用户交换机(PBX)是目前机关、企业、学校及酒店等集团客户普遍采用的电话设备。
PBX is a common Telephone Exchange system that is widely adopted by the group customers, for example, enterprise, schools and hotels etc.
本文分析了程控数字用户交换机过压过流产生的主要原因，并讨论了过压过流的保护方法。
The paper analyzes the major reasons of overvoltage and overcurrent occuring to program-controlled digital users exchanger, and discusses the protection methods against overvoltage and overcurrent.
FCC在NAS报告的基础上建立用户交换机、拨号器及应答设备委员会以推荐认证标准。
FCC establishes the PBX and Dialer and Answering Devices Committees to recommend certification standards based on the NAS Report.
分析了影响程控用户交换机电话接通率的各种因素，并结合实际情况指出提高电话接通率的具体措施。
This paper analyses all factors that influence the telephone connection of program-controlled customer exchangers and puts forward measures for raising the telephone connection rate.
介绍了虚拟用户交换机的产生及其应用，讨论了与传统的用户交换机在提供业务、使用维护等方面的不同之处。
This paper introduces the virtual PBX and its application, also discusses the difference between traditional PBX and virtual PBX in respect of support service and maintenance.
这种中继电路为程控用户交换机进入公用电话网提供了全自功入网能力，并易于进行程控用户交换机之间的组网。
This scheme provides the automatic trunking ability for PABX to enter the telephone network and connent with other PABX easily.
本文介绍了ZXJ2000A用户交换机密码计费的实现方式，包括系统组成、处理过程、使用方式、管理方式等。
This paper introduces the realization of the secret code charging system in the ZXJ2000A SPC PABX, including the composition, processing, operation and management of the system.
网络交换机 –一个使用NIC 的面向消息通信的新私有网络，用于公共网络的用户访问。
Network switch – A new private network for message traffic using NIC that would be used for public network user access.
用串口直连电缆连接到每台交换机的串行控制端口(9600、8 -N - 1、无流控制)，默认下不需要用户ID和密码。
Connect to the switch using the serial console port with a straight serial cable (9600, 8-n-1, no flow control) with default no user ID or password required.
用户需要具有管理员访问权限并且具有如何通过DeviceManagerGUI 来配置MDS类交换机的应用知识。
Users require administrator access and a working knowledge of how to configure MDS class switches through the Device Manager GUI.
因为Linux显示文件系统的一个公共界面(通过虚拟文件系统交换机[VFS])，Ceph的用户透视图就是透明的。
As Linux presents a common interface to the file systems (through the virtual file system switch [VFS]), the user's perspective of Ceph is transparent.
首先，用串口直连电缆连接到每台交换机的串行控制端口(9600、8 -n - 1、无流控制)，使用默认用户IDadmin，无密码。
First, connect to each switch using the serial console port with a straight serial cable (9600, 8-n-1, no flow control) with a default user ID admin and no password.
重启之后，连接到交换机，再次输入enable进入超级用户模式。
After reboot, connect to the switch and enter super-user mode again by entering enable.
电子技术使得电话交换机可以处理大批量的电话用户。
Electronic technology enables telephone exchanges to cover an ever increasing number of telephone communications.
用户在选择交换机的时候，会看一下它的功能列表。
Users in the selection of switches, we will look at the list of its functions.
在对S1240 (elc型)程控交换机进行日常维护时，常见故障有用户模块、中继模块和计费模块的故障。
The common faults of S1240 (ELC type) SPC exchange are in user mod ul e, relay module and metering module in daily maintenance work.
实时交换机可为用户提供微秒级硬实时通信性能，在航空航天领域具有广阔的应用前景。
Real-time switch can provide user with the function of hard real-time communication in microsecond, and it can be used in the field of aviation and space flight broadly.
本发明涉及一种用于保护网络免于来自用户的安全攻击并且尤其是对于第2层交换机而言免于MAC洪流攻击的方法。
The present invention relates to a method for protecting a network against a security attack from an user, and in particular, for a layer 2 switch, against a MAC flooding attack.
被称为电路交换机的交换设备没有存储或控制用户送往终点路由的数据的能力。
The switches, called circuit switches, have no capability of storing or manipulating user's data on their way to the destination.
介绍一种新型的程控交换机用户线测试系统。
A new kind of subscriber line testing system for SPC exchanges is introduced.
基于以太网的接口使得无线交换机公司能够保持它们的2G用户基础设施，而不必配置附加的第三方设备。
The Ethernet-based interface enables wireless switch companies to keep their 2G customer base without having to deploy additional third party equipment.
对引起交换机非正常拆线、用户非正常挂机的伪信今的产生原因作了初步分析，并针对这些原因提出了改进的措施；
This paper analyzes the cause of false signallings that result in abnormal ex-change disconnection, abnormal user off - hook, some ways against them is showed.
作为结果，STP的用户可以透明地整合交换机而不影响包含于其他运营商网络中的SS7数据库。
As a result, the user of the STP can transparently consolidate switches without affecting the SS7 database contained in other carrier networks.
文中还详细论述了交换机的处理过程，县公司的计算机网络构成，用户操作及市公司网络构成。
The Processing of switch, construction of computer net in county company, and user operation are derailed.
工作职责：管理维护公司的用户电脑以及服务器，门禁系统，电话交换机。
Responsibilities: management and take care of company computers and server, door keeping system and telephone switch.
利用中心交换机的多种访问控制功能，可构建一个分布式的网络安全交换体系，以实现对网络和用户接入的安全管理。
The use of the multiple functions of switch in access-control can realize the distribution security system, and implement the security management for the network and the users.
有些交换机可配置进行裁剪通过开关以每港口基础直到用户定义阈值误差达到当他们自动改变存储转发模式。
Some switches can be configured to perform cut-through switching on a per-port basis until a user-defined error threshold is reached, when they automatically change to store-and-forward mode.
该接口利用微型计算机技术从HJ—921型交换机的公共控制设备采集，并向农村支局自动交换机转发被叫用户号码。
Making use of microcomputer techniques, the interface collects information from common control exchange HJ-921 and repeats called subscriber number to rural telephone exchange.
思科SRW2008P 8端口千兆交换机（图1）将千兆位的速度给用户，同时增加了全新的情报和安全的新水平，以您的网络。
The Cisco SRW2008P 8-Port Gigabit Switch (Figure 1) brings Gigabit speeds to your users while adding a whole new level of intelligence and security to your network.
STA5型用户板用于数字程控交换机的用户接口，也可做为各类接入网系统的远端二线模拟接口。
STA5 subscriber line is applied to subscriber line interface of programmed control digital switches, and two wire analogy remote interface of access network.
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