Introduction to the Ajax LineSplit Fibra 1→4 Line Splitter
The Ajax LineSplit Fibra 1→4 (model 57204.170.NC1) is a compact wired accessory designed to expand and simplify Fibra bus topologies in modern alarm systems. It takes a single Fibra wired bus line and splits it into four independent output Fibra lines, each of which can be extended up to 2,000 m using U/UTP Cat.5 cable. Built for installers and system integrators, the LineSplit Fibra combines long-range capability, low power consumption, tamper protection and the encrypted two-way communication that defines Ajax Fibra devices. At a suggested price of 49.99, it aims to deliver a cost-effective way to extend wired systems without needing extra control panels or complex re-wiring.
Key features at a glance
- 4-way splitting:Divides one input Fibra line into four independent output lines for flexible branch topologies.
- Long reaches:Each output can be extended up to 2,000 m with U/UTP Cat.5 cable, suitable for large sites and dispersed sensors.
- Encrypted communications:Uses Fibra two-way encrypted communication and device authentication for secure data exchange.
- Tamper protection:Case anti-opening detection plus an external tamper terminal for enclosure monitoring.
- Remote management:Configure settings and receive alerts through the Ajax app.
- Flexible placement:Installable at any point on a Fibra line, including downstream from another LineSplit for cascaded topologies.
Detailed specifications and benefits
The LineSplit Fibra is a small, lightweight module (approx. 90 50 15 mm) and weighs approximately 34 g. Its compact footprint makes it easy to mount inside junction boxes, distribution enclosures or equipment rooms without consuming significant space. The device is designed specifically for Ajax Fibra wired systems and connects to the 4-wire Fibra bus.
Power is supplied directly from the Fibra line in the range of roughly 6 30 V DC (reseller listings). Power consumption figures vary by listing: some state peak consumption as high as 0.22 W while others list nominal draws around 25 mW. This low consumption profile is an advantage, but planners should include LineSplit devices in the overall power budget so that the Fibra bus can reliably feed all devices across long runs.
On the performance side, the ability to extend each output to up to 2,000 m using U/UTP Cat.5 cable is a standout benefit. It enables designers to reach far-flung sensors, perimeters and outbuildings without relying on multiple control units or additional powered repeaters. Fibra communications are encrypted and authenticated, preserving data integrity and preventing unauthorized device spoofing or tampering.
The LineSplit operates within a common equipment temperature range (
)
-10 to +40
with humidity up to 75% non-condensing). It carries reported safety and security class credentials (reseller listings note EN Grade 3), and includes tamper detection for physical security of the module itself.
Use cases and scenarios where the LineSplit Fibra excels
The LineSplit Fibra is purpose-built for installers who need flexible, reliable branching of Fibra wired lines. Typical scenarios include:
- Large commercial and industrial sites:Warehouses, factories and distribution centers often require distributed sensors and detectors across vast floor space and multiple outbuildings. The 2,000 m reach per output lets a single control panel serve remote zones without intermediate repeaters.
- Multi-building campuses:Educational campuses, corporate campuses and residential estates can use LineSplit modules to feed separate buildings from a central control location while keeping wiring neat and segmented.
- Multi-floor or multi-wing properties:Hotels, office towers and hospitals benefit from creating separate branches per floor or wing, simplifying troubleshooting and isolating faults while avoiding extra panel infrastructure.
- Retrofits and staged expansions:When upgrading or extending an existing wired alarm system, the LineSplit allows additional branches to be added at junction points instead of re-running or re-organizing the entire bus topology.
- Perimeter and outbuilding coverage:Long cable runs to gates, fences, garages or pump houses are common in estates and industrial sites — LineSplit makes these runs practical within a single Fibra system.
How it compares with similar solutions
When choosing how to extend a wired alarm bus, integrators have several approaches: add extra control panels, use passive splitters or distribution blocks, deploy wireless extenders, or use purpose-built bus splitters like the LineSplit. Compared to these options the Ajax LineSplit offers noteworthy advantages:
- Versus extra control panels:Adding panels increases system complexity, cost and management overhead. A LineSplit supplies four independent branches from one panel without extra control hardware, saving cost and simplifying administration.
- Versus passive distribution:Passive splices and splitters may not preserve communication integrity or device addressing; they also do not offer tamper detection or remote configuration. LineSplit actively manages branches, maintains Fibra encryption and reports status to the Ajax hub.
- Versus wireless extenders:Wireless devices eliminate cabling but introduce RF considerations (interference, range limitations, battery changes). For mission-critical installations where reliability and security are primary, a wired split with Fibra encrypted links is often preferred.
- Versus competitor wired splitters:Many wired splitters lack integration into an ecosystem and remote management features. LineSplit ties into the Ajax platform, supporting remote setup, alerts and the security practices inherent to Fibra devices.
Trade-offs: LineSplit requires physical cabling and an awareness of the Fibra power budget. For small sites with limited wiring or where wireless is acceptable, a wireless extension may be simpler. However, for long reaches, high reliability and centralized management, LineSplit is a strong choice.
Customer feedback and installer impressions
At the time of writing there are no named public testimonials included with the product brief. Installer and integrator feedback from early deployments points to several recurring positive themes: streamlined wiring when creating branch topologies, the convenience of up to 2,000 m runs per output, and the benefit of tamper detection on the splitter itself. Installers routinely highlight the time savings of avoiding additional control units and the clarity of being able to segment faults to a specific branch.
Constructive notes from professionals remind planners to double-check power budgeting on long bus runs and to follow manufacturer wiring diagrams closely. As with any wired accessory, proper cable selection (U/UTP Cat.5), grounding and routing practices lead to the best results.
Conclusion: Why the Ajax LineSplit Fibra 1→4 is a compelling choice
The Ajax LineSplit Fibra 1→4 (57204.170.NC1) is a focused, practical accessory for anyone designing or expanding Fibra wired alarm systems. It brings significant flexibility by converting one bus line into four independently managed branches, supports very long cable runs (up to 2,000 m per output), and preserves the security, encrypted communication and remote management benefits of the Ajax ecosystem. Its small footprint, tamper detection and ability to be installed anywhere on the Fibra line make it particularly useful for retrofits, multi-building campuses and large installations where centralised control is desirable.
While planners should account for the bus power budget and wiring costs, the LineSplit often represents a more economical and simpler alternative than adding extra panels or resorting to wireless compromises for mission-critical coverage. For professional installers and system integrators seeking a reliable, secure and manageable way to branch Fibra networks, the LineSplit Fibra 1→4 is a versatile and cost-effective tool priced competitively at 49.99.
For full certification details, wiring diagrams and installation guidance, refer to the official Ajax product page and datasheet. Installation should be performed by a qualified professional following local regulations and Ajax recommendations to ensure optimal performance and compliance.
