BIO-S90A
- Install brand-new professional batteries: Use exclusively brand-new 1.5V AAA alkaline batteries of INDUSTRIAL grade (e.g., Varta Industrial Pro, Duracell Procell / Industrial). Never mix used cells or use rechargeable batteries.
- Program and test all credentials prior to mounting: Please ensure that the lock operates properly, and that all cards (Manager Card and User Cards) are configured, tested, and verified at least 3 times on an open cabinet door before physically securing the lock body and latching the furniture!
- Understand the Reset consequences before pressing RESET: Before pressing the Reset button on the lock body, carefully read Section 7 to understand the factory reset behavior (all cards will be deleted and the lock restores its factory default Public Mode)!
Table of Contents
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6. Operations & Mode Configuration
- 6.1 Private Mode (Home, Office, Assigned Lockers)
- • Registering New Manager Card Manager
- • Registering New User Card(s) (Up to 30) User
- • Registering Delete Card (Batch Clear)
- 6.2 Public Mode (Gyms, Spa, Shared Lockers)
- • Registering New Manager Card Manager
- • Registering New User Card User
- • Registering Delete Card (Clear Locker)
- 6.3 Limited Public Mode (Daytime Open)
- • Registering New Manager Card Manager
- • Registering New User Card User
- • Registering Delete Card
- 7. Reset Lock (Restore Factory Defaults / Public Mode)
- 8. Essential Operational Guidelines & Best Practices
1. Relative Products
The BIO-S90A lock body is engineered primarily for standalone, 100% concealed installation inside wooden or composite furniture. In addition, the lock body features an integrated expansion interface compatible with optional external wired panels:
Touch & Keypad Panels
Compatible with external touch code panels (B panel, C panel, D panel, E panel, 64RP panel, 64RP-FM panel) for dual PIN + Card access.
Fingerprint & Reader Panels
Compatible with external biometric fingerprint and proximity sensor panels (F panel Ø30mm, G panel 65mm, 64RF panel Ø64mm, 36SF panel 36mm, 51SF / 51SF-FM panel 51mm).
2. Hardware Overview & Components
Standard Set Contents (Included in Each Package):
-
Electronic RFID Cabinet Lock: BIO-S90A Lock Body + Dedicated Push-Pin Strike Plate
※ Standard factory configuration: each RFID cabinet lock is pre-programmed out-of-the-box to operate in Private Mode. -
Two Pre-Configured Proximity RFID Credentials (13.56 MHz Mifare):
- 1× Manager Proximity Card: Dedicated administrative programming key
- 1× User Proximity Card: Operational credential for daily unlocking
- Complete Fasteners Set: Complete set of hardened mounting screws (4 screws for lock body + 3 screws for strike plate) for wood, MDF, and composite cabinetry.
2.1 Lock Body Specification
Material: High-impact ABS polymer shell.
Dimensions: 76 × 76 × 29.5 mm (compact, symmetrical square profile).
Available Enclosure Colors: White, Grey, Black.
2.2 Motorized Bevel Latch & Push-Pin Strike Plate
The BIO-S90A utilizes an advanced motorized mechanical latch system specifically developed for hinged cabinet doors:
- Motorized Spring Bevel Latch: The angled latch bolt automatically retracts into the body upon valid RFID credential verification. After 5 seconds, the motor extends the latch bolt back out. Locking occurs by simply closing/slamming the door against the spring bevel.
- Dedicated Strike Plate with Integrated Ejector Pin: Dimensions: 71 mm (L) × 38 mm (W) × 11.5 mm (H) with a 5.75 mm base step. The strike plate collar incorporates an integrated spring-loaded steel pin (Ø4 mm). As the door closes, the pin compresses against the carcass edge. When the latch bolt retracts, the spring pin automatically pops the door open 1–2 cm, completely eliminating the need for handles or external push-to-open (tip-on) bumpers!
2.3 Proximity Credentials (Cards, Fobs, Bands)
Diverse form factors of 13.56 MHz Mifare RFID credentials supported: waterproof silicone wristbands, robust ABS key fobs (teardrop/oval), ISO rectangular cards, and adhesive tokens.
2.4 Fasteners & Screws Specification
Corrosion-resistant, hardened installation screws provided for diverse cabinet substrates: 4 screws for securing the lock body firmly to the cabinet interior, and 3 screws for securing the strike plate (2 oblong adjustment slots + 1 locking center screw).
2.5 External Power Interface & 6V USB-C Power Supply
Equipped with an integrated emergency backup port. Compatible with external battery boxes and emergency power adaptors to supply temporary 6V power if internal batteries are completely exhausted.
Optional Continuous Power Supply: In addition to standard battery operation, every BIO-S90A invisible cabinet lock can be continuously powered via an optional external 6VDC switching power supply with a 1m USB Type-C cable (available separately as an accessory).
* Note: The external 6V USB-C switching power supply is not included in the standard set.
To guarantee 100% operational reliability and prevent electronic latch failure through 25mm timber panels, only and exclusively install brand-new, fresh alkaline batteries from a professional manufacturer – INDUSTRIAL Grade (e.g., Varta Industrial Pro, Duracell Procell / Industrial, Energizer Industrial).
STRICTLY PROHIBITED:
• NO rechargeable NiMH batteries (1.2V): Total voltage of 4× 1.2V is only 4.8V, which immediately triggers premature low-voltage alarms.
• NO zinc-carbon or low-cost supermarket consumer batteries: They lack the high peak discharge current (up to 200mA) required to reliably actuate the motorized latch bolt.
• NO mixing of old and new batteries: Always replace all 4 batteries simultaneously with fresh cells from the same production batch.
3. Product Installation Dimensions
Lock Body Dimensions
- Outer dimensions: 76 mm × 76 mm × 29.5 mm.
- Mounting screw holes: 4 corner fixing holes for direct interior cabinet mounting.
- Motorized bevel latch bolt extension: engineered for standard furniture reveals.
Push-Pin Strike Plate Dimensions
- Outer dimensions: 71 mm (L) × 38 mm (W) × 11.5 mm (H).
- Base offset step: 5.75 mm.
- Mounting screw holes: 3 fixing points — 2 oblong adjustment slots with 53 mm center pitch (14 mm adjustment throw) + 1 bottom center fixing hole.
- Integrated ejector pin: Ø4 mm spring steel pin projecting from the strike collar.
4. Installation Drawings & Assembly
The BIO-S90A lock body mounts flush against the internal cabinet partition wall, shelf, or top divider using 4× screws. The dedicated strike plate mounts onto the inner face of the opening door using 3× screws. First, loosely fit the screws in the 2 oblong adjustment slots (53 mm pitch) to align the strike aperture with the motorized spring bevel latch. Verify that the spring ejector pin compresses smoothly against the cabinet frame when the door is pushed closed. Finally, tighten the center fixing screw to lock the strike plate rigidly into place.
5. Operational Parameters & Master Matrix
5.1 Technical Parameters
| Housing Construction | High-impact ABS for lock body shell; Acrylic & PC for optional external panels |
| Current Consumption | Static standby consumption: < 100 μA Dynamic motorized operation: < 200 mA |
| Operating Voltage & Battery Lifetime |
DC 6V (4 × AAA 1.5V Alkaline INDUSTRIAL Grade) Estimated operational battery life: 6–12 months (depending on daily usage frequency and battery quality). Continuous power optional: 6VDC switching power supply with 1m USB-C cable. |
| Environmental Tolerance | Operating temperature: -15°C to +65°C Operating humidity: 10% to 90% RH (non-condensing) |
| Electrostatic Protection (ESD) | Air discharge: 15 kV | Direct contact discharge: 8 kV |
5.2 Master Alarm & Notification Signal Matrix
The BIO-S90A integrates an intelligent microcontroller, an acoustic sounder, and a multi-state LED indicator to communicate system statuses, security lockdowns, and battery thresholds:
| Status / Trigger Event | Optical (LED) | Acoustic (Buzzer) | System State & Required Action |
|---|---|---|---|
| Valid Card Presented | Green (1× flash) | 1× short di | Authorized unlock. Motorized spring bevel latch retracts; push-pin pops door open. |
| Unauthorized Card | Red (2× flashes) | 2× short di di | Access denied. Credential is not registered in system memory. |
| Low Voltage Warning (< 4.5V) | Blue (steady flash) | Double beep di di on each unlock | LOW BATTERY ALERT (< 4.5V): Acoustic & visual alert on every unlock. Lock remains functional for ~1,000 cycles, but fresh INDUSTRIAL AAA batteries must be installed immediately. |
| Critical Voltage Failsafe (< 4.0V) | Blue (continuous) | Periodic warning tone | ANTI-ENTRAPMENT FAILSAFE: Below 4.0V, the latch bolt retracts and PREVENTS RE-LOCKING until batteries are replaced. Eliminates locked-out cabinets. |
| Door Left Open Warning (Door Ajar Alert) (> 30s) | Off | Continuous alert for 10 seconds | Cabinet Door Left Open Alarm: Sounds in Private Mode if the cabinet door remains unlatched/open for over 30 seconds. Toggle with Button 1 + 2. |
| Anti-Tamper Lockout (5× wrong attempts) | Red (continuous) | 5× rapid beeps di di di di di | SECURITY LOCKDOWN: 5 consecutive invalid presentations disable the reader for 5 minutes. Present Manager Card to override immediately. |
| Factory Reset Executed | Green (2× flashes) | Triple beep di di di | All memory cleared. Lock restores factory default Public Mode (unlatched state). |
5.3 Mode-Dependent Credential Roles Matrix
Important Operational Principle: The functional behavior, access privileges, and unlocking logic of each RFID credential depend strictly on the active operational mode (Private, Public, or Limited Public Mode) configured on the lock:
| Credential Type | Private Mode (Sec. 6.1) | Public Mode (Sec. 6.2) | Limited Public Mode (Sec. 6.3) | Capacity |
|---|---|---|---|---|
|
Manager Card (Administrative Master) |
Programming Only Authorizes enrollment of User Cards. Does not unlock cabinet directly. |
Emergency Master Key Allows facility staff to immediately unlock and override an occupied locker. |
Programming Only Authorizes enrollment of User Cards and replacement credentials. |
Up to 10 cards |
|
User Card (Daily Operational Key) |
Routine Access Pre-enrolled cards. Retracts bevel bolt; door pops open; bolt re-extends after 5s. |
Dynamic Guest Key Any guest Mifare card locks the door and becomes the sole key to unlock. |
Daytime Latch Pre-enrolled cards. Unlocks door (stays open); present again to re-lock. |
Up to 30 cards (Dynamic in Public) |
|
Delete Card (Memory Clearing Key) |
Batch Clear Single presentation permanently revokes all 30 enrolled User Cards. |
Locker Release Single presentation clears current occupant's card, freeing locker for next guest. |
Batch Clear Single presentation revokes all enrolled User Cards simultaneously. |
Up to 10 cards |
|
Master Card (Hardware Override) |
Universal Emergency Override: Hardware-level emergency unlock credential across installations. | 1 per installation | ||
Integrated Button Functions on Lock Body:
- Button 1: Enrolls Manager Cards and User Cards.
- Button 2: Enrolls Delete Cards.
- Button 3: Cycles working modes (Private → Public → Limited Public).
- Button 4: Toggles Single Key Mode or Double Key Mode (two credentials required).
- Reset Button: Reverts the lock to factory default settings.
6. Operations & Mode Configuration
Operating Modes Comparison – BIO-S90A
The BIO-S90A electronic furniture lock can operate in one of three dedicated modes. The table below outlines key functional differences, latch behaviors, and credential requirements:
| Feature / Parameter | Private Mode | Public Mode | Limited Public Mode |
|---|---|---|---|
| Factory Configuration | ★ FACTORY DEFAULT Pre-configured to Private Mode by default. | Optional Switched via Button 3. | Optional Switched via Button 3. |
| Default Rest State | Locked (Closed) | Unlocked (Open) | Locked (Closed) |
| User Card Programming | Required (up to 30 enrolled cards stored in memory). | Not required (accepts any compatible Mifare card on locking). | Required (up to 30 enrolled cards stored in memory). |
| Unlocking Procedure | Present enrolled card to retract bevel latch (door pops open 1-2 cm, latch relocks after 5s). | Present registered session card to retract latch and clear memory. | Present enrolled card to retract latch — stays permanently unlocked. |
| Locking Procedure | Push door closed (spring bevel snaps into strike plate automatically, no card needed). | Push door closed + present card to enroll credential and lock. | Push door closed + re-present card to lock at end of shift/session. |
| Typical Applications | Personal desks, home cabinets, assigned employee lockers, offices. | Gyms, fitness clubs, swimming pools, spas, shared day lockers. | Shared tool cribs, departmental archives accessed frequently during work hours. |
6.1.1 Mode Overview: The lock remains latched under Private Mode. Only enrolled User Cards can unlock the cabinet. Upon presentation of an authorized card, the motorized spring bevel latch retracts, and the strike plate's spring-loaded push pin automatically pops the cabinet door open 1–2 cm. The latch bolt re-extends after 5 seconds, allowing the door to be latched simply by pushing it shut against the bevel.
6.1.2 Set Lock into Private Mode:
🛡️ 6.1.3 Registering New Manager Card (Programming Authority)
In Private Mode, the Manager Card is used strictly to authorize the enrollment of new User Cards.
🔑 6.1.4 Registering New User Card(s) (Up to 30 User Credentials)
User Cards are the daily credentials used to unlock the cabinet.
6.1.5 How to Use User Card:
6.1.6 Registering Delete Card (Batch Clear All Users):
Presenting the Delete Card immediately revokes all 30 registered User Cards simultaneously.
6.2.1 Mode Overview: The lock remains in an unlatched state under Public Mode. Any customer can access a free locker. Presenting any Mifare credential extends the motorized latch bolt to lock the cabinet, and only that identical credential will unlock it. Once unlocked, the spring pin pops the door open and the locker is instantly released for the next guest.
6.2.2 Set Lock into Public Mode:
🛡️ 6.2.3 Registering New Manager Card (Emergency Master Key)
In Public Mode, the Manager Card acts as an emergency master override allowing facility staff to unlock the locker if a guest misplaces their credential.
🔑 6.2.4 Registering New User Card (Automatic Guest Locking)
No pre-enrollment required! Under Public Mode, any unregistered Mifare card or wristband presented by a guest will automatically engage the latch bolt to lock the door. That exact same credential is then required to unlock it.
6.2.5 How to Use (Locking & Unlocking Workflow):
6.2.6 Registering Delete Card (Clear Current Locker):
Presenting the Delete Card immediately frees the locker by clearing the active guest card's assignment.
6.3.1 Mode Overview: The lock begins in a latched state. Once unlocked by an authorized user, it remains continuously unlatched throughout the working day. When the employee is ready to lock up, they present their user card again to extend the latch bolt and push the door closed.
6.3.2 Set Lock into Limited Public Mode:
🛡️ 6.3.3 Registering New Manager Card
🔑 6.3.4 Registering New User Card
6.3.5 How to Use User Card:
6.3.6 Registering Delete Card: Press Button “2” for 2s → present card → prompts “di”. Presentation clears user memory.
7. Reset Lock (Restore Factory Defaults / Public Mode)
When the Reset button is pressed and held for 2 seconds:
- ALL CREDENTIALS ARE PERMANENTLY DELETED: Every registered User Card, Manager Card, and Delete Card is erased from internal non-volatile memory. All previously programmed cards become completely invalid.
- LOCK RESTORES FACTORY DEFAULT PUBLIC MODE: The invisible RFID lock immediately restores its standard factory state (Public Mode – default unlatched state). If you wish to use the lock in Private Mode, you must explicitly program it into Private Mode as outlined in Section 6.1.2 before registering daily user credentials.
8. Essential Operational Guidelines & Best Practices
- When the indicator light flashes in blue, it indicates battery capacity is critically low (< 4.5V). Replace with fresh INDUSTRIAL alkaline batteries immediately.
- System memory capacity per lock: 10 pcs Manager Cards, 10 pcs Delete Cards, and 30 pcs User Cards.
- Always install brand-new, premium professional batteries of the INDUSTRIAL grade (e.g. Varta Industrial Pro, Duracell Procell). Expected battery lifetime: 6–12 months. Never mix old and new cells.
- Verify full lock actuation, ensure battery installation, and enroll all credentials BEFORE physically mounting the lock into the furniture!
- Integrated Push-Pin Strike Plate Alignment: The strike plate features an integrated spring-loaded ejector pin (Ø4 mm). Make sure the pin makes solid contact with the cabinet body when closed and compresses smoothly. When the RFID credential is read, this pin immediately repels the door panel by 1–2 cm, creating an automatic gap to open the door without external handles or tip-on hardware.