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subscriber line signaling 用户线信号方式
The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network 电话自动交换网用户信号技术指标测试方法
The network interface uses a Multirate Digital Subscriber Line. 网络接口使用多速率数字用户线路。
Initially its data service involves splitting a signal (with a prism) from a standard 620-megabit-per-second fiber line to 32 subscriber lines, each carrying about 19.38 megabits. 初期的资料服务将透过每秒可传输620Mb（百万位元）的标准光纤，藉由稜镜把光纤上的频宽分配给32条用户线，每条用户线大约可分到19.;38Mb。
Digital Subscriber Line (DSL) - Technology using copper-wire telephone networks to provide high-speed Internet connections through a DSL modem. 数字用户专线-使用铜线电话网通过DSL调制解调器提供高速因特网连结的技术。
Used in the CCTV system, the antenna television system branch line, subscriber line and other electronic devices. 本产品适用于闭路电视、共用天线电视系统作分支线和用户线及其它电子装置。
New charges proposed by the regional Bell holding companies to supplement subscriber line charges. 地区贝尔控股公司提议增加新的收费以补充用户线收费。
Very high bit rate Digital Subscribers Line. 超高速对称型数字用户专线。
To set up a Digital Subscriber Line (DSL) or cable connection, you first need an account with an Internet service provider (ISP). 若要设置数字用户线(DSL)或电缆连接,您首先需要拥有一个Internet服务提供商(ISP)的帐户。
Physical failures are indicated by loss of line signals. 物理失效是由丢失行信号来表示的。
Broadband modems connect to either a cable or Digital Subscriber Line (DSL), and they provide high-speed Internet access. 宽带调制解调器连接到电缆或数字用户线(DSL),它们提供高速的Internet访问。
Single-line digital subscriber line (SDSL) SDSL is a symmetric DSL technology, with HDSL only difference is that the use of a pair of copper wires. SDSL可以支持各种上、下行通信速率相同的应用。
It is generally agreed that Digital Subscriber Line (DSL) and cable TV are broadband services in the downstream direction. 数字用户传输线（DSL）和有限电视都是公认的下行宽带。
For faster connections,users will have to wait for two protocols: Asymmetric Digital Subscriber Line (ADSL) and High-data-rate Digital Subscriber Line (HDSL). 对于需要更快连接的用户来说，还须等待两个协议：不对称数字用户线（ADSL）和高数据速率数字用户线（HDSL）。
For the consumer looking for faster Internet access in 1998,he will have to make a choice between Asymmetric Digital Subscriber Line (ADSL) or 56K-bit per second technology. 对于在1998年寻找更快的因特网接入的客户来说，他必须在非对称数字用户线路（ADSL）技术和56Kb/s调制解调器技术之间作出选择。
A line signal sent forward to indicate that address signals are about to is transmitted. 一种转发的线路信号,用来表示地址信号即将被传输。
CAP is compared with 2B1Q coding based on the analysis of high bit rate digital subscriber line (HDSL). Some real examples are given which show the applications of HDSL technique. 在分析HDSL原理和性能的基础上，对其CAP（无载波调幅/调相）与2B1Q编码进行了分析比较，并结合实例给出了HDSL技术的实际应用。
This paper describes the implementation of ADSL(Asymmetric Digital Subscriber Line) Transceiver use for ATU - R which is designed with the Technology of DSP Core. 介绍了一种用 DSP核（DSP Core）实现ADSL（Asymmetric Digital Sub－scriber Line）用户端收发器（Transceiver）的研制与开发。
For faster connections, users will have to wait for two protocols: Asymmetric Digital Subscriber Line (ADSL) and High-data-rate Digital Subscriber Line (HDSL). 对于需要更快连接的用户来说，还须等待两个协议：不对称数字用户线（ADSL）和高数据速率数字用户线（HDSL）。
Contentiousness surrounds the question of how best to get broadband connections such as digital subscriber line (DSL) technology to the masses at reasonable rates. 问题争论的焦点在于，如何才能让大众以合理的价格连接宽频上网，比如透过数位用户线连接上网。