| PX—10A型自动电话交换机 |
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| 引用本文： | 易国光. PX—10A型自动电话交换机[J]. 湖南师范大学自然科学学报, 1990, 13(3): 217-221 |
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| 作者姓名： | 易国光 |
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| 作者单位： | 湖南师范大学物理系 |
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| 摘 要： | ![]()
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| 关 键 词： | 电话交换机 自动 电子 |
PX-10A AUTOMATIC TELEPHONE EXCHANGE |
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| Yi Cuoguang. PX-10A AUTOMATIC TELEPHONE EXCHANGE[J]. Journal of Natural Science of Hunan Normal University, 1990, 13(3): 217-221 |
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| Authors: | Yi Cuoguang |
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| Affiliation: | Yi Cuoguang Department of Physics |
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| Abstract: | ![]()
In this paper,the principle of PX-10A automatic telephone exchange isdeveloped by writer lately is described.It is made of CMOS integrated circiuts,transistors and small relays.The capacity of PX-10A is 10 lines.Telephonist isnot necessary for this telephone exchange because it is automatic control.PX-10Ais easy and convenient in operation for use in internal inter communication. |
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| Keywords: | telephone exchange automatic telephone exchange electronic telephone exchange. |
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