One Optical Terminal for All: Network, Telephone, Broadcast and TV — No Need for Four Separate Cable Runs in Classrooms

Against the rapid advancement of education digitalization, smart classrooms have become a standard part of campus construction. Equipped with interactive displays, student tablets, IP broadcast systems, campus telephones, high-definition TVs and surveillance cameras, modern classrooms deliver more efficient and diversified teaching. However, traditional cabling solutions have long suffered from isolated networks and tangled wiring. Separate cables are deployed exclusively for network, audio broadcast, video and telephone services. These four sets of lines operate independently and require individual maintenance.

This outdated model leads to cluttered pipelines, prolonged construction cycles and higher costs. It also brings numerous issues including excessive fault points, complicated operation and maintenance, electromagnetic interference and potential safety hazards. Troubleshooting a faulty system means checking every cable one by one, which severely disrupts teaching activities. Adding new devices also requires extra cabling, resulting in repeated construction and persistent troubles.

With the in-depth implementation of the Education Informatization 2.0 Action Plan, multi-network convergence, simplified cabling and efficient operation & maintenance have become core requirements for campus network development. AINOPOL’s optoelectronic converged all-optical solution breaks the shackles of traditional cabling. With just one optical terminal and a single optical fiber, it integrates network, telephone, broadcast and TV services all together. Classrooms are freed from messy cables and step into a new era of simplified, high-efficiency all-optical networking.

I. Four Major Pain Points of Traditional Classroom Cabling Hindering Smart Teaching

1. Complicated Cabling: Difficult Construction and High Costs

In traditional classrooms, network, telephone, broadcast and TV belong to four independent systems, requiring separate deployment of network cables, telephone lines, audio cables and video cables. Each classroom is filled with dense pipelines where strong and weak current lines intertwine. Construction involves slotting, pipe threading and cabling, which takes 3 to 5 working days for a single classroom, driving up labor and material costs. Renovating old classrooms poses even greater challenges. Restrictions from walls and ceilings leave no space for new concealed cables, so exposed wires become unavoidable — compromising aesthetics and creating safety risks.

2. Isolated Networks: Resource Waste and Poor User Experience

The four standalone systems lead to duplicated equipment procurement and unshared resources, forming information silos. Common problems include network lag, noisy broadcast audio, unstable TV signals and poor call quality. Services interfere with one another when running simultaneously, causing stuttering 4K screen projection, delayed audio broadcast and blurry TV images, which greatly undermine classroom interaction and the overall teaching experience.

3. Cumbersome O&M: Frequent Faults and Low Efficiency

Traditional networks adopt a multi-layer switch architecture with a large number of active devices scattered in equipment rooms, resulting in widely distributed fault points. Locating and fixing faults requires line-by-line and device-by-device inspection, which is time-consuming. A single faulty switch may cut off network access for an entire building. IT staff have to travel between classrooms constantly, leading to extremely low maintenance efficiency. In addition, inconsistent operation standards across multiple systems add to daily management workload and consume substantial manpower and resources.

4. Limited Scalability: Difficult Upgrades and Poor Compatibility

As education digitalization continues to evolve, new applications such as dual-teacher classrooms, regular live recording, VR teaching and smart security are widely deployed. Traditional cabling has a low bandwidth ceiling and poor scalability, failing to support services demanding high bandwidth and low latency. Adding new devices means re-routing cables, which incurs extra costs and long construction periods. Such solutions cannot keep pace with the rapid iteration of smart classrooms.

II. AINOPOL All-Optical Convergence Solution: One Optical Terminal Carries Four Services over a Single Network

Targeting the pain points of traditional classroom cabling, AINOPOL leverages PON (Passive Optical Network) technology to launch the optoelectronic converged all-optical solution. Centered on fiber cabling extending directly to classrooms and multi-service optical terminals, it realizes unified access, converged transmission and centralized management for network, telephone, broadcast and TV services. It eliminates tangled cables thoroughly and builds a simplified, efficient and stable network foundation for smart classrooms.

1. Simplified Cabling: One Optical Fiber Replaces Four Types of Cables

The solution adopts a streamlined two-layer architecture: Central Room OLT → Passive Splitter → ONU (ZH-F4125W). It abandons traditional multi-layer switches and runs optical fibers straight into classrooms. No floor-side equipment rooms are needed, and four separate sets of cables for network, telephone, audio and video are completely eliminated.

Each classroom only needs one ZH-F4125W device. It integrates 4 Gigabit Ethernet ports, telephone port, audio interface, TV signal interface and Wi-Fi 6 wireless access. A single optical fiber carries all services including network, telephone, broadcast and TV, cutting pipeline quantities by over 70% and keeping classrooms neat and tidy. Complicated slotting and pipe routing are no longer required during construction. The deployment time for one classroom is shortened to just one day, greatly reducing labor and material costs. Renovation of old classrooms can be completed quickly without damaging existing decorations.

2. Full Service Convergence: Four Functions Integrated into One Terminal

Tailored for campus scenarios, AINOPOL multi-service optical ONU integrates four core services in one unit, eliminating the need for multiple standalone devices. The total number of equipment is reduced by 60% for easier management.

High-speed Network: Delivers symmetric Gigabit/2.5G bandwidth and Wi-Fi 6 coverage. It supports concurrent access for over 40 student tablets, teachers’ computers and interactive screens. 4K screen casting and multi-screen interaction run smoothly with ultra-low latency, perfectly catering to group learning, interactive quizzes and other smart classroom applications.

IP Telephone: Built with dedicated telephone ports for on-campus and external calls. It ensures clear and stable voice communication. No separate telephone lines are needed, and classroom phones are ready for immediate use to meet daily office and emergency communication demands.

IP Broadcast: Equipped with an internal audio processing module that connects directly to the campus broadcast system. It supports daily bell ringing, background music, emergency notifications and listening tests. The broadcast delivers clear sound with noise-free performance and latency below 50ms, requiring no dedicated audio cables.

HD TV: Compatible with HD TV signals for campus IPTV, live classes and teaching video playback. It presents sharp images with stable signals without extra video cabling, and teaching content can be switched with one click.

3. Intelligent O&M: Cloud-based Remote Management for Doubled Efficiency

Supported by the EAAS Cloud O&M Platform, all optical terminals across the campus are under unified management with remote monitoring and one-click maintenance. IT staff can check the online status, port traffic and signal quality of all terminals in real time via mobile APP or PC. Functions including remote device reboot, one-click configuration delivery and automatic fault alarm are available. On-site troubleshooting is no longer necessary, lifting O&M efficiency by over 80% and cutting labor costs by 70%.

Network infrastructure underpins education digital transformation, while simplicity and efficiency are the key priorities. AINOPOL’s optoelectronic converged all-optical solution solves the long-standing pain points of traditional classroom cabling. One optical terminal plus one optical fiber replaces four separate cable systems for network, telephone, broadcast and TV, featuring simplified cabling, integrated services, high stability and intelligent operation.

Say goodbye to tangled cables and embrace streamlined efficiency. Our all-optical solutions have helped numerous schools nationwide upgrade their smart classrooms. They are widely applicable to new campus construction and old classroom renovation across primary, secondary and vocational education sectors, delivering robust network support for education digitalization. Going forward, AINOPOL will continue to deepen its presence in the education industry. With innovative all-optical technologies, we help more schools build simple, efficient, intelligent and secure smart classrooms, and fuel high-quality development of education.

FAQ

Q1: Will simultaneous operation of multiple services cause stuttering or conflicts and affect teaching?A: No. Adopting PON passive optical network technology, the solution supports QoS priority control. It intelligently allocates transmission priorities for teaching network, broadcast, telephone and TV signals, ensuring priority delivery of core services such as classroom teaching, listening tests and emergency broadcasts. In addition, optical fiber is immune to electromagnetic interference and signal attenuation. Multiple services run concurrently without mutual interference, featuring low latency, smooth transmission and clear audio.

Q2: Compared with traditional switch-based solutions, what are the O&M advantages of the all-optical convergence solution?A: Traditional solutions deploy a large number of active devices in corridors and classrooms, resulting in scattered fault points and time-consuming troubleshooting. The all-optical solution adopts a passive architecture, which drastically reduces active devices and fault risks. Matched with the exclusive EAAS cloud O&M platform, it enables real-time terminal monitoring, automatic fault alerts, remote reboot and configuration distribution. Staff no longer need to inspect classrooms one by one on site. O&M efficiency is greatly improved, and schools can save substantial manpower and material resources.

Q3: Does this solution have obvious cost advantages over traditional ones?A: Yes, the advantages are remarkable. Firstly, the all-in-one terminal replaces multiple standalone devices to cut hardware procurement costs. The simplified cabling system reduces consumption of cables and pipes, shortens construction period by over 60% and lowers labor costs significantly. Secondly, fewer active devices mean lower power consumption. Expenses for later operation, electricity and maintenance are largely reduced. The overall total cost of ownership (TCO) can be decreased by around 50% throughout the lifecycle.