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Hicom系列程控数字用户交换机是上海新光电讯厂从德国西门子公司引进的具有80年代中期水平的产品。该产品在世界各地已有100多万线在运行。该产品能够同我国现有的步进制、纵横制、人工长途台、特种业务等配合工作。 Hicom程控用户交换机是基于ISDN发展的要求,按国际电话电报咨询委员会(CCITT)建议的标准和规范进行设计的新产品,有四个容量系列,单机容量60～10000线。该交换机具有以下特点和先进性。 1.采取了功能分担分级控制方式系统的控制是由用户处理机、用户组处理机、群处理机和中央处理机组成的功能分担型的分级控制方式,这样能充分发挥各级处理机的作用,除中央处理机外,其他各级处理机如有故障,影响面小,提高了系统的可靠性。 2.计算机技术先进群处理机和中央处理机的CPU芯片是英特尔80286-16位机或80486-32位机,时钟频率高,处理能力强,存储容量大,内存有16兆字节的存贮器,外存是
Hicom series of program-controlled digital subscriber exchange is a product of the mid-1980s introduced by Shanghai Xinguang Telecommunication Factory from Siemens of Germany. The product has more than 1 million lines in operation around the world. The product can work with our existing step-by-step system, vertical and horizontal system, artificial long-distance Taiwan, special operations and other work. Hicom PBX is a new product based on the requirements of ISDN development and designed according to the standards and specifications proposed by the CCITT. It has four capacity series, with stand-alone capacity of 60 to 10,000 lines. The switch has the following features and advanced. 1. Take the function of sharing grading control The system control by the user processor, user group processor, group processor and central processing unit composed of function-sharing type of hierarchical control, which can give full play to the role of the processor at all levels , In addition to the central processing unit, other processors at all levels if the failure, the impact of small, improve system reliability. 2. advanced computer technology group processor and CPU chip CPU is Intel 80286-16 bit machine or 80486-32 bit machine, the clock frequency, processing power, large storage capacity, the memory has 16 megabytes of storage Memory, memory is