Lenel LNL‑MR52‑S3B Series 3 Dual Reader Interface Module – New

Lenel LNL‑MR52‑S3B Series 3 Dual Reader Interface Module

The Lenel LNL‑MR52‑S3B is a Series 3 dual reader interface module built on the Mercury MR52 hardware platform and designed for use with Lenel OnGuard access control systems. This module provides secure, reliable communication between access control readers and the system controller, supporting a wide range of credential technologies and reader configurations.

Engineered for enterprise‑grade performance, the LNL‑MR52‑S3B delivers fast transaction processing, stable reader connectivity, and seamless integration with Lenel controllers. It is ideal for system expansions, upgrades, and replacing failed hardware in commercial, industrial, and government security environments.

• Model: LNL‑MR52‑S3B
• Series: 3
• Type: Dual Reader Interface Module
• System Compatibility: Lenel OnGuard
• Reader Support: Manages two access control readers
• Functions: Door control, credential authentication, alarm monitoring
• Performance: Fast processing and secure communication
• Condition: New

• Access control system expansions
• Replacing faulty reader interface modules
• Enterprise, commercial, and government security installations
• Integrators and security professionals

• Lenel LNL‑MR52‑S3B Dual Reader Interface Module
• Manufacturer packaging (new)