Knowledge

A Brief Introduction to Wi-Fi Antennas

Antenna is a passive device, mainly affects the OTA power and sensitivity, coverage and distance, and OTA is an important means to analyze and solve the throughput problem, usually we mainly for the following parameters (the following parameters do not consider the laboratory error, the actual an... Read More

WIFI 2.4G and 5G

Many users will find that after the wireless router background, using the mobile phone for wireless network connection, but found that there are two WiFi signal names, a WiFi signal is the traditional 2.4G, another name will have a 5G logo, why will there be two signals?This is because the wirele... Read More

Introduction of BOSA packaging structure of optical device

What is an optical device, a BOSA The optical device BOSA is a part of the constituent optical module, which consists of devices such as transmission and reception. The optical transmission part is called TOSA, the optical reception part is called ROSA, and the two together are called BOSA. Its w... Read More

Status and activation process of the ONU

Initial status (O1) The ONU in this status has just powered on and is still in LOS / LOF.Once a downstream is received, the LOS and LOF are eliminated, and the ONU moves to the standby status (O2). Standby status (O2) The ONU of this status has received the downstream, waiting to receive the netw... Read More

Basic transmission process of VoIP

Traditional telephone network is voice by circuit exchange, the required transmission broadband of 64kbit/s. The so-called VoIP is the IP packet exchange network as the transmission platform, the simulated voice signal compression, packaging and a series of special processing, so that it can use ... Read More

The VLAN (Virtual Local Area Network) is named “Virtual LAN” in Chinese.

The VLAN (Virtual Local Area Network) is named “Virtual LAN” in Chinese. VLAN divides a physical LAN into multiple logical LAN, and each VLAN is a broadcast domain.Hosts in VLAN can interact with messages through traditional Ethernet communication, while if hosts in different VLAN nee... Read More