz), and a vibrant 2.8‑inch TFT color display. The system is ideal for employees clocking in and out using their existing proximity cards, while simultaneously controlling access to a single door (or multiple doors when networked).
🔑 Core Capabilities – eSSL S990
Large‑scale user and event storage for medium to large enterprises. Maintain a complete attendance and access audit trail without frequent downloads.
High‑speed processing for fast, reliable card reading, ensuring minimal queuing during peak hours.
Clear, user‑friendly interface with 4×4 keypad and 5 function keys. Employees can view their last punch records directly on the device.
Standard TCP/IP (Ethernet), RS232/RS485 for industrial connectivity, and USB host/client for data backup. Optional Wi‑Fi and GPRS for remote installations.
Built‑in 12 V relay drives electric locks directly. Supports Wiegand input/output, door sensor, exit button, fire alarm, anti‑passback, and 50 time zones – no external controller required for single‑door installations.
Built‑in schedule bell, SMS support, DLST auto‑adjust, self‑service query, status switch, and work code tracking.
📊 Technical Specifications – eSSL S990
| Product Model | eSSL S990 | |
|---|---|---|
| User / Card Capacity | 30,000 users (cards) | |
| Transaction Storage | 100,000 events | |
| CPU / Speed | 32‑bit ARM microprocessor – 800 MHz | |
| FAR / FRR | ≤0.0001 % / ≤1 % | |
| Identification Speed | < 1 second | |
| Display | 2.8‑inch Color TFT | |
| Keypad | 4×4 membrane keypad (with 5 function keys) | |
| Built‑in Speaker / Bell | Mini speaker (schedule bell support) | |
| Communication (Standard) | TCP/IP, RS232, RS485 | |
| Communication (Optional) | Wi‑Fi, GPRS | |
| USB Ports | USB‑Host, USB‑Client | |
| Wiegand Interface | Wiegand 26-bit / 34-bit Input & Output | |
| Door Lock Relay | 12 V relay (supports EM lock, bolt lock, strike lock) | |
| Access Control I/O | Door sensor, exit button, fire alarm, door bell, anti‑passback | |
| Power Supply / Consumption | 12 V DC, 1.5 A | |
| Operating Temperature / Humidity | 0 °C to 45 °C / 20 % to 80 % RH (non‑condensing) | |
| Dimensions (L × W × H) | 210 mm × 157 mm × 40 mm | |
| Optional Battery | Yes (internal backup) |
Specifications derived from eSSL Security technical documentation and official product data.
🔒 Standalone Access Control – Complete Door Management
Directly connects to electric locks, magnetic locks, or strike locks. No external controller needed for single‑door installations.
Wiegand input allows connection of exit readers (KR500E, KR503, exit button) or slave readers; Wiegand output can feed card data to a central panel in multi‑door setups.
Prevent tailgating and enforce “one card, one entry“ rules. Assign door access schedules by hour, day, or user group – all built into the device.
Dedicated fire alarm input automatically releases the lock for safe evacuation. Door sensor reports forced‑open or held‑open alerts.
💻 eTimeTrackLite & Third‑Party ERP / HRMS Integration
The eSSL S990 works seamlessly with eTimeTrackLite (desktop and web versions), which supports MS Access, MS SQL, PostgreSQL, and Oracle databases. For developers and integrators, a comprehensive SDK is available to build custom applications or connect the device directly to third‑party ERP, HRMS, and payroll systems. Standard integrations are available for Spine, GreytHR, HROne, Zoho CRM, Candle, Saral, and Oracle. The device also supports ePush server (ADMS) for real‑time cloud data push, eliminating manual data transfers.
🏢 Where to Deploy the eSSL S990 Time Attendance System
Eliminate manual attendance registers. Employees use existing proximity cards for quick, touch‑free check‑in. Access control secures server rooms and executive floors.
Rugged card‑based system withstands dusty factory environments. Manage shift attendance for hundreds of workers and secure tool cribs or production zones.
Staff and student attendance tracking for schools, colleges, and universities. Secure labs, libraries, and administrative blocks with simple card access.
Pharmacy access, staff entry to restricted wards, and secure medical record rooms – all from a single device. Integrated fire alarm input meets safety codes.
Control entry to lift lobbies, clubhouses, and parking areas using resident ID cards. No biometric sensitivity concerns; fast, hygienic card reading.
Issue temporary credentials to subcontractors, enforce attendance for billing, and secure material storage zones.
🌟 Why Choose the eSSL S990 RFID Time Attendance System?
If your organization already uses proximity cards for IDs, the S990 is the most economical way to automate attendance tracking without fingerprint hardware.
No PC, no server, no subscription. The S990 works as a complete unit – connect a lock, power it on, and configure user cards directly from the keypad.
TCP/IP, RS485, Wi‑Fi, and GPRS options ensure you can network the device with your existing infrastructure – or connect to the cloud using ePush.
Export data directly to your payroll, HR, or ERP platform using eTimeTrackLite or the device‘s SDK. Reduce manual data entry and payroll errors.