LTS LTK02X 2-Door RS-485 Access Control Expander Module

LTS LTK02X 2-Door RS-485 Access Control Expander Module

The LTS LTK02X is a 2-door expansion module designed to increase the door capacity of an existing LTS Platinum access control system. Rather than functioning as a stand-alone controller, the LTK02X connects back to a compatible LTS main door controller over an RS-485 data link, letting installers add two additional doors to a site without deploying a second full controller and enclosure. Running on a simple 12V DC supply, it is a cost-effective way to scale access control across larger buildings, multi-tenant sites, or facilities that are being fitted out in stages.

Key Features

• 2-Door Expansion: Adds control and monitoring for two extra doors to a compatible LTS access control host panel.
• RS-485 Communication: Uses an industry-standard RS-485 link for reliable, long-distance communication back to the main controller.
• 12V DC Operation: Runs on a straightforward 12V DC power input, simplifying integration with existing access control power supplies.
• Scalable Architecture: Ideal for expanding door count on larger sites without needing a separate network address or full standalone controller.
• Compact Design: Space-efficient module suitable for mounting inside a shared enclosure alongside the host controller.
• Wiegand Reader Support: Works with Wiegand-compatible card readers and keypads on the added doors, in line with the LTS access control ecosystem.
• Centralised Management: Doors added via the expander are managed through the same LTS access control software and user database as the host panel.
• Cost-Effective Scaling: Cheaper per-door cost than deploying additional full controllers when only a couple of extra doors are needed.

Typical Applications

The LTK02X is best suited to installers and integrators who need to grow an LTS-based access control deployment beyond the door count of a single controller. Common scenarios include adding a rear fire exit and loading dock to an existing 2-door or 4-door controller, extending coverage into a newly leased tenancy, or staging a rollout across a commercial building, warehouse, or education campus where door requirements grow over time. Because it shares the RS-485 backbone with the host controller, it keeps cabling simple and avoids duplicating network configuration for every additional door.

What's in the Box

• LTS LTK02X 2-Door Expander Module
• Mounting hardware
• Wiring terminal blocks
• Quick installation reference

Frequently Asked Questions

Q: Does the LTK02X work as a stand-alone controller?
A: No. It is designed as an expander that must be connected via RS-485 to a compatible LTS access control host panel; it does not operate independently.

Q: What power supply does the LTK02X need?
A: It operates on a 12V DC supply, which can typically be shared from the same power source feeding the host controller and door hardware, subject to total load requirements.

Q: How many doors can I add with one LTK02X?
A: Each LTK02X module adds capacity for two additional doors to your existing LTS access control system.