The Honeywell 2MLR‑DBDF is a redundant fiber-optic expansion module designed for MasterLogic 200R PLCs. Supports ring topology, 2 km range, and dual LC fiber.

Model: 2MLR‑DBDF
Category: Fiber-Based Redundant Expansion Driver
Series: MasterLogic‑200R Series

✅ Applications:

• Industrial PLC communication over long distances

• Remote I/O expansion using fiber-optic rings

• High-reliability SCADA and automation networks

• Distributed I/O in harsh industrial settings

🔍 Key Specifications:

Module Type: Fiber-optic redundant expansion driver for remote/base I/O systems
Fiber Type: 62.5/125 µm multimode fiber with LC connectors
Redundant Paths: Dual-channel ring topology enabling high-availability configurations
Supported Stations: Supports up to 31 remote I/O bases per loop
Communication Range: Up to 2 km between stations
Power Draw & Weight: Powered through base backplane; typical weight ~190 g
Installation: Compatible with MasterLogic 12-slot racks; enables modular remote I/O scalability
Operating Environment: 0–55 °C; 5–95 % non-condensing humidity; ruggedized for industrial deployment
Coated Variant: 2MLR-DBDF-CC offers conformal coating for enhanced protection
Status: Active; recommended for systems requiring redundant fiber communication paths