Video Cable SYV-75-3_安徽中盛电气集团有限公司官方网站

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产品名称：Video Cable SYV-75-3
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添加时间：2024-07-03 11:07:14
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介绍：

同轴电缆SYV75-2 SYV75-3

Coaxial cable SYV75-2 SYV75-3

SYV同轴电缆的介绍：

Introduction to SYV coaxial cables:

1、视频同轴电缆采用GB/T14864-1993******标准，广泛应用于通讯、广播、计算机、等领域。视频同轴电缆产品特性：视频同轴电缆传输性能及机械性能的稳定；阻抗均匀;抗*力强. 视频同轴电缆部分产品结构一览表：SYWV（物理发泡）SYV（聚乙烯绝缘）SYF,SYFF（氟塑料绝缘及护套）

1. The video coaxial cable adopts the national standard GB/T14864-1993 and is widely used in communication, broadcasting, computer, and other fields. Features of video coaxial cable products: stable transmission performance and mechanical performance of video coaxial cables; Impedance uniformity; Strong resistance to * List of product structures for video coaxial cables: SYWV (physical foaming) SYV (polyethylene insulation) SYF, SYFF (fluoroplastic insulation and sheath)

2、视频同轴电缆规格型号内导体mm 绝缘外径 mm 成品外径 mm SYwV50-2 1x0.68 2.2 4 SYwV50-3 1x0.9 2.95 5.8 SYwV50-5 1x1.4 4.8 7.9 SYwV50-9 7x0.95 9 12.2 SYV50-12 7x1.15 11.5 15 SYwV50-7 7x0.75 7.25 11 SYV50-15 7X1.54 15 19 SYV50-17 19X1.04 17.3 22 SYV75-3 7X0.17 3 5 SYV75-4 1X0.59 4.8 6 SYV75-5 1X0.75 5.7 7.9 SYV75-7 1X1.15 7.25 10.3 SYV75-9 1X1.37 9 12.2 SYV75-12 7X0.63 11.5 15

2. Video coaxial cable specification model inner conductor mm insulation outer diameter mm finished outer diameter mm SYwV50-2 1x0.68 2.2 4 SYwV50-3 1x0.9 2.95 5.8 SYwV50-5 1x1.4 4.8 7.9 SYwV50-9 7x0.95 9 12.2 SYV50-12 7x1.15 11.5 15 SYwV50-7 7x0.75 7.25 11 SYV50-15 7X1.54 15 19 SYV50-17 19X1.04 17.3 22 SYV75-3 7X0.17 3 5 SYV75-4 1X0.59 4.8 6 SYV75-5 1X0.75 5.7 7.9 SYV75-7 1X1.15 7.25 10.3 SYV75-9 1X1.37 9 12.2 SYV75-12 7X0.63 11.5 15

产品结构：

Product structure:

射频同轴电缆是指有两个同心导体，而导体和屏蔽层又共用同一轴心的电缆。射频同轴电缆绝缘材料采

RF coaxial cable refers to a cable with two concentric conductors, and the conductor and shielding layer share the same axis. RF coaxial cable insulation material procurement

用物理发炮聚乙烯隔离铜线导体组成，在里层绝缘材料的外部是另一层环形导体即外导体，外导体采用铜带成型、扎纹；或是采用铝管结构；或是采用编织结构，然后整个电缆由聚氯乙烯材料的护套包住。

Composed of physically fired polyethylene insulated copper wire conductors, with another layer of annular conductor, namely the outer conductor, on the outside of the inner insulation material. The outer conductor is formed with copper tape and tied with patterns; Or use aluminum tube structure; Alternatively, a woven structure can be used, and the entire cable can be wrapped in a PVC sheath.

产品分类：

Product classification:

目前，常用的射频同轴电缆有两类：50Ω和75Ω的射频同轴电缆。

At present, there are two types of commonly used RF coaxial cables: 50 Ω and 75 Ω RF coaxial cables.

特性阻抗75Ω射频同轴电缆常用于CATV网，故称为CATV电缆，传输带宽可达1GHz，目前常用CATV电缆的传输带宽：750MHz。

RF coaxial cables with a characteristic impedance of 75 Ω are commonly used in CATV networks, hence they are called CATV cables, with a transmission bandwidth of up to 1GHz. Currently, the transmission bandwidth of commonly used CATV cables is 750MHz.

特性阻抗50Ω射频同轴电缆主要用于基带信号传输，传输带宽为1～2OMHz，

RF coaxial cables with a characteristic impedance of 50 Ω are mainly used for baseband signal transmission, with a transmission bandwidth of 1-2OMHz,

一般特性阻抗50Ω细同轴电缆的传输距离为180米，粗同轴电缆可达1000米。

The transmission distance of a thin coaxial cable with a general characteristic impedance of 50 Ω is 180 meters, while a thick coaxial cable can reach up to 1000 meters.

射频同轴电缆的得名与它的结构相关。射频同轴电缆也是局域网中的传输介质之一。它用来传递信息的一对导体是按照一层圆筒式的外导体套在内导体（一根细芯）外面，两个导体间用绝缘材料互相隔离的结构制选的，外层导体和中心轴芯线的圆心在同一个轴心上，所以叫做射频同轴电缆，射频同轴电缆之所以设计成这样，也是为了防止外部电磁波干扰异常信号的传递。

The name of RF coaxial cable is related to its structure. RF coaxial cables are also one of the transmission media in local area networks. The pair of conductors it uses to transmit information are selected according to a structure of a cylindrical outer conductor sheathed outside the inner conductor (a thin core), and the two conductors are isolated from each other by insulating materials. The center of the outer conductor and the central axis core wire are on the same axis, so it is called a radio frequency coaxial cable. The reason why the radio frequency coaxial cable is designed in this way is also to prevent external electromagnetic waves from interfering with the transmission of abnormal signals.

射频同轴电缆根据其直径大小可以分为：粗射频同轴电缆与细射频同轴电缆。粗缆适用于比较大型的局部网络，它的标准距离长，可靠性高，由于安装时不需要切断电缆，因此可以根据需要灵活调整计算机的入网位置，但粗缆网络须***安装收发器电缆，安装难度大，所以总体造价高。相反，细缆安装则比较简单，造价低，但由于安装过程要切断电缆，两头须装上基本网络连接头（BNC），然后接在T型连接器两端，，这是目前运行中的以太网所发生的故障之一。

RF coaxial cables can be divided into coarse RF coaxial cables and fine RF coaxial cables based on their diameter. Coarse cables are suitable for relatively large local networks, with long standard distances and high reliability. As installation does not require cutting off cables, the computer's network access position can be flexibly adjusted according to needs. However, thick cable networks must install transceiver cables, which is difficult to install, resulting in high overall cost. On the contrary, the installation of thin cables is relatively simple and cost-effective, but due to the need to cut off the cables during the installation process, basic network connectors (BNC) must be installed on both ends and then connected to both ends of the T-connector, which is one of the faults that currently occur in operating Ethernet.