ALLNET Powerline phase coupler/signal bridge for DIN hat rails assembly, 3phase version + extra galvanically isolated phase for bridging FI_Schutzschaltern, home coupling or cross-current meter coupling, frequency range 1-70 MHz, temperature range: -25°C** IMPORTANT: 3 phases + "L/N" . Better coupling increases range compared to standard phase coupler. Multiple circuits can be connected to this ALL16881PC adapter. FI's can be bridged with multiple ALL16881PC **Attention. This item may only be installed by authorized repair shops.
The ALLNET ALL16881 Powerline Phase Coupler / Signal Bridge 3-Phase is a professional accessory for extending and stabilising powerline communication in buildings with three-phase electrical installations. Designed for use with HomePlug AV/AV2 and comparable powerline systems, this device couples the data signal between the three phases of the low-voltage network so that powerline adapters on different phases can communicate reliably with each other. This makes it particularly suitable for single-family homes, apartment buildings, small businesses and offices with multi-phase power distribution.
By being installed in or near the main distribution board, the ALL16881 ensures that the powerline signal is not confined to a single phase but is distributed across all three phases of the building. This can significantly improve coverage, reduce dead spots and increase the effective range of the powerline network. Typical applications include connecting routers in the utility room to access points or network devices on other floors, bridging long distances within buildings, and stabilising powerline communication in installations with several sub-distribution boards.
Key technical aspects include operation in three-phase power grids, signal coupling/bridging between phases and compatibility with common powerline communication standards used in residential and small commercial environments. As a passive or low-power component (depending on exact version), the phase coupler is designed for permanent installation by qualified electricians and is dimensioned for use in standard low-voltage installations, while complying with relevant safety requirements. Since ALLNET focuses strongly on networking solutions, the device is optimised to work as part of an integrated powerline infrastructure.
Using the ALLNET ALL16881 offers several benefits: it can make existing powerline adapters more effective by turning a fragmented, phase-separated network into a coherent distribution medium; it often reduces the need for additional cabling or repeaters; and it helps to create a more stable and predictable communication environment, which is particularly important for latency-sensitive applications such as VoIP, streaming or remote work. Because it leverages the existing electrical installation, it can be a cost-efficient and minimally invasive way to extend network coverage compared to retrofitting Ethernet cabling.
ALLNET is a German networking specialist with many years of experience in the fields of data communication, VoIP, powerline, wireless and smart home components. The company is known for offering technically sophisticated, professional-grade products that are still accessible to small businesses and demanding private users. In its product ranges and corporate strategy, ALLNET places increasing emphasis on quality, long service life and energy-efficient technologies, which contribute to more sustainable IT infrastructures. By using a phase coupler like the ALL16881 instead of installing new cables and infrastructure, customers can often use existing resources more efficiently, reduce material consumption and avoid unnecessary renovation work. With the purchase and use of this product, customers not only improve the performance and reliability of their home or office network, but also help to make better use of existing infrastructure and avoid avoidable electronic waste and construction measures.
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