Blogs

Do I need a router if I have an ONT/ONU? by the original factory Focuscom

Views : 558
Author : Juwei
Update time : 2022-12-15 19:19:38

Do I need a router if I have an ONT?

This is the second in a series of articles about ONU/ONT and PON technology. Check out our other post, " what is ONT, how does it work"

 

Before answer this question, let's be clear what is an the PON technology?

What is PON, What is a ONT & ONU?

Broadband optical fiber access is mainly based on the PON technology. The devices on the user side of the PON system are collectively referred to as ONUs without the specific forms of the devices.
An ONT can be regarded as an Optical Network Unit (ONU), but it is strictly a part of the ONU. The difference between the two is that ONT is an optical network terminal designed to connect end users; An ONU is an optical network unit, and there may be other networks between ONU to the end user . For example, the ONU can coonect gateway devices such as xDSL or Ethernet switches, and then access the network user.
The ONT is usually located in the user's home and connects to various devices accessing network downward and to the Internet via optical fiber upwards.


What is the Difference Between ONT & ONU?

FTTX PON topology
 
In FTTX network, some devices that are necessary to complete the fiber to the home (FTTH) link. One of which is the ONT/ONU. ONT refer as Optical Network Terminal. ONU refer as Optical Network Unit.
An ONT and an ONU is actually the same thing. ONT and ONU both refer to the consumer end equipment in an optical fiber to the home (FTTH) communication link. But if you want to get technical, there is one difference and that is that ONT is an ITU-T term, whereas ONU is an IEEE term. ITU-T and IEEE are two different telecommunication standards.

But you can think of an ONT and ONU as the same thing.
  
Passive Optical network PON


ONT and ONU

In the FTTX application, mainly are FTTH, FTTO and FTTB, there are different user-side devices in different applications.  It is single user at user-side in FTTH and FTTO, which is ONT;  and it is multi-user sharing in FTTB, which is ONU.

ONU&ONT

What is the purpose of an ONT/ONU?

On a FTTX network, the ONT/ONU is located at your premise (residential or commercial). The purpose of this device is to use optical fiber to connect to the passive optical network (PON) and communicate with your Internet service provider to get an Internet connection.
 
 

How an ONT/ONU works?

ONU converts optical signals transmitted via fibers to electrical signals. These electrical signals are then sent to individual subscribers. In general, there is a distance or other access network between ONU and end user's premises. Furthermore, ONU can send, aggregate, and groom different types of data coming from the customer and send it upstream to the OLT. Grooming is the process that optimizes and reorganizes the data stream so it would be delivered more efficiently. OLT supports bandwidth allocation that allows making smooth delivery of data float to the OLT, which usually arrives in bursts from the customer. ONU could be connected by various methods and cable types, like twisted-pair copper wire, coaxial cable, optical fiber, or through Wi-Fi.
 
How does an onu work
Do I need a router if I have an ONT?
It depens on different application scenarios as below,:
1) In the FTTB application scenario, the PON system is connected to ONT of SFU (Single Family Unit) / Multi-Dwelling Unit (MDU) /Multi-Tenant Unit (MTU). The ONT (ONU) Ethernet port is required to connect to the router for dialing up to access network.
2) In FTTH and FTTO application scenarios. The PON system connects to the ONT of HGU (Home Gateway Unit) and SBU (Single Business Unit). HGU/SUB  (ONU+ROUTE) is a gateway device and supports routing, NAT, and WIFI. The connected PC and mobile terminal can directly access the Internet through the HGU without dialing up. So it doesn't need to be connected to the router for dialing up to access the network.
 
Related News
Read More >>
What is ONT/ONU and how does it work? By Focuscom-the FTTX Solution Provider What is ONT/ONU and how does it work? By Focuscom-the FTTX Solution Provider
Dec .01.2022
ONT is an interface between the Internet Service Provider (ISP) and the end user of fiber Internet.  It’s an integral part of the fiber optic internet system because it converts optical signals into information your computing devices can digest.  In other words, it works as a modem if you get your broadband Internet through Fiber to the Premises (FTTP).
What is XGPON ? by original ONU/OLT factory Focuscom What is XGPON ? by original ONU/OLT factory Focuscom
Nov .15.2022
Broadband access Gigabit access era, 10G PON PON has become the mainstream technology, the traditional PON is to 10G PON upgrade, broadband will increase 10 times. 10G PON scale commercial launch, will directly help FTTH to Gigabit access rate evolution. The company is located in:
About“China’s broadband development white paper” About“China’s broadband development white paper”
May .30.2022
The China Academy of Information and Communications Technology is the most important research institute in the field of information and communications (ICT) in China. A lot of work has been done on the national development strategy of information communication, independent innovation, industrial policy, industry management, planning and design, technical standards, testing and certification, and on 4G/5G, industrial Internet, smart manufacturing, mobile Internet, Internet of Things, Internet of Vehicles, future network, cloud computing, big data, artificial intelligence, virtual reality/augmented reality (VR/AR), smart hardware, etc. In-depth research and prospective layout of network and information security are carried out.
In Recent Years, The Information And Communication Industry Has Grown Steadily In Recent Years, The Information And Communication Industry Has Grown Steadily
Jan .06.2022
The information and communication industry is a strategic, basic and leading industry that supports economic and social development, and provides powerful new momentum for economic and social development. In the first 10 months of 2021, my country's telecom business revenue and profits maintained steady growth, and the total telecom business grew rapidly; 5G network construction and application continued to advance, and the user scale continued to expand; the number of cellular Internet of Things and IPTV users grew rapidly, and emerging services The driving effect on telecommunication business continued to appear.
pop_close
pop_main
Chat with us online
Hello this is ruby here, any questions please feel free to contact me or send email to [email protected]