程控交换机

本文提出基于程控交换机的呼叫中心网络拓扑，最大限度地减少了呼叫中心设备容量，降低了设备成本。

The topological network of the call center based on the PBX decreases equipment capacity in the most limitation by far and brings down the cost of equipment .

由于该网络接口系统不做任何数据解释的透明的传输TDM语音帧，从而可以与原有的程控交换机实现无缝接入。

For this interface unframed mode transparently transports the TDM frame without any attempt at interpreting the data , it seamlessly interfaces to all existing PBX equipment .

用廉价DSP实现程控交换机中的多频互控

Use of Low cost DSP Chip to Realize MFC in Programmable Switcher

程控交换机PWM开关电源设计

Design of PWM Switching Mode Power Supply Applied to Program Exchange

基于CORBA技术的程控交换机控制系统的设计与实现

Design and Implementation of CORBA-based SPC Control System

浅谈SDH传输设备的管理及维护程控交换机的维护

Management And Maintenance Of SDH Transmission Equipment Maintenance of Program Control Exchange

程控交换机用的PTC限流器材料及其特性

The PTC Ceramics Used in Telephone Exchanges and Their Characteristics

程控交换机SPWM铃流源的设计

Design of SPWM Switching Mode Bell-Current Supply Applied to Program Exchange

程控交换机2M数字中继故障分析

Failures analysis on the 2 M digital trunk of SPC exchanger

基于ISP技术的电话程控交换机

The telephone exchanger based on the ISP technology

数字程控交换机ISDN功能扩展及实现

Expansion and Implementation of ISDN Functionality for Digital SPC Exchanges

电力程控交换机NO.1与NO.7信令转接方式的分析

Analysis of transfer mode between No.1 and No.7 signaling in PBX electrical private network

现有程控交换机的ISDN基本速率接口

ISDN Basic Rate Access Interface for Existing Switching Systems

No.7信令系统及其在程控交换机中的应用

No.7 Signaling System and Its Application in Stored Program Control Exchanges

叙述了Harris程控交换机的集中告警功能，以及简单的拓展与无线寻呼结合的应用。

This article described alarm function of Harris 20 20 telephone exchange , and provided a simple application example .

Y2K问题对程控交换机系统的危害及解决对策

Harm of Y2K to Programmable Electronic Switching System and Countermeasures for Solving this Problem

程控交换机（PBX）技术与发展

Technology and development of SPC exchange

C&C08程控交换机中A9信号的测试和应用

The Measurement and Application of A9 Signal of C & C08 SPC

通信系统主要包括综合业务接入网、光同步传输系统（SDH）、程控交换机系统、传输时钟、UPS通信电源等。

Communication systems include access network , synchronous optical transmission systems ( SDH ), program-controlled switching system , transmission clock , UPS power supply and so on .

国外食品安全信息化管理体系研究及对我国的借鉴意义浅谈tss程控交换机的计费管理

Studies on Information-based Management Structure of Food Safety in Developed Countries and Suggestions on Establishing China Food Safety Management Structure

程控交换机ZXJ10作为PBX的特点和优势

Characteristic and Predominance of Digital SPC Switch as PBX

在网络中心放置VoIP网关，每个网关采用E1线路与程控交换机（PBX）进行连接。

Lays aside the VoIP gateway in the hub , each gateway uses the El line and program controlled switch ( PBX ) carries on the connection .

介绍S12－J型数字程控交换机的中继组织、来话局向和去话局向的创建、删除等。

This paper introduces the trunk organization , creation and deleting of incoming route and outgoing route for S12 J family digital program control exchange .

大型企业或公司集团，往往具有内部程控交换机PBX设备，以及接入互联网络。

Large-scale enterprise or company groups own inside private branch ( telephone ) exchanger ( PBX ) equipment and the internet connection equipment .

介绍了S1240程控交换机脱机计费系统的特点及结构组成。

This paper introduces the feature and structure of the ChargingSystem of S1240 .

针对E系列程控交换机不能满足用户录音通知要求的问题，J系列程控交换机中新增加了DIAM（数字综合录音通知模块）。

In view of the problem that E family SPC can not fulfill the requirement of announcement for customers , J family SPC adds digital integrated announcement module ( DIAM ) .

介绍了一种用于程控交换机的由VMOS管驱动的DC-DCPWM开关电源的工作原理与电路设计。

This paper introduces a kind of DC-DC PWM switching mode power supply driven by VMOS and applied to Program Exchange . The principle and circuit are presented .

CID信号发生器模拟电信局终端程控交换机产生主叫识别信息传送，用于对来电显示器或带来电显示的电话机进行性能测试。

CID ( Calling Identity Delivery ) signal generator simulates the CID of exchange terminal interface for testing the function of telephone sets with CID or CID monitor .

现代程控交换机中为了提供各种资源通道：如语音通道、DTMF通道、语音编码解码通道、调制解调通道等，采用了门类繁多的硬件板型。

The modern program-controlled switcher adopts different versions of hardware in order to provide various resource channels : speech codec channel , DTMF channel , modulation-demodulation channel and so on .

可变扫描周期程控交换机BHCA值的计算

Evaluation of BHCA for SPC Exchanges With Variable Scanning Period