SH68-68-EP   |   数字线  | 保持信号的稳定性和清晰度

型号：SH68-68-EP

类别：数字线

成色：全新，非全新

库存：有

质保：一年

品牌：NI

特征：

杂项电缆和电缆适配器

设备种类繁多

NI SH68-68-EP 屏蔽 数字 线 （2 米）

68针D-SUB母头至68针D-SUB母头，双绞线，屏蔽多功能线缆—SH68F-68F-EPM电缆，有时也称为SH68-68-EPM，用于将NI DAQ 68针设备连接到68针配件。SH68F-68F-EPM电缆具有D型连接器，并提供不同的长度。

双绞线的工作原理

SH68-68-EP 双绞线的工作原理主要基于电磁干扰的减少和信号衰减的抑制：

电磁干扰的减少：SH68-68-EP 双绞线由两根相互绞合的导线组成，这两根导线在传输信号时，会互相产生电流并形成一个磁场。这个磁场可以有效地抵消其他电子设备产生的电磁干扰，从而降低电磁干扰对数据传输的影响。

信号衰减的抑制：双绞线中的每根导线都是由多根铜线细丝组成，这些细丝被紧密地绞合在一起，形成了一个更加坚固的结构，有助于减少信号在传输过程中的能量损失，保持信号的稳定性和清晰度。

三、双绞线的应用

SH68-68-EP 双绞线因其优异的性能被广泛应用于各种通信、网络和电视设备中：

电话系统：用于传输语音信号，具有抗干扰能力强、信号传输质量高、可靠性好的特点。

计算机网络系统：SH68-68-EP 用于传输数字信号，特别是以太网等基于双绞线的网络，具有传输速度快、数据保密性强、抗干扰能力强等特点。

电视信号传输系统：用于传输视频信号，频率传输范围广，适合传输高清视频信号，信号传输质量高。

音响系统：可用于传输音频信号，传输效果稳定、效果好、普及度高。

四、双绞线的优缺点

优点：

价格低廉，取材方便。

传输距离适中，适用于短距离、小范围内的数据传输。

抗干扰能力强，信号传输质量高。

缺点：

相对于光纤等传输介质，双绞线的传输距离和数据传输速度有限。

在强电磁干扰环境下，可能需要采取额外的屏蔽措施以保证数据传输质量。

Model: SH68-68-EP

Category: Digital lines

Finish: New, not new

Stock: Yes

Warranty: One year

Brand: NI

Features:

Miscellaneous cables and cable adapters

A wide range of equipment

NI SH68-68-EP Shielded Digital Wire (2 m)

68-pin D-SUB female to 68-pin D-SUB female, twisted pair, shielded multifunction cable - SH68F-68F-EPM cable, sometimes called SH68-68-EPM, is used to connect NI DAQ 68-pin devices to 68-pin accessories. SH68F-68F-EPM cables have D-type connectors and are available in different lengths.

How twisted pair works

The working principle of SH68-68-EP twisted pair is mainly based on the reduction of electromagnetic interference and the suppression of signal attenuation:

Reduction of electromagnetic interference: The SH68-68-EP twisted pair consists of two wires twisted together, which generate an electric current from each other and form a magnetic field when transmitting signals. This magnetic field can effectively counteract electromagnetic interference generated by other electronic devices, thereby reducing the impact of electromagnetic interference on data transmission.

Suppression of signal attenuation: Each wire in the twisted pair is composed of multiple copper wire filaments, which are tightly twisted together to form a more robust structure, which helps to reduce the energy loss of the signal during transmission and maintain the stability and clarity of the signal.

Third, the application of twisted pair

SH68-68-EP twisted pair wire is widely used in a variety of communication, network and television equipment because of its excellent performance:

Telephone system: used to transmit voice signals, with strong anti-interference ability, high signal transmission quality, good reliability.

Computer network system: SH68-68-EP is used to transmit digital signals, especially Ethernet and other twisted pair based networks, with fast transmission speed, strong data confidentiality, strong anti-interference ability.

TV signal transmission system: used to transmit video signals, wide frequency transmission range, suitable for transmitting high-definition video signals, high signal transmission quality.

Sound system: can be used to transmit audio signals, transmission effect is stable, good effect, high popularity.

Four, the advantages and disadvantages of twisted pair

Advantages:

Low price, convenient materials.

The transmission distance is moderate, suitable for short distance and small range of data transmission.

Strong anti-interference ability, high signal transmission quality.

Cons:

Compared with the transmission medium such as optical fiber, the transmission distance and data transmission speed of twisted pair are limited.

In strong electromagnetic interference environments, additional shielding measures may be required to ensure data transmission quality.