Aiphone LEM-1DLS Access Sentry Set

Aiphone LEM-1DLS Access Sentry Set

Overview

The Aiphone LEM-1DLS is a complete access control and intercom solution designed for small to mid-sized entry management applications. This bundled system combines a 1-call master station with integrated door release capability, a surface-mount door station, and an electric door release unit into a ready-to-deploy package. The LEM-1DLS supports push-to-talk communication and provides N/O dry contact output for integration with external access control systems and electric locks.

Key Features

• Integrated Door Release Control: N/O dry contact rated at 30V AC/DC, 1A for reliable lock activation
• Push-to-Talk Communication: Simplex operation enables straightforward visitor screening and intercom functionality
• Complete System Bundle: Includes LEM-1DL master station, LE-D surface-mount door station, and PT-1210N electric release unit
• Flexible Wiring: Supports Aiphone #822202 (22AWG) or #821802 (18AWG) 2-conductor shielded cable for door station to master station connections
• Surface-Mount Door Station: LE-D design accommodates various installation environments
• Scalable Architecture: Compatible with additional Aiphone intercom and access control components for multi-unit deployments

Integration & Compatibility

The LEM-1DLS (often searched as LEM 1DLS) supports standard 2-conductor shielded wiring infrastructure, making installation straightforward in retrofit and new-build environments. The N/O dry contact output allows integration with standalone electronic locks, conventional strike plates, and magnetic locks without requiring secondary relay hardware. The push-to-talk simplex protocol ensures compatibility with Aiphone's broader intercom and access control ecosystem, enabling expansion to multi-station configurations using compatible master units and door stations.

Package Contents

• LEM-1DL 1-Call Master Station with Door Release
• LE-D Surface Mount Door Station
• PT-1210N Electric Door Release Unit (qty. 1)

Wire gauge selection should be determined based on cable run length and voltage drop requirements. For longer runs or thinner gauge requirements, use Aiphone #821802 (18AWG) shielded cable. For standard installations with shorter distances, Aiphone #822202 (22AWG) shielded cable is acceptable.

Eden Phillips

The Aiphone LEM-1DLS represents a practical entry-level access control integration platform for facilities requiring visitor screening and electronic lock control without complex system overhead. During deployment planning, this system stands out for its simplicity and the bundled nature of its components—you receive everything needed for a functional single-door installation without additional component sourcing.

Technical Highlights:

• Dry Contact Output (30V AC/DC, 1A): The N/O configuration provides flexible integration with electric strikes, magnetic locks, and electronic latches across a wide voltage range, supporting both AC and DC powered lock hardware.
• 2-Conductor Shielded Wiring: Simple twisted-pair topology reduces installation complexity compared to multi-conductor systems; shielding minimizes electromagnetic interference in mixed-use buildings and industrial environments.
• Push-to-Talk Simplex Operation: Half-duplex communication is inherently secure and eliminates the latency concerns of full-duplex systems; visitors and operators follow clear communication protocol.

Deployment Considerations:

• Wire gauge selection (18AWG vs. 22AWG) should account for total circuit length and ambient temperature; longer runs (beyond 100 feet) benefit from the lower-resistance 18AWG specification to maintain voltage integrity at the door station.
• The N/O dry contact is designed for controlled load switching; validate that your lock hardware's current draw does not exceed the 1A maximum to avoid contact degradation or nuisance failures.
• Surface-mount LE-D door stations are suitable for interior lobbies, reception areas, and protected exterior vestibules; for exposed exterior use, specify weather-rated alternative door stations from the Aiphone catalog.

The LEM-1DLS is well-suited for small professional offices, medical practices, legal suites, and light commercial spaces where visitor management and secure entry control are priorities but system complexity is a constraint. The bundled offering reduces deployment timeline and eliminates component compatibility questions.