Smart Lock Connection
Our Smart Lock Connection (SLC) is a mortise lock with controlled handles and euro profile compatibility. It features direct RS485 communication with your management software, a status LED, and a built-in DICCA.
It can be configured with controlled entry and free exit, or with both entry and exit controlled.
What sets it apart.
Innovative, practical and reliable features for enhanced security.
RGB LED
An RGB LED integrated into the lock indicates its status in real time. On Secure models, up to 256 colours can be displayed.
Built-in DICCA*
The Intermediate Access Control Cut-off Device is directly integrated into the lock. Controlled by the fire safety system (SSI), or by a break glass unit if needed, it instantly releases access in case of emergency — without additional equipment.
Secure Element*
The Secure Element enhances the lock's cryptographic protection for environments where security cannot be compromised.
RS485 / OSDP
On Secure models, all commands are transmitted exclusively via the OSDP protocol over a secure RS485 bus, preventing intrusion attempts through unprotected inputs.
*Depending on model.
Choose your level of security
Four models, one architecture. Each model builds on the previous and adds new capabilities.
B1
Offices, residential buildings
Entry-level model. Lock status feedback via RS485 OSDP in read-only mode.
- Status information: handle, deadbolt, latch bolt, cylinder key use, tamper loop
- RGB LED — blue (lock powered)
- RS485 OSDP — monitoring only
B2
Hotels, schools, hospitals
Adds DICCA, controlled directly by the fire safety system or via a break glass unit to release access in case of alarm.
- Built-in DICCA — fire safety release controlled by SSI
- RGB LED 3 colours: blue (powered), green (unlock command), red (fire alarm)
S1
Banks, headquarters, industrial sites
Active RS485 OSDP communication: all commands pass through the secure bus. Adds buzzer and alarm contacts.
- Secure RS485 OSDP communication
- 256-colour RGB LED
- Buzzer
- Independent alarm contacts for intrusion system
S2
Data centres, defence, critical infrastructure
Adds the Secure Element. Recommended for sensitive sites.
- Integrated Secure Element
Built to last.
Certified and tested against the most demanding criteria: mechanical durability, temperature range, and forced-entry resistance.
Service life : > 200,000 opening / closing cycles
Operating current : Max. 600 mA (12 VDC) — 300 mA (24 VDC)
Bolt resistance (push force) : 1,000 daN
Operating temperature : −20 °C to +60 °C
Diagram & references
Exploded view of the lock
Lock dimensions
| Reference | Backset | Centre distance |
|---|---|---|
| SLC-5070-XX* | 50 mm | 70 mm |
| SLC-5572-XX* | 55 mm | 72 mm |
| SLC-6072-XX* | 60 mm | 72 mm |
| SLC-6572-XX* | 65 mm | 72 mm |
* XX = model (B1, B2, S1 or S2)
Documentation
Downloads
Smart Lock Connection product documentation
Frequently asked questions
Onyx Access distributes exclusively through integrators and distributors.
Yes. You can upgrade from a B1/B2 model to an S1/S2 model without replacing the lock. Contact your sales representative to plan the upgrade.
Smart Lock Connection is designed for installation on wooden doors.
For any technical enquiry, contact us at support@onyx-access.com.
The warranty covers 2 years.
A tailored quote for your project
Tell us how many doors you need to equip. We will get back to you with a solution tailored to your site, no obligation.