
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 mm “Type 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 |
