製品
Overview.
Telecommunications plays a crucial role in the modern society by enabling fast communication regardless of geographic barriers and instant information access through internet. It does not only facilitate every individual’s life, but also contributes to education, healthcare, businesses and the general economy. On the other hand, telecom infrastructure has evolved significantly over time, transitioning from traditional conventional base stations to more advanced technologies such as Active Antenna Systems.
Active Antenna System Block Diagram
Designing a telecom base station requires careful consideration of various factors, including frequency band, antenna technology, power amplifier, network architecture, component selection and more. Thus, AAS block diagram below serves only as a concise reference for anyone interested.
Telecom Conquer Fuse solution
1. Active Antenna System
Compared to passive antennas, active antennas integrated RF signal transceivers, receivers, amplifiers, Ethernet, and other technologies within the antenna itself. Therefore, the need of a power supply and fuse protection becomes essential. The DC power requirements of an active antenna are typically low, thus we recommend using SMD or cartridge fuses as listed in the table below. These fuses are primarily utilized in power supply, RF transceiver, and Ethernet applications.
2.Baseband Unit (BBU)
The power requirements of the BBU vary greatly depending on the size of the base station and whether it supports multiple tower sites. Within the baseband unit, integrated Ethernet switches, power distribution units, and converters are typically present, all of which may require fuse protection. The table below lists high-efficiency fuses that could be suitable for BBU applications.
3. Power Supply
The power supply unit must incorporate fuse protection unless it operates at very low power levels. Typically, the input power would be AC mains, necessitating AC fuse protection at its entry point. Additionally, since telecom applications commonly operate on DC power, AC/DC or DC/DC converters are often integrated, necessitating fuses for protection purposes. Cartridge or Power fuses are commonly used in power supply applications.
RRU protection & Telecom Application Map
Despite Active Antenna Systems being the latest technology, passive antennas remain widely used worldwide. In the case of passive antennas, the RRU (Remote Radio Unit/Head) should be protected by Surge Protective Devices, fuses, and circuit breakers. The RRU typically includes a built-in Class 1 SPD to safeguard the equipment from lightning strikes and network transients. Therefore, the recommended fuse or circuit breaker rating is sized to avoid tripping in the event of SPD operation. The suggested fuse current rating typically ranges from 20A to 40A. Please refer to the application map below for Conquer fuse recommendations.
Fuses offer an efficient and cost-effective solution to safeguard Telecom systems against overcurrent activities. The above application guide offers valuable insights into appropriately sizing fuses to ensure optimal circuit protection, preventing overcurrent situations, and ensuring continuous system operation.
For more detail information on Conquer fuses, please visit https://www.conquer.com.tw/product
