EN54-7 Addressable Linked Fire Alarm Smoke Detectors
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Define: What Is Smoke Detector?
Smoke detectors are a crucial component of early fire warning systems, primarily providing early warning of smoke buildup during the initial stages of a fire. There are different kinds of smoke detectors based on their connection method, they can be categorized as addressable smoke detectors, conventional smoke detectors, optical smoke detector and wireless smoke detectors. While different systems cannot be interconnected, multiple linkable smoke detectors can be connected within the same system. This article focuses on programmable smoke detectors. For information on other types, please click the blue text above.
TX7100 Addressable Smoke Detector
what is addressable smoke detector?
TX7100 addressable smoke detector is a sensor device used in fire alarm systems. Its core value lies in its precise location. Conventional fire alarm systems can only determine the specific area where an alarm has occurred, while in an addressable fire alarm system, each fire detector eg. TX7100 has a unique digital identity, allowing precise identification of the detector in a specific room. This feature is crucial in large facilities like hospitals and data centers. For example, our addressable smoke alarm system, used in a library in Singapore, can pinpoint a specific location within the building.
Feature and Benefits
1, Analog transmission & digital addressing
2, Provides real-time status data to the alarm control panel
3, Intelligent linear compensation algorithm
4, 360° visible indicator light
5, On-site adjustable device parameters
6, Dust-proof cover
7, Remote indicator output
8, Complies with EN54-7 standard
Technical Specification
Approvals: LPCB / CE-CPR
Input Voltage: 24VDC [16V to 28V]
Current Consumption: Standby 0.6mA,Alarm:4mA
Protocol/Addressing: T&A, Value range from 1 to 254
Sensitivity: As per stipulated standard
Indicator: Single LED / 360-degree Visual
Material / Color: ABS/White Glossy finishing
Dimension / Height: Diameter 99.7 mm / 57 mm
Weight: 145g (with Base), 90g (without Base)
Operating Temperature: -10°C to +50°C
Humidity: 0 to 95% RH, Non condensing
TX7100 smoke detector lighting rules
The smoke detector only senses and signals smoke and does not have audible or visual alarms. In different situations, the indicator light provides visual signals, as summarized below:
Monitoring: Red, flashes periodically; Alarm: Red, stays on; Ma-function: off or yellow irregular flashes
The light flashing frequency depends on the circuit capacity and is not a fixed value. The light flashing frequencies in the figure below are for reference only.
Addressable Smoke Detector VS Conventional Smoke Detector
| Features | Addressable Smoke Detectors | Conventional Smoke Detector |
| Location Accuracy | Device-level location (e.g., "5F-103 smoke detector") | Zone-specific location (e.g., "Zone B alarm") |
| Fault Diagnosis | Real-time reporting of contamination levels, short circuits, and open circuits. | Loop continuity detection only. |
| Wiring Options | Single-circuit bus (supports ≤ 256 devices) | Multi-line zoned wiring (≤ 30 devices per zone) |
where to mount smoke detectors
1, First of all, we need to understand the assembly and expandability of the TX7100 smoke detector. It needs to be used in conjunction with the base. Because of the base, the expandability of this smoke detector is also increased. If connected to the sound base, the TX7100 will be transformed from a single smoke detector into a smoke alarm detector; if connected to the sound and light base, the TX7100 will be transformed into a smoke sound strobe smoke alarm detector. Please refer to the schematic diagram for details.
2, The TX7100 hard wired smoke detectors are low-voltage, 2 wired devices that feature signal terminals and remote indicator terminals.
Connect the wire in terminal as shown in Figure. Verify the device number or other device parameters if desired using handheld programmer then stick on the label before attaching detector. The sticker labels are available on the control panel.
Terminal Description:
1 Signal In (+), 2 Signal Out (+), 3 Remote Indicator (+), 4 Remote Indicator (+), 5 Signal In (-), 6 Signal Out (-), 7 Remote Indicator (-), 8 Remote Indicator (-)
3, The coverage of a TX7100 fire smoke detector is closely related to ground clearance. Typically, the detection radius for installations under 6 meters is 5.8 meters, covering an area of 60 square meters; the detection radius for installations between 6 and 12 meters is 6.7 meters, covering an area of 80 square meters. The distance between two smoke detectors is designed according to local regulations.
4, The TX7100 fire alarm smoke detectors can be installed on the ceiling, on the wall, or below the ceiling. However, the installation method depends on local regulations. For example, some regulations allow for both wall and ceiling mounting, so the TX7100 fire alarm smoke detectors can be installed this way. For example, see the figure below:
Product Strength and After-Sales Service
The TX7100 electric optical smoke detector holds LPCB, CE, and CPR certifications and complies with EN54-7 standards. This fire alarm smoke detector is sold worldwide and has received widespread acclaim. This success is not only due to the product strength, but also our on-site after-sales service in over a dozen countries worldwide, ensuring the smooth running of our customers’ projects.
Asia branch company
Vietnam, Malaysia, Indonesia,Singapore
Africa partner
Kenya, South Africa, Egypt
Middle East partner
UAE, Saudi Arabia, Qatar
South America partner
Brazil, Argentina
Tanda Technology is a China-based global supply chain management company specializing in fire protection and security products. We provide a one-stop solution for overseas clients to source the most comprehensive and cutting-edge products, covering residential, commercial, and industrial applications.
All of our products are manufactured in China and come with internationally recognized certifications such as UL, FM, CE, LPCB, and CCCF, ensuring global compliance, safety, and reliability. This allows us to deliver peace of mind to clients seeking trusted, certified solutions for projects worldwide.
Our portfolio also includes specialized energy storage fire protection solutions, addressing the growing demand in renewable energy and battery energy storage systems (BESS). With UL-certified fire suppression cabinets, integrated safety systems, and advanced monitoring technologies, Tanda Technology helps safeguard critical infrastructure in the new energy era.
Our international team, with members from multiple countries, is supported by overseas service teams and strong online technical support capabilities. With global reach and local expertise, Tanda Technology is your trusted partner for innovative, certified, and cost-effective fire protection and security solutions worldwide.
commercial smoke detector applications
The TX7100 high sensitivity smoke detector has a wide range of applications. Besides locations prone to dust, steam, oil mist, and water fog, as well as high altitudes, it can be used in any architectural environment below 12 meters.
These include homes, basements, rented properties, warehouses, commercial buildings, garages, restaurants, hotels, office buildings, shopping malls, residential communities, entertainment venues, computer rooms, archives, and other public spaces.
We have over 1,000,000 case studies to share with you, and we look forward to hearing from you.
Addressable Fire Alarm Panels System
The Fire Alarm Panel System is a powerful system that not only requires a core control panel like the LPCB-certified TX7004 FACP Fire Alarm Control Panel, but also needs to be paired with other detectors, modules, and appropriate configurations based on the project’s scale to maximize its effectiveness.
Smoke Detector FAQ
How does an addressable smoke detector differ from a conventional smoke detector?
Unlike conventional detectors, which are grouped by zones, addressable smoke detectors operate individually and send digital signals to the FACP. This enables pinpoint detection, easier maintenance, and more accurate system diagnostics.
What are the advantages of using addressable smoke detectors?
Addressable detectors offer several benefits, including:
Precise location identification
Reduced false alarms
Easier system maintenance and troubleshooting
Enhanced communication and integration with FDAS and FACP systems
Can addressable smoke detectors be used in both small and large buildings?
Yes. Addressable smoke detectors are scalable and suitable for both small and large installations. They are particularly effective in complex facilities—such as hotels, hospitals, or office buildings—where detailed fire location information is critical.
How do addressable smoke detectors connect to the fire alarm control panel (FACP)?
They connect through a communication loop (often referred to as an “addressable loop”) linked to the FACP. Each detector has a unique digital address, allowing the panel to monitor status, perform self-checks, and identify alarm or fault conditions in real time.
How does the TX7100 communicate an alarm if it doesn’t make sound?
When smoke is detected, the TX7100 sends a digital signal to the Fire Alarm Control Panel (FACP) via the addressable loop. The FACP then activates external sounders, strobes, or fire broadcast systems to alert occupants.
What are the advantages of a silent smoke detector like the TX7100?
Key benefits include:
No noise pollution during normal operation or testing
Centralized control of alarm signals via FACP
Improved reliability by eliminating local sounder faults
Better integration with building-wide FDAS systems
In what types of buildings is the TX7100 smoke detector most suitable?
The TX7100 is ideal for environments that require quiet monitoring, such as hotels, hospitals, offices, libraries, and data centers — where avoiding unnecessary sound disturbance is essential while maintaining precise fire detection through FDAS integration.