G.HN

A connection that links everything.

What is G.hn?

G.hn is a technological standard that represents a significant leap in the way we think about home networking. At its core, G.hn offers a universal solution for high-speed data transmission over existing household wiring—whether that's power lines, phone lines, or coaxial cables. This versatility challenges the conventional wisdom that different types of wiring require different networking technologies. By standardizing data transmission across various media, G.hn promises not only to simplify network installations but also to enhance performance and coverage, tapping into the underutilized potential of home infrastructure. In essence, it reimagines connectivity, fostering efficiency and adaptability in a world that increasingly depends on seamless digital communication.

What Performance does G.hn provide?

By using advanced modulation and error correction techniques, G.hn can achieve impressive data transmission speeds of up to 2 Gbps, making it suitable for modern demands such as 4K video streaming, smart home integration, and IoT. Latency, a critical factor in the responsiveness of interactive applications, is kept remarkably low, often within the sub-millisecond range, ensuring near-instantaneous communication between devices. Jitter, the variability in packet arrival times, is also minimized, typically to within a few milliseconds, ensuring smooth and reliable performance even in environments with significant electrical noise. The genius of G.hn lies in its ability to turn existing wiring into a robust, high-speed communication network, offering a flexible and efficient solution for modern data transmission without the need for new infrastructure.

What is the distance versus data speed trade-off for G.hn?

G.hn, a versatile networking standard that operates over power lines, coaxial cables, and phone lines, embodies the classic tradeoff between distance and data speed that engineers must navigate. Its design allows it to function across various physical media, but as with any signal transmission, distance attenuates performance. Over short distances—typically up to 100 meters on coaxial cable or power lines—G.hn can achieve impressive data speeds of up to 2 Gbps, rivaling many fiber or Ethernet solutions in local networking environments. However, as distance increases, the speed decreases due to signal attenuation and noise interference, especially over less-ideal media like power lines. Over longer distances, such as 500 meters on coaxial or phone lines, G.hn speeds drop to around 100-200 Mbps, depending on the quality of the wiring and external interference. This tradeoff illustrates the inherent tension between maximizing bandwidth and maintaining robust communication over extended distances. G.hn’s strength lies in its ability to adapt flexibly to various environments—whether it’s optimizing for short-range, high-speed data transfer in homes, or extending reach at lower speeds in sprawling buildings—making it a pragmatic solution for bridging the distance-versus-speed divide in a wide range of contexts.

 

What standards is G.hn based on?

G.hn is a versatile home networking technology that operates across multiple layers of the OSI model, chiefly encompassing Layer 1 (Physical), Layer 2 (Data Link), and Layer 3 (Network). At Layer 1, G.hn is unique in its ability to transmit data over various media—coaxial cables, power lines, and telephone lines—making it a flexible solution for home environments. Layer 2 is responsible for managing data frames, error correction, and ensuring reliable communication over these diverse physical media. At Layer 3, G.hn supports IP-based communication, facilitating integration with broader internet protocols and enabling seamless device networking. The core standards defining G.hn are ITU-T G.9960 and G.9961, which specify the physical layer and data link layer protocols, respectively. These standards are rooted in earlier technologies like HomePlug, but they consolidate disparate networking methods into a unified, efficient system. By harmonizing communication over multiple transmission channels, G.hn offers a highly adaptable approach to home networking, combining the established principles of Ethernet and broadband with innovations that address the challenges of non-traditional media.

What applications is G.hn used in?

G.hn, a versatile networking technology that operates over power lines, coaxial cables, and telephone lines, has found utility in industries that require robust, high-speed connectivity without the need for new infrastructure. In the telecommunications industry, G.hn enables service providers to deliver broadband speeds over existing wiring, especially in multi-dwelling units (MDUs) or older buildings where rewiring for fiber is cost-prohibitive. The smart home industry leverages G.hn for seamless integration of IoT devices, enabling everything from home automation to security systems via a single, unified network. In hospitality, G.hn is used to provide high-speed internet access and IPTV services to hotel rooms using existing power or coaxial lines, reducing installation costs and downtime.
G.hn technology thrives in environments where multiple devices need to communicate reliably over diverse media, making it ideal for connecting smart appliances, set-top boxes, and broadband modems. Key components of a G.hn system include G.hn adapters and modems, which facilitate data transmission over non-traditional wiring, and G.hn controllers, which manage traffic across the network. By offering a unified solution for home networking and industrial environments, G.hn bridges the gap between legacy wiring systems and modern digital demands, allowing industries to repurpose existing infrastructure while delivering high-speed, low-latency services.

What are the advantages of using G.hn in these applications?

Before G.hn emerged as a universal standard for home networking, different technologies—such as HomePlug for power lines, MoCA for coaxial cables, and G.fast for twisted-pair telephone lines—dominated their respective domains, creating a fragmented ecosystem of communication protocols. Each technology had its strengths, but their siloed nature meant that integrating different types of wiring—whether for power lines, coaxial cables, or phone lines—required multiple interfaces, creating inefficiencies and higher costs. HomePlug, for instance, enabled power line networking but often suffered from inconsistent performance in homes with complex electrical grids, while MoCA provided high-speed data over coaxial cables but was limited to homes pre-wired with coax.
G.hn revolutionizes this landscape by offering a unified, versatile standard capable of transmitting high-speed data over virtually any existing wiring—be it power lines, coaxial cables, or phone lines—thereby simplifying home and building networking. This convergence allows G.hn to outperform its predecessors by delivering multi-gigabit speeds with low latency across a wide variety of mediums, reducing the need for multiple technologies and complex installations. With G.hn, a single device can serve as the backbone for a home's entire wired communication infrastructure, offering not just simplicity but also enhanced performance, even in environments where wireless solutions like Wi-Fi struggle with interference or signal strength.
The benefits of G.hn are clear: it reduces the need for new wiring, maximizes the use of existing infrastructure, and offers consistent, high-speed performance across multiple mediums. By unifying the previously disparate communication technologies into a single, robust standard, G.hn improves connectivity, reduces costs, and simplifies the setup of complex home networks—making it an ideal solution for both retrofitting older buildings and future-proofing new ones in the era of smart homes and IoT.

Market Trends affecting the use of G.hn

Current market trends, driven by the proliferation of smart home technologies, bandwidth-hungry applications, and the growing complexity of digital infrastructures, are positioning G.hn (Gigabit Home Networking) as a critical solution for in-home and building-wide connectivity. Historically, networks inside homes and businesses were a patchwork of different technologies—Wi-Fi, Ethernet, MoCA, and powerline communication—each serving distinct purposes but often leading to inefficiencies and signal degradation. As consumers demand seamless, high-speed internet across every room and floor, particularly for 4K streaming, video conferencing, and IoT devices, the limitations of Wi-Fi in terms of coverage, interference, and reliability have become more apparent.
G.hn addresses these challenges by unifying all available wiring—power lines, coaxial cables, and phone lines—into a single, high-performance network. It transforms these often-overlooked infrastructures into powerful data pipelines capable of delivering multi-gigabit speeds with low latency and minimal disruption. In a market where consumers and businesses alike are prioritizing flexible, scalable solutions, G.hn’s ability to repurpose existing wiring makes it both a cost-effective and technically superior alternative to deploying new cabling or relying solely on Wi-Fi. By providing robust, reliable coverage throughout an entire building, G.hn offers a future-proof solution to meet the increasing demands of connected living and working spaces, positioning itself as an essential tool in the next phase of home networking evolution.

Which Topologies are supported?

G.hn, the versatile networking standard for home and enterprise environments, supports an array of network topologies that exploit the existing wiring infrastructure—be it power lines, coaxial cables, or phone lines—to deliver high-speed data communication. This flexibility means G.hn can accommodate diverse topologies such as point-to-point, star, bus, or even daisy chain configurations. At its core, G.hn adapts to the topology most suited to the physical wiring layout, offering remarkable adaptability in older buildings or settings where rewiring for Ethernet or fiber is impractical. Unlike many other technologies that are tethered to a specific medium or layout, G.hn's power lies in its ability to treat diverse transmission media uniformly, allowing for consistent performance across varied network topologies. Whether the goal is to link isolated rooms in a sprawling home or create a resilient mesh across a larger facility, G.hn provides a robust, low-latency backbone that integrates the topology to the needs of modern digital ecosystems.

Our Products


G.hn M2 Modul

The slim module as an expansion card.

  • IEEE 802.1d transparent bridge
  • G.hn: ITU-T G.9960/ 9961/ 9962/ 9964
  • Ethernet: IEEE 802.3/ 802.1p/ 802.1q
  • IGMP v2, v3 Snooping
  • Support of 802.1p pbit and DSCP mapping
  • Add/remove/replace VLAN tags
  • Management via web interface or customised configuration tool
  • Functions depending on M.2 connector type (B+M):
  • Core functionality on PCIe lane 0 (available for Key Band Key M) for data and in-band management
  • Additional function out-of-band management via USB (only for key B)
  • suitable for: universal enterprise CPE / IAD / gateway / router / PC / white box CPE
SHDSL.M2.1CH

GHN.SOM.PLC_topview_2

G.hn EVB SOM

The evaluation board for G.hn

G.hn system on module for older applications

Bringing new connectivity to existing devices or being able to focus on the sole functionality of devices under development is a major engineering task. With the GHN.SOM.PLC, Teleconnect offers a powerful, easy-to-use, compact and retrofittable solution for bringing MIMO-capable powerline communication (PLC) with maximum performance to almost any existing device!

  • PLC coupling without isolation on the board
  • Single wide-range power supply
  • MIMO operation for maximum performance
  • best-in-class connectivity and robustness
  • best interoperability with various G.hn chipsets and devices, guaranteed coexistence (G.9972)
  • G.hn: ITU-T G.9960/9961/9962/9963/9964
  • Ethernet: IEEE 802.1d transparent bridge, 802.3/802.1p/802.1q
  • Management via web interface, user-defined configuration programme or even TR-069
  • Data interfaces: SGMII, RGMII, MII
  • Enables the connection of external microcontrollers or Ethernet PHY
  • flexible software with expandable functions such as control of GPIOs or customised interfaces can be provided by Teleconnect!
  • direct soldering or versatile 2.0 mm pin header interface

Our Projects

Video Transmission for Canal Inspections

G.hn as robust transmission technology

  • G.hn: ITU-T G.9960/ 9961/ 9962/ 9964
  • Nominated for the    logo_pcd_award
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