adsl mss

ADSL：不对称数字用户线 (ADSL: Asymmetric Digital Subscriber Line )

ADSL is an abbreviation of "Asymmetric Digital Subscriber Line".

ADSL是“非对称数字用户线”的缩写 。

It is a one of the category of digital subscriber line (DSL) technology, a data communications technology that allows more rapidly data transmission over copper telephone lines in comparison to a conventional voice band modem can make available. ADSL varies from the less widespread symmetric digital subscriber line (SDSL).

它是数字用户线(DSL)技术的一种，它是一种数据通信技术，与传统的语音频带调制解调器相比，它可以通过铜线电话线更快地传输数据。 ADSL与不太普遍的对称数字用户线(SDSL)不同。

In ADSL, bandwidth and bit rate are supposed to be asymmetric, which signifies larger on the way to the customer premises (downstream) than the reverse (upstream). Service providers generally promote ADSL as a service for consumers for Internet access for first and foremost downloading content from the Internet, other than not serving content accessed by others.

在ADSL中 ，带宽和比特率被认为是不对称的，这意味着到客户房屋的方式(下游)要比反向(上游)更大。 服务提供商通常将ADSL推广为消费者访问Internet的服务，以便从互联网上首先下载内容，而不是不提供他人访问的内容。

传输协议 (Transport Protocols)

ADSL classifies three "Transmission protocol-specific transmission convergence (TPS-TC)" layers, which comprise:

ADSL对三个“ 特定于传输协议的传输融合(TPS-TC) ”层进行了分类，其中包括：

• Synchronous Transport Module (STM), which enables the transmission of frames of the Synchronous Digital Hierarchy (SDH)

  同步传输模块(STM)，用于传输同步数字体系(SDH)的帧

• Asynchronous Transfer Mode (ATM)

  异步传输模式(ATM)

• Packet Transfer Mode

  封包传输模式

ADSL标准 (ADSL Standards)

下载速度(ADSL 2+) (Download Speed (ADSL 2+))

Reference: Asymmetric digital subscriber line

参考： 非对称数字用户线

翻译自: https://www.includehelp.com/dictionary/adsl-full-form.aspx

adsl mss