Fire Door Input/Output Interface Module

This series of fire door monitoring modules consists of intelligent front-end control units specifically designed to monitor and control the status of normally open or normally closed fire doors. Featuring a standard "86-box" form factor for installation, these units provide dual-channel digital input interfaces. The modules maintain real-time communication with a central monitoring host via a non-polarized M-BUS two-wire bus; they are responsible for receiving and executing "forced closure" commands issued by the host, while simultaneously transmitting precise feedback—including the open/closed status of the fire doors and any fault information—collected by front-end magnetic door contacts back to the central control room. This functionality ensures the establishment of robust smoke and fire compartmentalization zones in the event of a fire.

Description

Product Advantages

1.Real-time Status Monitoring and Independent Encoding:

Equipped with a highly intelligent, independent electronic address code, the system provides 24/7, blind-spot-free monitoring of fire door operational status, directly transmitting precise fault or alarm locations back to the central control system.
2.M-BUS Non-Polarized Two-Wire Bus:

Power supply and data communication are integrated into a single line; wiring requires no distinction between positive and negative polarity, allowing for a communication range of up to 1,000 meters. It supports flexible wiring topologies—reducing installation costs by 50%—and completely eliminates faults caused by incorrect wiring.
3.Flexible Configuration for Single and Double Doors:

The MK4 (paired with HLB) supports a configuration of one HLB unit per single door, or two HLB units per double door. The MK4 (paired with MC0 + MC1 + SF1) offers enhanced compatibility, meeting the comprehensive system integration requirements of various complex evacuation routes.
4.Minimalist Installation via Standard “Type 86” Box:

Featuring a standard 85 × 85 × 36 mmType 86” form factor, the unit integrates seamlessly with pre-embedded low-voltage boxes in new construction projects while also facilitating the intelligent upgrade and retrofit of fire safety systems in existing buildings.

5.Microsecond-Level Rapid Control Response:

The system demonstrates acute responsiveness, with a fault or action alarm notification time of ≤ 10 seconds. With a rated power consumption of less than 5W, it strikes an optimal balance between highly efficient fire linkage performance and eco-friendly, low-power operation.

Applications & Selection

Widely deployed as a complete system across major civil, commercial, and industrial buildings for the intelligent, interlinked control of fire doors located in evacuation corridors, stairwells, vestibules, and similar areas:
1. High-Occupancy Public Buildings: Large shopping malls, upscale office complexes, hospital outpatient facilities, school instructional buildings, theaters, and cinemas.
2. Key Transportation Infrastructure Projects: High-speed railway stations, airport terminals, integrated utility tunnels, and urban underground transit hubs.
3. Industrial Manufacturing and Information Technology: Data centers (IDC rooms), high-tech manufacturing plants, and large-scale warehousing and logistics parks.

Product Specifications

Model BY-FM-MK4 (with HLB) BY-FM-MK4 (with MC0+MC1+SF1)
Load Capacity 1 set of HLB for single door, 2 sets for double door 1 set of MC0+MC1 for single door, 2 sets for double door
Operating Power Supply DC18V-36V (2-wire bus) DC18V-36V (2-wire bus)
Communication Bus M-BUS, ≤1000m M-BUS, ≤1000m
Rated Power 0.5W for single door, 1W for double door 3W for single door, 5W for double door
Alarm Time 10S 10S
Door Weight Selection BY-FM-HLB(65KG)
BY-FM-HLB(85KG)
BY-FM-HLB(120KG)
Universal Type
Interface Parameters 2-channel switch input 2-channel switch input
Installation Dimensions 86-box installation 86-box installation
External Dimensions (mm) 85×85×36 85×85×36

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