Title: Latest Yunnan Communication Cable Specification Table
Title: Yunnan Province Communication Cable Specification Table UpdateThe Yunnan Provincial Communications Department has recently issued an updated communication cable specification table. The latest table includes various specifications for different types of communication cables, including fiber optic, copper wire, and coaxial cable. This table is essential for engineers, technicians, and other professionals in the communication industry who need to specify or purchase communication cables for various applications.The updated specification table covers a range of communication cable types, including single-mode fiber optic cables, multi-mode fiber optic cables, optical fiber connectors, and coaxial cables. Each type of cable has its specific requirements for parameters such as bandwidth, wavelength, and attenuation. The table also provides information on the minimum and maximum length that each cable can be used for, as well as the recommended installation methods and precautions for handling these cables.The update to the Yunnan Provincial Communication Cable Specification Table aims to ensure that all communication cables meet the highest industry standards and provide reliable performance in various communication systems. This table will help professionals in the field to make informed decisions when specifying or purchasing communication cables, leading to improved network reliability and overall efficiency.
Introduction:
Communication cables play a crucial role in the development of modern society. They facilitate the transmission of information, data, and voice over long distances, connecting people and devices worldwide. In China, Yunnan is known for its rich natural resources and diverse culture, making it an important center for communication infrastructure development. This article focuses on the latest Yunnan communication cable specification table, which outlines various types, sizes, and materials of communication cables used in the region.
Yunnan Communication Cable Specification Table:
The following is a detailed breakdown of the different types of communication cables used in Yunnan, along with their corresponding specifications:
1. Fiber Optic Cables (Single-mode, Multi-mode)
a) Single-mode Fiber Optic Cable (SMF): Used for long-distance communication, high bandwidth applications, and data centers.
Spec:
* Core: 12/24/48/56/100/125 μm纤芯直径
* Jacket: Fused Polyethylene (PE)绝缘层，厚度通常为0.85 mm或1.25 mm
* Dimensions: 10/25/32/50/65/110 mm直径，长度可根据需求定制
* Wavelengths: Nd:YAG(365 nm),SLM(1310 nm),SMWDM(多模)
b) Multi-mode Fiber Optic Cable (MMF): Designed for short-distance communication and fiber to fiber connections.
Spec:
* Core: 62.5/125 μm纤芯直径，有时还包括50 / 62.5 μm等其他纤芯直径
* Jacket: Fused Polyethylene (PE)绝缘层，厚度通常为0.85 mm或1.25 mm
* Dimensions: 12/24/48 mm直径，长度可根据需求定制
* Wavelengths: SMF(多模),MMF(单模)
2. Coaxial Cables (同轴电缆)
Spec:
* Type: Shielded coaxial cable with plastic insulation (PVC) jacket and copper conductor core
* Diameter: 75 μm, 90 μm, 125 μm, or 250 μm
* Length: Available in various lengths up to several kilometers
* Operating frequency range: VHF (30-300 MHz), UHF (470-860 MHz), and SDH (±20 MHz to ±400 MHz for multi-channel systems)
* Signal strength: Up to 100dB(加性噪声抗扰度， AMR) at the ends of the cable, depending on the distance between endpoints and the cable's quality factors
3. Wireless Communications Cables (无线电通信电缆)
a) Wi-Fi antennas: Used for wireless local area network (WLAN) installations, including indoor and outdoor coverage. Common frequencies include 2.4 GHz and 5 GHz.
Spec:
* Material: Plastic or metal antenna housing, coaxial wire cable with PVC insulation and copper conductor core
* Dimensions: Variable depending on the type and model of antenna
* Connectors: RJ45 connector for wired connection to WLAN devices or wireless access points (APs)
b) Cellular antennas: Used for mobile phone and broadband internet connectivity via cellular networks (如中国移动、中国联通和中国电信的基站).
Spec:
* Material: Steel or aluminum antenna housing, coaxial wire cable with PVC insulation and copper conductor core
* Dimensions: Variable depending on the type and model of antenna
* Connectors: RS232 or RS485 connector for wired connection to base stations or mobile device receivers
Conclusion: The Yunnan Communication Cable Specification Table provides a comprehensive overview of the various types of communication cables used in the region, along with their key features, dimensions, and operating frequencies. As technology continues to evolve, new communication cable solutions will likely be developed to meet the growing demand for faster, more reliable connectivity across Yunnan's diverse geography and industries.
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