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Institute Mihailo Pupin
Institute Mihailo Pupin is the leading Serbian R&D institution in the field of Information & Communication Techologies.

Automation & Control Systems Ltd
The Automation & Control Systems Ltd is the core division of the Institute Mihailo Pupin, and the owner of the projects: ATLAS Systems and ATLAS-MAX.

References
The long list of the Institute's references and customers is the best proof of its high professional and techological achievments.

VIEW SCADA & DCS
The other related IMP project: VIEW4 Software Package for control of complex processes

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  • IEC 60512-23-3:2018
    IEC 60512-23-3:2018 is available as IEC 60512-23-3:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

    IEC 60512-23-3:2018. defines a standard test method for measuring the shielding effectiveness SE of a shielded connector, or of a connector not provided with integral shield once fitted with a shielding accessory and terminated with a screened cable. The complete assembly has a continuous 360° shielding capability throughout its length. This test method can be applied to shielded connectors and to connector accessories with shielding capability. The following different connector designs can be tested:
    - circular connectors;
    - rectangular connectors;
    - connectors for printed boards;
    - connector shielding accessories.
    This test method utilizes the principle that the intrinsic shielding property of the connector/ accessory/cable assembly is its surface transfer impedance ZT which can be expressed as the longitudinal voltage inside the shield, relative to the current flow on the outside shell. This test is also suitable for measuring the shielding effectiveness of a connector fitted with triaxial contacts terminated with shielded, twisted pair cables, as used in data bus systems. This second edition cancels and replaces the first edition, published in 2000. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
    a) an introduction has been added to provide some guidance to this document in view of concurrent test method 23g in the same family;
    b) the frequency range for which this test method is considered reliable moved from 1 GHz to 3 GHz, to be consistent with Figure 7 (unchanged) and current industry practice and need;
    c) update to IEC 62153-4-6:2017 of former normative reference IEC 60096-4-1:1990, withdrawn and incorrect (should have been IEC 61196-1:1995, also withdrawn);
    d) update to current subclause numbers of IEC 62153-4-6:2017 what were the previous subclause numbers referenced in IEC 61196-1:1995 (wrongly attributed to IEC 60096-4-1:1990). For immediate understanding the title of these subclauses has been added;
    e) alignment of title to the current scope of SC 48B (connectors) and inclusion of electrical equipment as target application of said connectors (per current scope of TC 48) and explicit reference to the method – line injection – for the measurement of transfer impedance;
    f) symbols SE for shielding effectiveness and ZT for surface transfer impedance added throughout the document;
    g) list of connectors to which the test method is applicable – previously in 3.1 – moved in scope;
    h) former name of AECMA organization changed to the current ASD-STAN;
    i) “specimen” used instead of “sample” throughout the document;
    j) clarification in the title of what transfer impedance is described in Table 3 and editorial improvement of the same;
    k) “dielectric constant” changed into the updated term “relative permittivity”;
    l) added a note to warn about the fact that this test method requires in 6.6 a TDR with more stringent rise time of less than 100 ps than the value of less than 350 ps specified both in IEC 62153-4-6 and in EN 50289-1-6 for the similar line injection method applied to screened cables, whereas test 23g of IEC 60512-23-7 specifies for the same purpose a TDR with a rise time of less than 200 ps;
    m) adoption of term “connector housing” [IEV 581-27-10] instead of “shell” to address the connector accessory providing the shielding;
    n) title “Transfer impedance ZT [Ω]” added to the ordinate axis on the left side of double log diagram of Figure 7;
    o) explanatory note to clarify the conversion formula for SE from ZT added.
    Key words: Connectors, Screening and Filtering Tests, Shielding Effectiveness



  • IEC 61935-1-2:2018

    IEC 61935-1-2:2018 specifies additional reference measurement procedures for measurement of resistance unbalance with field test instrumentation, and the requirements for field tester accuracy to measure resistance unbalance according to the requirements of ISO/IEC 11801-1.



  • IEC 60512-23-3:2018 RLV
    IEC 60512-23-3:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
     

    IEC 60512-23-3:2018. defines a standard test method for measuring the shielding effectiveness SE of a shielded connector, or of a connector not provided with integral shield once fitted with a shielding accessory and terminated with a screened cable. The complete assembly has a continuous 360° shielding capability throughout its length. This test method can be applied to shielded connectors and to connector accessories with shielding capability. The following different connector designs can be tested:
    - circular connectors;
    - rectangular connectors;
    - connectors for printed boards;
    - connector shielding accessories.
    This test method utilizes the principle that the intrinsic shielding property of the connector/ accessory/cable assembly is its surface transfer impedance ZT which can be expressed as the longitudinal voltage inside the shield, relative to the current flow on the outside shell. This test is also suitable for measuring the shielding effectiveness of a connector fitted with triaxial contacts terminated with shielded, twisted pair cables, as used in data bus systems. This second edition cancels and replaces the first edition, published in 2000. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
    a) an introduction has been added to provide some guidance to this document in view of concurrent test method 23g in the same family;
    b) the frequency range for which this test method is considered reliable moved from 1 GHz to 3 GHz, to be consistent with Figure 7 (unchanged) and current industry practice and need;
    c) update to IEC 62153-4-6:2017 of former normative reference IEC 60096-4-1:1990, withdrawn and incorrect (should have been IEC 61196-1:1995, also withdrawn);
    d) update to current subclause numbers of IEC 62153-4-6:2017 what were the previous subclause numbers referenced in IEC 61196-1:1995 (wrongly attributed to IEC 60096-4-1:1990). For immediate understanding the title of these subclauses has been added;
    e) alignment of title to the current scope of SC 48B (connectors) and inclusion of electrical equipment as target application of said connectors (per current scope of TC 48) and explicit reference to the method – line injection – for the measurement of transfer impedance;
    f) symbols SE for shielding effectiveness and ZT for surface transfer impedance added throughout the document;
    g) list of connectors to which the test method is applicable – previously in 3.1 – moved in scope;
    h) former name of AECMA organization changed to the current ASD-STAN;
    i) “specimen” used instead of “sample” throughout the document;
    j) clarification in the title of what transfer impedance is described in Table 3 and editorial improvement of the same;
    k) “dielectric constant” changed into the updated term “relative permittivity”;
    l) added a note to warn about the fact that this test method requires in 6.6 a TDR with more stringent rise time of less than 100 ps than the value of less than 350 ps specified both in IEC 62153-4-6 and in EN 50289-1-6 for the similar line injection method applied to screened cables, whereas test 23g of IEC 60512-23-7 specifies for the same purpose a TDR with a rise time of less than 200 ps;
    m) adoption of term “connector housing” [IEV 581-27-10] instead of “shell” to address the connector accessory providing the shielding;
    n) title “Transfer impedance ZT [Ω]” added to the ordinate axis on the left side of double log diagram of Figure 7;
    o) explanatory note to clarify the conversion formula for SE from ZT added.
    Key words: Connectors, Screening and Filtering Tests, Shielding Effectiveness



  • IEC 61850-8-2:2018
    EC 61850-8-2:2018 specifies a method of exchanging data through any kinds of network, including public networks. Among the various kinds of services specified in IEC 61850-7-2, only the client/server and time synchronization services are considered so far.
    NOTE Client/server services of GOOSE and SMV models are mapped as well.
    For the client/server services, the principle is to map the objects and services of the ACSI (Abstract Communication Service Interface defined in IEC 61850-7-2) to XML messages transported over XMPP. The mapping description includes mainly three aspects:
    • The usage of the XMPP protocol itself, describing in details which features are really used and how they are used by the mapping.
    • How to achieve end-to-end secured communications.
    • The description of the XML payloads corresponding to each ACSI service thanks in particular to the XML Schema and XML message examples.

  • IEC 60793-2-50:2018
    IEC 60793-2-50:2018 is available as IEC 60793-2-50:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

    IEC 60793-2-50: 2018 is applicable to optical fibre categories B-652, B-653, B-654, B-655, B 656 and B-657. A map illustrating the connection of IEC designations to ITU-T designations is shown in Table 1. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables.  Three types of requirements apply to these fibres:
    • general requirements, as defined in IEC 60793-2;
    • specific requirements common to the class B single-mode fibres covered in this document and which are given in Clause 5;
    • particular requirements applicable to individual fibre categories or specific applications, which are defined in Annexes A to F.
    For some fibre categories (shown in the relevant family specifications), there are sub-categories that are distinguished on the basis of difference in transmission attribute specifications. The designations for these sub-categories are documented in the individual family specifications.
    The sixth edition cancels and replaces the fifth edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
    a) Introduction of a revised naming convention which better matches with those found in ITU T Recommendations G.652, G.653, G.654, G.655, G.656, and G.657. These changes are outlined in the scope of this document along with a cross reference table for the new names. Annexes have been rearranged to improve clarity based on the new naming;
    b) Further details on the requirements for 200 micron coated single-mode fibre;
    c) Harmonization with the following ITU-T Recommendations published in November 2016: G.652, G.654, G.657 including revised chromatic dispersion specifications, new categories and new application spaces for these fibre categories;
    d) Descriptions of fibre types have been added to the titles of Annexes A to F.
    Keywords: information transmission equipment, optical fibre cables