电信专业英英词典S-3

　　SSN

　　switched service network

　　SS

　　signaling system

　　Station Equipment

　　Station equipment is a component¹ of telecommunications systems such as a telephone or data terminal, generally located on the user's premises². Its function is to transmit and receive user information (traffic), and to exchange control information with the network to access communications services.

　　STM

　　synchronous⁴ transfer mode

　　STP

　　shielded twisted pair or signaling transfer/point

　　Superframe Format³ (SF)

　　Superframe format is a framing format (D3/D4——mode 3), the most widely used T1 carrier framing format in which the bipolar bit stream is organized into superframes each consisting of 12 frames. To ensure timing⁵, the signal must consist of at least one "1" bit in every 15 bits and at least :3 " 1" bits in every 24 bits. See extended superframe.

　　Supervisory Signals

　　Supervisory signals are signals used to indicate or control the states of circuits involved in a particular switched connection. A supervisory signal indicates to equipment, to an operator, or to a user that a particular state in the call has been reached and may simplify the need for action.

　　Switch Matrices

　　Switch matrices are the mechanism⁶ that provides signal paths between its input⁷ and output terminations. Modern matrices are electronic and involve either time or space division switching. A time division switch employs a TDM process, in a time-slot interchange (TSI) arrangement. In space division, a physical, electrical, spatial⁸ link is established through the switch matrix. Whereas older space division switches used electro-mechanical mechanisms⁹ with metallic¹⁰ contacts, modern space-division switches are implemented¹¹ electronically using integrated circuits.

　　Switching

　　Switching refers to the process of connecting appropriate lines and/or trunks to form a desired communications path between two station sets, or more generally, any two arbitrary points in a telecommunications network. Included are all kinds of related functions such as signaling, monitoring the status of circuits, translating address to routing instructions, alternate routing, testing circuits for busy conditions, and detecting and recording¹² troubles.

　　Switching Systems

　　Switching systems are interconnect transmission facilities at various network locations and route traffic through a network.

　　Systems (Manual Circuits)

　　In Plant Records and Assignment, these terms refer to circuits whose network elements have been assigned manually rather than by automatic assignment.

　　Systems Network Architecture (SNA)

　　SNA is IBM's proprietary¹³ description of the logical structure, formats¹⁴, protocols¹⁵, and operational sequences for transmitting information units through and controlling network configuration¹⁶ and operation.

　　Search Vehicles - Sources that offer a variety of methods to obtain information on the WWW (e.g. catalogs, directories, search engines, spiders).

1 component   

n.组成部分，成分，元件；adj.组成的，合成的

参考例句：

• Each component is carefully checked before assembly.每个零件在装配前都经过仔细检查。
• Blade and handle are the component parts of a knife.刀身和刀柄是一把刀的组成部分。

2 premises   

n.建筑物，房屋

参考例句：

• According to the rules,no alcohol can be consumed on the premises.按照规定，场内不准饮酒。
• All repairs are done on the premises and not put out.全部修缮都在家里进行，不用送到外面去做。

3 format   

n.设计，版式；[计算机]格式，DOS命令:格式化(磁盘)，用于空盘或使用过的磁盘建立新空盘来存储数据；v.使格式化，设计，安排

参考例句：

• Please format this floppy disc.请将这张软盘格式化。
• The format of the figure is very tasteful.该图表的格式很雅致。

4 synchronous   

adj.同步的

参考例句：

• The message can be used only with synchronous operations.消息只能与同步操作一起使用。
• Synchronous machines do not easily fall out of step under normal conditions.在正常情况下，同步电机不易失去同步。

5 timing   

n.时间安排，时间选择

参考例句：

• The timing of the meeting is not convenient.会议的时间安排不合适。
• The timing of our statement is very opportune.我们发表声明选择的时机很恰当。

6 mechanism   

n.机械装置；机构，结构

参考例句：

• The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
• The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。

7 input   

n.输入(物)；投入；vt.把(数据等)输入计算机

参考例句：

• I will forever be grateful for his considerable input.我将永远感激他的大量投入。
• All this information had to be input onto the computer.所有这些信息都必须输入计算机。

8 spatial   

adj.空间的，占据空间的

参考例句：

• This part of brain judges the spatial relationship between objects.大脑的这部分判断物体间的空间关系。
• They said that time is the feeling of spatial displacement.他们说时间是空间位移的感觉。

9 mechanisms   

n.机械( mechanism的名词复数 )；机械装置；[生物学] 机制；机械作用

参考例句：

• The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
• He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》

10 metallic   

adj.金属的；金属制的；含金属的；产金属的；像金属的

参考例句：

• A sharp metallic note coming from the outside frightened me.外面传来尖锐铿锵的声音吓了我一跳。
• He picked up a metallic ring last night.昨夜他捡了一个金属戒指。

11 implemented   

v.实现( implement的过去式和过去分词 )；执行；贯彻；使生效

参考例句：

• This agreement, if not implemented, is a mere scrap of paper. 这个协定如不执行只不过是一纸空文。 来自《现代汉英综合大词典》
• The economy is in danger of collapse unless far-reaching reforms are implemented. 如果不实施影响深远的改革，经济就面临崩溃的危险。 来自辞典例句

12 recording   

n.录音，记录

参考例句：

• How long will the recording of the song take?录下这首歌得花多少时间？
• I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。

13 proprietary   

n.所有权，所有的；独占的；业主

参考例句：

• We had to take action to protect the proprietary technology.我们必须采取措施保护专利技术。
• Proprietary right is the foundation of jus rerem.所有权是物权法之根基。

14 formats   

n.（出版物的）版式( format的名词复数 )；[电视]电视节目的总安排（或计划）

参考例句：

• They are producing books in all kinds of different formats. 他们出版各种不同开本的书籍。 来自《简明英汉词典》
• A true GUI includes standard formats for representing text and graphics. 真正的图形用户界面包括表示文字和图形的标准格式。 来自互联网

15 protocols   

n.礼仪( protocol的名词复数 )；（外交条约的）草案；（数据传递的）协议；科学实验报告（或计划）

参考例句：

• There are also protocols on the testing of nuclear weapons. 也有关于核武器试验的协议。 来自辞典例句
• Hardware components and software design of network transport protocols are separately introduced. 介绍系统硬件组成及网络传输协议的软件设计。 来自互联网

16 configuration   

n.结构，布局，形态，(计算机)配置

参考例句：

• Geographers study the configuration of the mountains.地理学家研究山脉的地形轮廓。
• Prices range from $119 to $199,depending on the particular configuration.价格因具体配置而异，从119美元至199美元不等。