Optical Network Terminal: What It Is and Why Your Network Infrastructure Depends on It
The way businesses and people connect to the internet has changed a lot in the last ten years. In the past, many networks used copper cables. However, today many organizations are moving to fiber optic networks. This is because fiber can give faster speed, higher capacity, and more stable performance. Many industries now depend on fiber infrastructure and devices like the optical network terminal to deliver internet services efficiently. Many industries now use fiber networks. Cloud providers, OTT platforms, telecom companies, and enterprise networks all rely on fiber. These networks need special devices to work properly. One of the most important devices is the Optical Network Terminal (ONT). According to Grand View Research, the global FTTH market reached USD 56.03 billion in 2024. It may grow to USD 110.44 billion by 2030 with a CAGR of 12.4%. As fiber networks grow, the device at the end of the connection becomes very important. This is where the Optical Network Terminal comes in. An ONT is installed at the user’s location. It changes the light signal from the fiber cable into usable data for devices. Without this device, the fiber cable alone cannot deliver internet, voice, or video services to the user. What does an optical network terminal do? An optical network terminal converts light signals from a fiber optic cable into electrical signals that devices can use. It works as a bridge between the provider’s fiber line and the user’s local network. First, it receives light signals from the provider’s central office. It converts these signals into electrical signals. Then, it sends the data to devices such as computers, routers, or phones. The ONT is the final connection point in a Fiber-to-the-Premises (FTTP) or Fiber-to-the-Home (FTTH) network. One ONT can support internet, voice, and video services at the same time. Why do you need an optical network terminal? You need an optical network terminal to make a fiber internet connection work at your location. This is because FTTP sends the fiber cable directly to the user’s location. However, this connection cannot work with a normal modem or master socket. The ONT acts as the interface between the fiber network and the user’s devices. It allows the network to deliver data correctly inside the building or office. Fiber networks send data as light instead of electrical signals over copper cables. Fiber can keep its speed even over long distances. The ONT keeps this advantage by converting the light signal correctly. As a result, users can get faster and more stable internet compared to older copper connections. The difference between ONT and ONR Both ONT and ONR are devices used in fiber networks. However, they have different roles. There are also some key differences between them: Therefore, businesses with large data needs usually choose a dedicated ONT and a separate high-performance router. The infrastructure behind the optical network terminal An Optical Network Terminal can work well only if the fiber network behind it is strong. A fiber network usually has three main parts. If one part has a problem, the ONT cannot work well. Because of this, many telecom companies, hyperscalers, and OTT providers look for dark fiber providers that run and manage the whole network. One example is ARNet. The company runs a fiber network across Southeast Asia. Its network covers more than 10,000 km in Malaysia, Indonesia, Singapore, and Thailand. It connects cities such as Kuala Lumpur, Johor Bahru, Jakarta, Batam, Bangkok, Chonburi, and Singapore. ARNet provides long fiber lines, city fiber, and last-mile fiber. Its network also connects more than 60 data centers and works more than 99.99% of the time. In the end, an Optical Network Terminal works best when the fiber network behind it is strong and stable. Network companies must build and manage their networks carefully. ARNet is one company in the region that builds and runs its own fiber network without using other companies. This helps hyperscalers and telecom companies get their own network path, clear control of the network, and stable service. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Inside a Data Center Network: Global Trends, Costs, and Key Countries
The global digital system is growing fast as more businesses move their services online. Because of this, the need for systems that move data is also growing. At the center of this system is the data center network. It connects servers, storage, and computing systems inside and between data centers. A strong network helps data move quickly and reliably. This is very important for hyperscalers, OTT providers, and telecommunications companies that handle large amounts of data traffic. As more people use cloud services, video streaming, and mobile apps, the demand for strong and scalable networks continues to increase. In this article, we explain what a data center network is, which countries have the most data centers, and how much it costs to run one. What Is a Data Center Network? A data center network is the system that connects all the equipment inside a data center. It links routers, switches, servers, and storage devices so they can send and receive data. Without this network, the systems inside a data center cannot communicate with each other or connect to outside networks. Data center networks use several types of fiber connections. Long-haul fiber carries data across long distances, such as between cities or countries. Metro fiber connects locations within the same city. Last-mile fiber connects the main network to buildings or end users. Together, these connections create a full network path that allows fast data transfer with low delay. Another important connection is dark fiber. Dark fiber is fiber optic cable that is already installed but not yet being used. Companies can lease dark fiber to build their own private and high-capacity networks. This also gives them more control over their network performance. According to Grand View Research, the global dark fiber market was worth about USD 6.90 billion in 2025 and is expected to grow about 15.9% per year from 2026 to 2033. Which Country Has the Most Data Centers? The United States has the most data centers in the world. According to Statista (2024), the country has 4,165 data centers. Germany, the United Kingdom, and China come next. These countries invest a lot in data center systems to support cloud services, business systems, and online trade. In Southeast Asia, the market of a data center network is growing very fast. Singapore has been the main data center hub in the region. However, the country paused for new data center building for some time, and the pause ended in 2022. Because of this, many new projects are now moving to nearby countries such as Malaysia, Indonesia, and Thailand. This growth happens because more people and businesses use cloud services, mobile internet, and digital tools. Because of this, the need for strong data center network connections is also growing. This includes dark fiber, long-distance fiber, and metro fiber networks across Malaysia, Indonesia, Singapore, and Thailand. How Much Does It Cost to Run a Data Center? Running a data center network costs a lot of money. The cost depends on the size, location, and type of the facility. The main costs include power and cooling, hardware, staff, software licenses, and network connections. Electricity is often the biggest cost. According to the International Energy Agency (IEA), data centers around the world used about 415 terawatt-hours of electricity in 2025. A McKinsey report shows that data centers for AI processing may need $5.2 trillion in investments, while those for regular IT work may need $1.5 trillion. In total, nearly $7 trillion will be needed for data centers by 2030, which is a huge amount of money. Building the Right Network Foundation for the Future A strong data center network is the foundation of modern digital services. As data continues to grow, companies need faster and more reliable networks. Because of this, good network infrastructure is becoming more important than ever. The United States still has the most data centers in the world, but Southeast Asia is growing quickly. Countries such as Malaysia, Indonesia, Singapore, and Thailand are becoming important locations for new data center development. Running a data center requires a large investment. However, solutions like dark fiber can help companies build private and high-capacity networks while also controlling costs. For hyperscalers, OTT providers, and telecommunications companies in Southeast Asia, choosing a reliable dark fiber provider is very important. ARNet is a dark fiber infrastructure provider with a wide network across Malaysia, Indonesia, Singapore, and Thailand. ARNet provides dark fiber, long-haul fiber, metro fiber, and last-mile fiber services. These services help businesses build private, high-bandwidth connections between data centers and important network locations with flexible and scalable connectivity. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Understanding the 7 OSI Network Layers for B2B Connectivity
Data does not move from one device to another in one step. Instead, it moves through a system called network layers. These layers are rules that explain how data is sent and received in a network. At the same time, it only works with the layer above it and the layer below it. It is easier to manage, fix, and improve a network without affecting the whole system. Because of this system, the process is easier to understand. In this way, the layers split the process into simple steps. For example, people most commonly use the OSI (Open Systems Interconnection) model to explain layers. However, the full OSI model has seven layers. Because of this difference, it is important to understand the complete structure. Therefore, this article explains all seven layers in simple and easy words so you can see how they connect to each other. What are the 7 layers of networking? The seven network layers come from the OSI model. In simple terms, this model shows how data moves from one device to another on a network. In some cases, people explain networking using only five layers. However, the full OSI model has seven layers. Learning all seven layers helps you better understand how devices talk to each other. With that in mind, below is a simple explanation of each layer. Layer 1: The physical The physical layer is the lowest layer. It sends data as simple bits through cables or fiber optic lines. Dark fiber works at this level. Dark fiber is a fiber optic cable that is already in the ground but not turned on. When a company connects its own equipment, the fiber becomes the path that carries data in the network. Layer 2: The data link The data link Layer helps two devices talk to each other on the same network. At this stage, the system groups small pieces of data (bits) into frames. This layer also checks if there are errors and uses MAC addresses to make sure the data goes to the right device. Because of this, communication inside a local network becomes more stable and more reliable. Layer 3: The network The network layer is one of the main network layers that sends data between different networks. It uses IP addresses to decide where the data should go. Routers work at this level. Because of this, data can travel across many connected networks around the world. Layer 4: The transport The transport layer is one of seven layers that makes sure data arrives in the right order. This layer also controls how fast data moves. Two main protocols work here. TCP makes sure data goes safely and correctly. People often use it for websites and email. UDP sends data faster but does not always check for errors. It is often used for video streaming and live services. Layer 5: The session The session layer is one of the seven layers that help devices communicate with each other. This layer starts, keeps, and ends connections. If the connection stops, the Session Layer helps the data continue instead of starting again from the beginning. Because of this, communication stays stable and smooth. Layer 6: The presentation The presentation layer is one of the seven layers that prepares data before it is used. It changes data into a form that both the sender and receiver can understand. It also keeps data safe with encryption and makes files smaller with compression. Some formats it works with are SSL/TLS, JPEG, and ASCII. Through these tasks, the network layers help keep data safe and easy to use on different devices. Layer 7: The application The application layer is the top layer and the closest to the end user. This layer connects the system to apps like web browsers and email apps. It uses rules like HTTP, SMTP, FTP, and DNS. Because users use these apps directly, this is where they can see and feel how well the connection works, especially for cloud and OTT services. Network layers and the infrastructure behind them The seven layers are the base of all network communication. Each layer works with the layer below it. At the bottom is the Physical Layer, which uses fiber optic cables to send data. The quality and size of this fiber affect how well the layers above it work. Across Southeast Asia, the need for fiber keeps growing as more people use data. Companies in Malaysia, Indonesia, Singapore, and Thailand need more capacity to support digital services. Dark fiber supports the lowest of network layers by giving a private physical path. Because it is not shared with other users, businesses have full control over their network. ARNet owns and operates more than 10,000 kilometers of fiber network across Southeast Asia, serving hyperscalers and major companies in Malaysia, Indonesia, Singapore, and Thailand. It provides long distance fiber between cities and countries, metro fiber in urban areas, and last mile fiber for direct data center connections. By managing its own network and licenses, ARNet strengthens the foundation of all network layers and supports uptime of more than 99.99% across its infrastructure. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Telecom Infrastructure Explained: Types, Examples, and Key Services for Modern Networks
Telecom infrastructure is the system that carries voice, data, and video from one place to another. It includes fiber optic cables, cell towers, data centers, satellite links, and the software that controls them. Based on DataM Intelligence, the global market was worth USD 246.78 billion in 2024 and may reach USD 409.21 billion by 2033, with steady growth each year. This shows that more businesses, governments, and people depend on strong and stable networks. As more people use the internet every day, telco infrastructure becomes more important for work and daily communication. As data use grows each year, companies need networks with more capacity and faster speed. Because of this, hyperscalers, OTT providers, and telco companies must handle very large amounts of data every second. To do this well, they need to understand how telecom infrastructure works. When they understand it, they can plan better to build, expand, or improve their networks. This helps them avoid delays and keep their services running smoothly. What is telecom infrastructure? Telecom infrastructure is the system that helps communication services work. It includes physical parts like fiber cables, towers, antennas, and network exchange points. It also includes software and systems that control and send data from one place to another. All these parts work together so people can call, send messages, and use the internet. Without telecom infrastructure, the internet, mobile networks, and digital services cannot run. Each part has its own job, and every part must work well with the others. When they work together in the right way, data can move smoothly. Because of this, users can enjoy fast and stable connections. What are the examples of telecommunications infrastructure? Telecommunications infrastructure includes fiber optic cables, cell towers, antenna systems, data centers, network exchange points, subsea cables, satellite systems, routers, and switches. These parts help send data from one place to another. They help people make calls, send messages, and use the internet. One of the most important parts is fiber optic cable. Market Reports World says that fiber optic networks reached 72 million kilometers in the world in 2024. This means fiber is the biggest part of the telecom market. Fiber can send data very fast and very far. Because of this, many countries use fiber as the main network line. The 4 types of telecommunication services The four main types of telecommunication services are fixed-line, mobile, internet, and satellite services. All of them need strong telecom infrastructure to provide stable and reliable connections. Building a stronger network starts here Telecom infrastructure is the base that keeps businesses and people connected. It includes fiber cables, towers, data centers, and satellites. Each part helps send data from one place to another. Today, more people use the internet and cloud services, so the need for fast and stable connections keeps growing. Because of this, companies must choose the right infrastructure partner who can support their growth. This is very important for telcos, hyperscalers, and enterprises that need strong and stable networks. Dark fiber is a popular solution in telecom infrastructure for companies that want full control of their network. Dark fiber is not shared with other users. This means companies can use their own equipment and control their own bandwidth. They can increase capacity when they need it and manage their network in their own way. This helps them keep stable performance in different locations, which is very important for companies that operate in many markets. ARNet is a dark fiber provider with an AI-grade, all-fiber network that covers more than 10,000 km across Southeast Asia, including Malaysia, Indonesia, Singapore, and Thailand. ARNet supports hyperscalers and large enterprises with long haul, metro, and last mile fiber solutions. Its network connects more than 60 data centers and provides very high uptime. Because ARNet holds all key network licenses under one company, clients get faster setup, fewer issues with other parties, and stable performance for projects of any size. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
How Aerial Cable Accelerates Fiber Network Deployment
Telecommunications networks are growing fast all over the world. Because of this, companies need to build their networks quickly. They also need to spend less money. More people use the internet every day, so the need for fast internet keeps growing. To help with this, companies use fiber optic networks and aerial cables. Using aerial cable is an easy and simple way to build a network. Instead of putting cables under the ground, workers put them on poles above the ground. This way is faster and usually costs less. Because it is fast and cheap, many companies use this method today. What is an aerial cable? An aerial cable is a fiber optic cable that hangs above the ground on poles or similar structures. The cable stretches from one pole to another. It uses a support wire to hold it in place and keep the right tension. This is different from underground cables, which are buried in the soil or placed inside pipes. Since aerial cables stay outside, they need strong protection. The cable has special outer layers to protect the fiber inside. These layers protect it from rain, heat, wind, and other weather conditions. Manufacturers use strong and water-resistant materials so the cable can last for many years. Markets and Markets Reports show that aerial deployment led the fiber optic market in 2024. This shows that many companies prefer this method because it is practical and cost-effective. What does an aerial cable do? An aerial cable sends data from one place to another using light signals. These light signals carry digital information. This allows people to use high-speed internet, phone services, and television. Because fiber can carry large amounts of data, it supports modern apps and online services. The cable connects data centers, phone exchanges, offices, and homes. In this way, it helps data move between users and service providers. Many services like cloud platforms and streaming depend on this network. One aerial cable can contain many fiber strands inside it. Each strand can serve a different customer or service. This means one cable route can support many users. As a result, companies can reduce costs while still serving more customers. Key steps to connect aerial cable Installing aerial cable needs careful planning. The process usually follows several steps, including: The Fiber Broadband Association reports that aerial installation cost about $6.55 per foot in 2024. Underground installation cost about $18.25 per foot. Aerial cable is much cheaper, so many companies choose this method for their network projects. Moving forward with fiber infrastructure Aerial cable is very important for telecom networks because it helps companies grow fast. It keeps costs low and service good. At the same time, ARNet provides dark fiber infrastructure that is friendly for hyperscalers and big telecom companies. This means businesses can control their network. They can make it bigger when they need more speed or more capacity. ARNet’s network covers Southeast Asia, serving Malaysia, Indonesia, Singapore, and Thailand. It includes long routes, city fiber, last-mile connections, and aerial cable. The design makes it easy for hyperscalers and large operators to scale their operations and send data fast. ARNet builds and takes care of its network. This allows the company to keep good quality and work fast. It also has the right licenses. With more than 10,000 kilometers of fiber connecting over 60 data centers, the network runs with a committed SLA, so business can keep running well. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Wireless Cable: What It Means for Your Network
The digital world needs strong and stable connections. Businesses send and receive data every second. This data helps them run their daily work. If the data stops, their work can also stop. Because of this risk, companies need networks that they can trust. These networks must support smooth and constant communication. One solution that supports this need is wireless cable. The term may sound strange at first. The word “wireless cable” means without a cable. The word “cable” means a physical wire. Because of this, the term can confuse people. However, the meaning becomes clear when we understand the service. To understand this service more clearly, we need to look at its basic concept and how it works. What is wireless cable? Wireless cable is a system that gives internet, data, and TV services without using physical cables. It does not need wires to connect every home or building. Instead, it uses radio signals to send information from one main station to users. Because of this, companies do not need to install cables in every place. This makes it easier and faster to set up, especially in areas where cable work is hard or expensive. In the telecom industry, companies use the term wireless cable to talk about fixed wireless services. These services provide internet and compete with normal cable companies. As more people need internet for work and daily life, the demand for wireless service keeps growing. This growth also increases the market size. According to Precedence Research, the global wireless connectivity market reached USD 103.87 billion in 2024. This shows that wireless service is growing fast. It also shows that wireless technology is now very important for business connectivity. How does a wireless cable work? Wireless cable systems work by sending data through radio waves in the air. A transmitter changes digital data into radio signals. These signals travel through the air until they reach a receiver. The receiver then changes the signals back into data that devices can use. The process starts at a broadcast tower or base station. From there, the signals spread across an area. Devices in that area use antennas to catch the signals and connect to the network. To keep the signal clear, the system uses certain frequency bands. These bands help reduce problems from other signals. The frequency that the system uses affects how it works. High frequencies can carry more data, but they do not travel far. Low frequencies can travel farther, but they carry less data. Because of this, network operators choose the frequency based on the size of the area and how much data people need. Wireless cable is now very common. According to the Wireless Infrastructure Association, more than 651,000 structures supported wireless systems in the United States by the end of 2024. This number shows that many people depend on wireless networks every day. Key types of wireless connection Wireless cable is one type of wireless communication. However, it is not the only type used in network systems. Different wireless technologies serve different needs. Because of this, businesses need to understand each option before choosing the right one. Making the right infrastructure choice Each wireless cable solution has its own benefits. It works well in areas where installing physical cables is difficult. However, wireless uses shared spectrum, so it can face speed and capacity limits when many users connect. Because of these limits, many businesses choose dedicated fiber for long-term growth. Fiber provides higher reliability, better security, and easy scalability. Dark fiber also gives full control over network capacity without relying on shared resources. ARNetprovides dark fiber across Southeast Asia as a stronger alternative to wireless cable. The company supports hyperscalers, OTT providers, and telecom companies in Malaysia, Indonesia, Singapore, and Thailand. It operates more than 10,000 km of fiber and connects over 60 data centers. This wide network helps businesses build stable and high-capacity connections between key markets. ARNet delivers long-haul, metro, and last-mile connections. Since it owns and manages its infrastructure, customers work with one provider, which reduces delays and improves control. The company also commits to more than 99.99% uptime and monitors the network in real time. With this strong fiber foundation, businesses gain reliable and scalable connectivity beyond the limits of wireless cable solutions. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Underground Cable Basics: Types, Depth, and Installation Guide
Underground cables play a very important role in today’s world. They carry internet, phone signals, and electricity from one place to another. Engineers place these cables under the ground to protect them from rain, heat, wind, and accidents. The placement provides cities and countries with a more stable and safe connection. More companies have started to use them. The market for underground fiber optic cables reached USD 13 billion in 2024, based on GM Insights. Businesses need strong and stable networks to support more data use. Understanding how these systems work helps companies make better choices for their network plans. This is helpful for businesses that want to expand to many locations. What type of cable is used underground? Fiber optic, copper, and power are the main types of underground cables. Fiber optic sends data as light signals through glass or plastic fibers. This allows very fast data transfer over long distances. GSMA reported that 5G use drives higher demand for fiber, with global 5G use expected to reach over 56% by 2030. Copper cables, such as twisted pair and coaxial, carry telephone, internet, and cable TV services. Workers install power lines underground to deliver electricity to homes and offices. Engineers choose the type of cable based on purpose and local regulations, ensuring each cable has strong insulation and outer protection. How deep should underground cables be buried? Contractors bury underground cables 24 to 36 inches deep, depending on the type and local rules. Telecommunication cables usually go at least 24 inches (60 cm) deep to avoid light digging. In 2024, the Fiber Broadband Association reported a median cost of $18.25 per foot for underground fiber. Power cables go deeper because they carry electricity, often 30 to 36 inches (75 to 90 cm) or more. Installers check soil conditions, traffic, cold weather, and local rules before work. How long does direct burial wire last in the ground? Direct burial fiber optic underground cables usually last 20 to 30 years. High-quality ones can last up to 40 years or more if installed properly. Their lifespan depends on several factors, especially water exposure. Water entering through a cracked jacket can damage the fibers inside. Soil type also matters. Wet or acidic soil wears them down faster than dry, stable soil. Proper installation of underground cables protects them from stress and damage during digging and placement. Regular checks and signal monitoring detect small problems early. Network teams can fix issues before they become bigger and more expensive. Building reliable networks with dark fiber Underground cables form the base of modern telecom networks. Companies that choose the right cable, bury it at the correct depth, and install it properly can make the network last for many years. Businesses enjoy stable and fast connections and can expand their network as their needs grow. Dark fiber gives companies full control of their network. ARNet operates more than 10,000 km of fiber network across Southeast Asia. The company supports hyperscalers and large businesses in Malaysia, Indonesia, Singapore, and Thailand. It provides long haul links, metro fiber networks, and last mile fiber delivery. This wide coverage allows businesses to build networks that match their exact needs. ARNet is the only provider in the region that controls all key licenses under one company. This leads to fewer delays and smoother coordination. The company builds and manages its own underground cables, so performance stays consistent in every location. It uses real-time monitoring to keep a committed SLA. Fast deployment and strong network control help ARNet provide businesses with stable and scalable dark fiber networks across Southeast Asia. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
7 Easy Ways to Improve Network Performance and Support Business Growth
Today, businesses need fast and reliable networks to stay ahead. A strong network helps companies save money and serve customers well. Knowing how networks work also helps businesses make better technology decisions. In this article, we explain what a good network is and share easy tips to improve it. These tips are very useful for companies using dark fiber networks to get the most value from their investment. What does network performance mean? Network speed and reliability shows how well a network works. It tells us how fast data moves and how stable the connections are between devices and services. A good network lets data travel quickly without problems. Key signs of a strong network include: By checking these indicators, companies can find problems and improve network performance. 7 Ways to improve network performance Here are simple steps to make network performance better: By following these steps, businesses can have a faster, smoother, and more reliable network. Factors that affect network performance Several things can slow down network performance: Paying attention to these factors helps companies optimize network operation. Building better networks for business success Good infrastructure is key to business success. In fact, strong connections help companies work faster and more efficiently. Moreover, knowing about network systems also helps businesses make better technology choices. For instance, businesses that need reliable networks can consider dark fiber as a smart option. ARNet provides dedicated fiber networks across Southeast Asia, with over 10,000 km of fiber connecting more than 60 data centers in Thailand, Malaysia, Singapore, and Indonesia. In addition, ARNet offers long-distance connections, city fiber, and last-mile fiber, which together ensure fast and stable network performance. Unlike other providers, ARNet builds and runs its own networks instead of reselling services. Furthermore, it controls all major licenses in the region. ARNet works with big companies and hyperscalers, providing over 99.99% uptime. Therefore, for businesses that need steady, high-quality connections, ARNet is a strong choice for long-term success. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Data Center Infrastructure Management: 4 Key Things Every Business Should Understand
Modern businesses use technology to store and process data. When a business grows, it needs systems that are stable and easy to manage. Because of this, data center infrastructure management is important for many companies. In simple terms, data center infrastructure management puts different systems into one place. It connects building systems, IT equipment, and control tools. With this system, teams can see power use, cooling, and server space in real time. This helps them manage the data center better and prevent service downtime. What is data center infrastructure management? Data center infrastructure management is a system that manages buildings and IT equipment in a data center. It brings building operations, IT control, and automation software into one system. This helps companies manage their hardware and keep data safe. The system does more than store data. It checks power use, cooling systems, and equipment health. This helps teams find problems early and keep the data center running smoothly. Understanding server size and rack units Most data centers for companies have between 500 and 5,000 servers.According to the Pew Research Center, many data centers have about 2,000 to 5,000 servers. At the same time, smaller data centers usually have around 500 to 2,000 servers. To arrange these servers, data centers use a simple size system called a rack unit. One rack unit, or 1U, is 1.75 inches tall. So, when a server is called 1U, 2U, or 3U, the “U” shows how much vertical space the server uses in the rack. Space and cooling requirements Physical space is very important in a data center. The size of the building affects layout, airflow, and equipment placement. Because of this, data centers are grouped by size. Servers produce heat when they run. Without good cooling, performance goes down and equipment can be damaged. How many servers fit in one rack? A standard 42U rack can hold 42 servers if each server is 1U. So, this rack is used a lot in the industry. This also helps data center teams plan how much space they need. But, servers can be different sizes depending on how powerful they are. For example, high-performance servers need 2U or 4U because they have more parts. That’s why data center software tracks all these server sizes in the facility. Building reliable infrastructure for growth Reliable operations depend on careful planning of power supply, cooling capacity, and physical space through effective data center infrastructure management. Alongside this, strong connectivity between data centers and networks also supports business expansion. In response to these requirements, dark fiber provides secure, high-speed, and low-latency connections for modern data centers. ARNet provides dark fiber to give fast, safe, and low-latency connections for hyperscalers and major players in Malaysia, Indonesia, Singapore, and Thailand. We own over 10,000 km of fiber and connect 60+ data centers across the region. Our network is fully built and operated in-house, with robust data center infrastructure management practices ensuring reliability and scalability for growing business needs. It includes long-distance, metro, and last-mile fiber to cover every connection requirement. This way, hyperscalers and major players enjoy stable, high-speed connections that help them perform better now and in the future. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Hyperscale Data Center Explained: Challenges, Growth, and Southeast Asia Expansion
Every time you watch a video, send a message, or save a file online, big facilities work behind the scenes. These are called a hyperscale data center. They store and process huge amounts of data to keep our digital world running. Research from Mordor Intelligence shows that the need for these centers is growing very fast. Most people do not see them, but they are very important. Without a hyperscale data center, services like Netflix, Facebook, and Gmail would not work. As we use more digital services, these centers become even more important. What does a hyperscale data center do? A hyperscale data center helps run large digital services by storing and processing a lot of data. It gives space and power for the biggest online platforms in the world. For example, it supports social media, cloud storage, and apps that millions of people use every day. A hyperscale data center is a very big building that has at least 5,000 servers. As mentioned in the earlier research, these centers provide more than 20 megawatts of power to run all the computers. To understand this, 20 megawatts can power about 16,000 homes. Companies like Amazon, Google, and Microsoft use these data centers to run their services worldwide. Other big software and content companies also rely on them. The demand for these facilities is growing fast. The same research shows the market reached USD 167.34 billion in 2025. Experts expect it will grow to USD 602.39 billion by 2030. This means the market will grow about 23.58% each year, making it one of the fastest-growing technology areas in the world. Why are hyperscale data centers expanding? The expansion of a hyperscale data center happens because of several factors. These factors include: Current challenges According to the previous report, Even though this industry is growing fast, it still faces three main problems: Connectivity needs in southeast asia A hyperscale data center needs strong infrastructure to work well, store large amounts of data, and grow when demand increases, especially in Southeast Asia. More people are using digital services, so reliable networks and systems are becoming very important in the region. To support this demand, big cloud companies are investing billions in Malaysia, Indonesia, Thailand, and Singapore. These data centers also need stable and fast connections. ARNet provides dark fiber networks to give them this connectivity. Our network covers over 10,000 kilometers and links 60 data centers across the region, keeping them connected. We have all the telecom licenses needed in each country, so our customers can work with a single provider. Because we build and maintain our own network, we can provide fast setup and high-quality service for a hyperscale data center. This network focuses on major cities like Bangkok, Kuala Lumpur, Johor Bahru, Singapore, Jakarta, and Batam, where demand is highest. As Southeast Asia’s digital economy grows, strong connections become even more important. ARNet gives operators the foundation they need for their networks. Companies planning a new hyperscale data center in the region can rely on our solutions to support their growth. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet