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模拟和数字通信及控制用电缆检测项目报价? 解决方案? 检测周期? 样品要求? |
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本标准规定了船舶电气与电子设备的发射、抗扰度和性能准则的电磁兼容性(EMC)的低要求,有助于满足海事组织(以下简称IMO)A.813决议的要求(参见附录A)。 依据本标准进行试验和安装的设备满足相关的IM0要求。 注1:本标准的规范性内容已作为EMC系列标准中的一个标准。 注2:本标准未涉及对人员的影响。 本标准针对测量方法给出了进一步的指南和建议,来实现下列各组设备中的电气与电子装置的电磁兼容性。 A组:无线电通信和导航设备 B组:发电和变电设备 C组:以脉动能量工作的设备 D组:开关设备和控制系统 E组:内部通信和信号处理设备 F组:非电气零件和设备 G组:综合系统 IEC 60945是A组和C组的基础EMC标准。 注:本标准没有具体说明诸如对电击和设备介电(强度)试验时保护的非安全操作和基本安全要求。
本标准提供了航空电子系统和设备测试性设计的一般原则和有关设计技术。n 本标准适用于航空电子系统和设备的测试性设计。
The VMEbus specification defines an interfacing system used to interconnect microprocessors, data storage, and peripheral control devices in a closely coupled hardware configuration. The system has been conceived with the following objectives:na) to allow communication between devices on the VMEbus without disturbing the internal activities of other devices interfaced to the VMEbus;nb) to specify the electrical and mechanical system characteristics required to design devices that will reliably and unambiguously communicate with other devices interfaced to the VMEbus;nc) to specify protocols that precisely define the interaction between the VMEbus and devices interfaced to it;nd) to provide terminology and definitions that describe the system protocol;ne) to allow a broad range of design latitude so that the designer can optimize cost and/or performance without affecting system compatibility;nf) to provide a system where performance is primarily device limited, rather than system interface limited.
The International Telecommunication Union (ITU) is the United Nations specialized agency in the field oftelecommunications.221
This Recommendation identifies the IMT-2000 Family Member, "GSM evolved UMTS corenetwork with UTRAN access network". This release of the family member is known to the Standards Development Organizations (i.e. ARIB, CWTS, ETSI, T1, TTA, TTC) as the "3GPP
This Recommendation identifies the IMT-2000 Family Member, "GSM evolved UMTS Core Network". This release of the Family Member is known to the Standards Development Organizations (i.e., ARIB, CCSA, ETSI, ATIS, TTA, TTC) as the "3GPP Release 7".
This Recommendation identifies the IMT-2000 Family Member, "GSM-evolved UMTS Core Network". This release of the Family Member is known to the Standards Development Organizations (i.e., ARIB, CCSA, ETSI, ATIS, TTA, TTC) as the "3GPP Release 8".