IEC 63138-2:2020 pdf download

IEC 63138-2:2020 pdf download.Multi-channel radio-frequency connectors – Part 2: Sectional specification for MQ4 series circular connectors
1 Scope
This part of IEC 63138, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for MQ4 series circular connectors with four RF channels, as well as a detailed specification of the blank format. An MQ4 series circular connector with 50 Ω nominal impedance has four RF channels which can be engaged and disengaged at the same time. There are two versions of plug connectors, one is a quick-lock version, and the other is a threaded version. The socket connector provides two coupling mechanisms, a quick-lock and a threaded coupling. MQ4 series circular connectors can be used in mobile communication systems and in other communication equipment. This document also specifies the mating face dimensions and gauging information of MQ4 series circular connectors, and tests selected from IEC 63138-1, applicable to all detail specifications relating to MQ4 series circular connectors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 63138-1:2019, Multi-channel radio frequency connectors – Part 1: Generic specification – General requirements and test methods
5 Quality assessment procedure
5.1 General Subclause 5.2 to Subclause 5.3.4 provide the recommended rating, performance and test conditions to be considered when preparing a detail specification. They also specify the test schedules and procedure that suit the corresponding quality inspection level. 5.2 Rating and characteristics The values indicated in Table 9 are recommended for MQ4 series circular connectors, and are given for the writer of the detail specification. They are applicable for the condition when the connectors are fully mated. The preferable characteristics can be seen in Table 9. Certain tests are listed without any recommended values being given when they are not required. When such tests are required, appropriate values shall be entered in the detail specification at the discretion of the specification writer.
6.2 Identification of the component
1) Enter the following details: – style: the style designation of the connector including type of fixing and sealing, if applicable; – attachment: by deletion of the inapplicable options of cable/wire given for centre and outer conductors; – special features and markings: as applicable; – series designation: in bold characters/digits approximately 15 mm high. 2) Enter details of assessment level and the climatic category. 3) A reproduction of the outline drawing and details of the panel piercing (if applicable). It shall provide the maximum envelope dimensions, the position of the reference plane and, in the case of a fixed connector, the position of the mounting plane relative to the front face of the connector. Any maximum panel thickness limitations for fixed connectors shall be stated. 4) Particulars of all variants covered by the DS. As appropriate, the information shall include: – cable types (or sizes) applicable to each variant; – alternative plated or protective finishes; – details of alternative mounting flanges having either tapped or plain mounting holes; – details of alternative solder spills or solder buckets including, when applicable, those for use with microwave integrated circuit (MIC) components. 6.3 Performance 5) Performance data listing the most important characteristics of the connector in accordance with the requirements of the relevant sectional specification. Deviations from the minimum requirements shall be clearly indicated. Non-applicable parameters shall be marked “na”. 6.4 Marking, ordering information and related matters 6) Insert marking and ordering information as appropriate, together with details of related documents and any invoked structural similarity.