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模擬和數(shù)字通信及控制用電纜檢測(cè)項(xiàng)目報(bào)價(jià)???解決方案???檢測(cè)周期???樣品要求? |
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本標(biāo)準(zhǔn)規(guī)定了船舶電氣與電子設(shè)備的發(fā)射、抗擾度和性能準(zhǔn)則的電磁兼容性(EMC)的低要求,有助于滿足海事組織(以下簡(jiǎn)稱IMO)A.813決議的要求(參見附錄A)。 依據(jù)本標(biāo)準(zhǔn)進(jìn)行試驗(yàn)和安裝的設(shè)備滿足相關(guān)的IM0要求。 注1:本標(biāo)準(zhǔn)的規(guī)范性內(nèi)容已作為EMC系列標(biāo)準(zhǔn)中的一個(gè)標(biāo)準(zhǔn)。 注2:本標(biāo)準(zhǔn)未涉及對(duì)人員的影響。 本標(biāo)準(zhǔn)針對(duì)測(cè)量方法給出了進(jìn)一步的指南和建議,來實(shí)現(xiàn)下列各組設(shè)備中的電氣與電子裝置的電磁兼容性。 A組:無線電通信和導(dǎo)航設(shè)備 B組:發(fā)電和變電設(shè)備 C組:以脈動(dòng)能量工作的設(shè)備 D組:開關(guān)設(shè)備和控制系統(tǒng) E組:內(nèi)部通信和信號(hào)處理設(shè)備 F組:非電氣零件和設(shè)備 G組:綜合系統(tǒng) IEC 60945是A組和C組的基礎(chǔ)EMC標(biāo)準(zhǔn)。 注:本標(biāo)準(zhǔn)沒有具體說明諸如對(duì)電擊和設(shè)備介電(強(qiáng)度)試驗(yàn)時(shí)保護(hù)的非安全操作和基本安全要求。
本標(biāo)準(zhǔn)提供了航空電子系統(tǒng)和設(shè)備測(cè)試性設(shè)計(jì)的一般原則和有關(guān)設(shè)計(jì)技術(shù)。n 本標(biāo)準(zhǔn)適用于航空電子系統(tǒng)和設(shè)備的測(cè)試性設(shè)計(jì)。
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".