On December 29. 2022, the latest Strategy Analytics report stated that 5G is the main contributor to the improvement of operator performance this year. In just a few months, 5G subscriptions increased from 819 million in June to 924 million in September, and surpassed 1 billion in the past 4-5 weeks.

At the same time, the global 5G development momentum continues to increase. By the end of this month, 5G networks will cover 36% of the world's population, and 5G mobile phones will soon account for half of global mobile phone sales. Previously, relevant data from the Ministry of Industry and Information Technology showed that as of the end of November, the total number of mobile phone users of China three basic telecommunications companies reached 1.684 billion. Among them, 5G mobile phone users reached 542 million, accounting for 32.2% of mobile phone users.

the report states that In China there were 524 million 5G users in October, up 48% from the beginning of the year, accounting for 31% of all connections. As a key market for 5G, China has made strong progress in enterprise services: China Mobile's 5G private network revenue rose 223% in the first half (with 4,400 projects), while China Unicom's 5G (virtual) private 2014 increased to 3416 in November.

Strategy Analytics expects 5G to continue to grow strongly globally in 2023. With 5G services in India going live last month, the market will make an additional contribution to Asia-Pacific growth next year, while more operators in Latin America will follow the examples of Brazil and Chile to expand the scope of 5G coverage.

Fiber optic closure, also known as fiber optic splicing closures, is a device used to provide space and protection for fiber optic cables spliced together. The fiber optic closure connects and stores optical fibers safely either in the outside plant or indoor buildings. It can provide protection for the fiber joint and the fiber cables since they have excellent mechanical strength and strong out shell, which ensures the joints are not damaged by the hostile environment.

Horizontal type fiber closure is like a flat or cylindrical case. This type of fiber splice closure is the most commonly used one in mounted aerials or buried underground. Horizontal type fiber optic closure usually contains one or more fiber splice trays to provide space and protection for fiber optic splices. Fiber splice trays used in different fiber optic splice closures may have different designs and fiber counts. The common fiber counts of flat fiber splice closure are 12 and 24 fibers.

Horizontal fiber optic splice closures are designed to be waterproof and dustproof. They have good adaptability and compression resistance, for they are commonly made of high tensile construction plastic. If attached to a pole or hung from wiring, these fiber splice closures need to be held firmly in place, to avoid damage from weather and wind.

The following picture shows a 96-fiber horizontal fiber optic splice closure. It has two input ports and two output ports providing space for 96 fiber splices. There are four standard 24-fiber splice trays stacked together inside the fiber optic splice closure.

When using the high-power EDFA, special attention should be  paid to the following: 

1. Do not plug or unplug the patch cords directly when it is powered on. Otherwise the output port  will be burned out, then the output power will be reduced, and the EDFA will not work. It is recommended to plug or unplug the patch cord under shutdown conditions. 

2. the following measures need to be taken if you have to plug or unplug the patch cords when the EDFA is powered on:A. reduce the EDFA output through the front panel buttonsB. reduce the EDFA output through the SNMP 

3. Please check about the patch cord carefully before installing it. If its end is dirty or damaged, it will also cause power reduction or no output.

GPON OLT complies with the standards of ITU-T G984/G.988, IEEE 802.3x, and FSAN. It is 1U height 19 inch rack mount device. It is appropriate to be deployed in compact room enviornment. The OLTs can be used for "Triple-Play", VPN, IP Camera, Enterprise LAN and ICT applications.

1. Stronger compatibility for Huawei, ZTE and other mainstream ONUs.

2. Easy configuration, plug & play, fast deployment.

3. Easy remote managemet based on EMS / WEB / Telnet / CLI / OMCI.

4. Dual power supply for backup.

5. L3 OLT provides Layer 3 dynamic routing protocols of RIP/OSPF.

PON network is a point to multiple points passive optical network. 

PON network consists of the Optical Line Terminal (OLT), Optical Distribution Network (ODN) and Optical Network Unit (ONU). PON is a typical passive optical fiber network, which means that (in the optical distribution network) does not contain any electronic devices and electronic power supplies, and ODNs are all composed of passive devices such as optical splitters (Splitters). source electronics.