Optical network terminal ont. PON equipment. Building an optical network

Terminals optical network(ONT)

Passive optical network is a development that is predicted to have a great future. PON works on the principle of transmitting light signals over optical fiber.

What is an ONT optical modem?

The optical network architecture assumes the presence of a central node module, abbreviated as ONU and ONT devices. In a passive ONT network, the router plays a critical role. A remote ONT node with wifi is used as client equipment in FTTH scenarios. In order to connect external devices, the optical ONT has Ethernet and FXS ports, a connector for an optical cable, and Wi-Fi.

The subscriber receives the full resource of the optical cable, which ends up in his apartment, which distinguishes the optical network from home network operators, when the channel allocated to the house is equally divided among all users.

Where is the ONT modem used?

The ONT subscriber terminal provides GPON-based broadband access to apartment buildings and entire residential complexes. It also seems advisable to buy an ONT modem to equip cottage villages with Internet and high-quality telephony, office buildings and premises, business centers, student campuses, etc.

ONT terminal is an excellent solution for cases where there are technical difficulties in using cable systems, but constant access to the Internet is required, a network with good throughput, high-quality telephony, digital television. When using fiber optics, such problems are solved simply and quickly.

The wide scope of operation is determined by a rich list of services, which can be supplemented by services such as video surveillance, fire alarms, etc.

Advantages and capabilities of ONT devices

PON technology and, in particular, ONT equipment have undeniable advantages:

Adequate final cost of building a network. Using one optical fiber you can connect an impressive number of subscribers.

It is possible to create a distribution infrastructure and lay the basis for the subsequent development of the network and the provision of a wide range of services. The network is expanded without compromising the existing system.

The technology is flexible and can be used in a variety of FTTx family configurations.

Setting up ONT and maintaining equipment is not difficult and does not require significant costs.

The bandwidth of the Internet channel is practically unlimited.

The GPON ONT terminal is highly reliable, which is primarily due to the small number of active elements. For the same reason, the network demonstrates low sensitivity to adjacent communication lines.

Today, the price for ONT remains relatively high, but due to all the advantages new technology this is completely justified.

Advantages of Huawei ONT

Huawei brand equipment is very popular. These are functional, high-performance devices capable of providing services such as HD video, VoIP and the Internet. They are focused on a wide range of services. Huawei's lineup includes several hardware models that can meet your needs different groups users.

Where can I buy ONT GPON on favorable terms?

To the request “buy ONT” in global network There are several large equipment suppliers. But TelSys company - the best option. You can always buy an optical network terminal from us at favorable conditions. We supply and service modern telecommunications equipment and are an authorized partner of the largest Russian suppliers in the field of IT development.

It would be advisable for operators, providers and to corporative clients. TelSys company offers favorable, completely transparent terms of cooperation for all clients who are going to buy an ONT optical modem from us.

We deliver equipment exactly on time and fulfill all warranty obligations. In our company, the price for ONT GPON remains affordable for different categories of clients.

Our assortment includes only high-quality, original equipment. Based on consumer requests, we have chosen the best for our clients, so in the TelSys catalog you can find Huawei ONT optical terminals in various modifications.

We undertake the comprehensive implementation of projects of any complexity for the development and installation of access networks. The design and installation of communication systems is carried out by experienced specialists taking into account customer requirements, which guarantees high quality services provided.

Thanks to GPON from Rostelecom, users were able to connect high speed internet on your own computers. You can learn more about the technology by deciphering the abbreviation, which stands for gigabite passive optical network or translated into Russian – gigabit passive optical network.

GPON from Rostelecom

The basis GPON technology from Rostelecom, which has been awarded more than once positive feedback both among professionals and users, was laid down many years ago. Development began in the 80s of the last century. Tests were first carried out in 1987 in England. The second stage was a consortium in 1995 dedicated to PON standardization. Developers and the world's largest Internet providers took part in it. Within three years of the consortium, the first optical networks accessible to a wide audience were installed in the United States and Japan. Further, the technology began its rapid development in other countries of the world.

In Russia, the implementation of GPON is now at an early stage. Providers MGTS and Rostelecom are actively participating in this event. The transition to fiber optics after long-term use of copper cable is quite difficult, as it requires significant costs for laying new lines and purchasing compatible equipment. Nevertheless, Rostelecom is ready to offer GPON connections not only in large cities, but also in some private sectors outside them.

The GPON connection diagram from Rostelecom is quite simple. The provider supplies optical fiber to each of the houses, and then, using a switch, the cable is divided and sent to compatible user equipment. In the apartment itself, the signal is converted by a special router, which has an input for fiber optics. Such equipment is quite expensive, so users often rent it from a provider.

Important: Before setting up GPON from Rostelecom for own equipment V home network, you need to connect the Internet operator cable and one computer via the LAN connector. After this, you can log into the device’s web interface.

Setting up equipment for GPON from Rostelecom

Suitable equipment for GPON connection can be rented directly from Rostelecom. If this option suits you, the provider will personally configure the network devices in your home. In cases where equipment is purchased separately, setup costs will not be included in the initial connection. Therefore, you will need to enter the Internet settings on the router yourself.

To successfully create a fiber optic network, you should pay attention to Special attention for the selection of equipment. The first thing to consider is the functionality of the router. If you need, in addition to the Internet, to also be able to connect IPTV and telephony, it is recommended to purchase a terminal. In other cases, it will be enough to have a simple fiber optic router.

One of optimal models terminals, which can be rented or purchased from Rostelecom, is G PON ONT RFT620. In addition to four LAN ports for connecting computers to the Internet and a built-in Wi-Fi module, such a device will allow you to take advantage of all the advantages of IP and classic telephony.

Having connected the GPON cable from Rostelecom and the computer via the LAN connector, you need to turn on the equipment and go into its settings. To do this, you will need to open any browser and write the IP terminal in the address bar. GPON ONT RFT620 from Rostelecom uses the IP address 192.168.1.254 to enter the default settings. Before entering software device will need to enter a login and password, which have the values user/user. After this, you will be taken to the firmware home page. The Internet settings on this model are already predefined by the provider and do not need to be changed.

By default, the equipment does not have a wireless connection, which will need to be activated manually. Wi-Fi on a router from Rostelecom model GPON ONT RFT620 can be enabled in the “ Wireless network" Before activation, it is recommended to pay special attention to the security settings that will help protect the network from unauthorized access.

GPON technology – new step in the evolution of broadband Internet connectivity. Thanks to high speed and network stability, users receive virtually unlimited opportunities for working and relaxing at the computer.

From a design point of view, ONT - an optical network terminal - is a VLAN switch with an optical port and several 100M/1G copper ports, an FXS port for telephony (SIP) and a CATV (RF) port for outputting a CATV signal.

Each ONT subscriber terminal has a built-in MAC address filter. When receiving a packet, ONT checks the ownership of the packet and, if the packet does not belong to it, discards it. ONT management occurs directly from the OLT, while the OLT considers the ONT to be a “subport” of its port, which has its own ports, that is, the following hierarchy is observed: OLT port -> ONT -> ONT port.

Each ONT subscriber terminal has a compact plastic case that can be mounted on a wall. As a rule, the terminal model is equipped with a system of ventilation holes on the bottom and side surfaces. This helps to establish the optimal temperature regime, which has a positive effect on the operation of the equipment.

The subscriber terminal is also equipped with lights indicating the operating mode of the device.

Operating principle of the ONT user terminal

Using an optical network terminal ONT allows you to build completely passive optical networks between the central OLT terminal and ONT terminals. The path from the station terminal to the subscriber terminal looks like this:

In the building, the fiber is divided by optical splitters into the required number of subscribers
From splitter optical cable lead to a subscriber
The subscriber has an ONT terminal installed.

A home PC is connected to the ONT subscriber network terminal using Ethernet cable or via WiFi, TV using a coaxial cable type RG-6 via the CATV (RF) port and VoIP telephony using telephone cable via FXS (RJ-11) port.