ISO 9543:1989 PDF

Name: ISO 9543:1989 — Information processing systems — Information exchange between systems — Synchronous transmission signal quality at DTE/DCE interfaces
SKU: ISO 9543:1989
Price: 25 EUR
Availability: InStock

Information processing systems — Information exchange between systems — Synchronous transmission signal quality at DTE/DCE interfaces

Название (английский):

ISO 9543:1989

Information processing systems — Information exchange between systems — Synchronous transmission signal quality at DTE/DCE interfaces

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 13 апреля 1989 г.
Издание:: ISO IS 9543 edition 1 version 1
ICS:: 35.100.10

Тип поставки:

Full version165 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:2 раб. дн. (перевод)

Цена:165 €

Описание (английский):

Prescribes quality requirements for serial data transmission at the interface between synchronous transmission Data Terminal Equipment and Data Circuit-terminating Equipment in conformance with the CCITT Recommendations V.24 (telephone networks), X.24 (data networks) as specified in DCEs of the corresponding CCITT-Recommendations. Takes into account the need to have performance cotegories of signal quality depending on the type of interchange circuits.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 9543:1989 - Information processing systems - Information exchange between systems - Synchronous transmission signal quality at DTE/DCE interfaces - specifies signal quality requirements for serial synchronous data transmission at the interface between Data Terminal Equipment (DTE) and Data Circuit‑terminating Equipment (DCE). It applies to CCITT (now ITU‑T) V‑series and X‑series interfaces (for example V.24, X.24, V.28, V.11, V.10) and covers synchronous DTE↔DCE and some DTE↔DTE direct connections. The standard focuses on measurable timing and waveform quality parameters required to achieve reliable synchronous exchange; it does not define acceptable bit‑error rates or DCE/line quality.

Key topics and technical requirements

Scope: Serial synchronous transmission at DTE/DCE interchange points using CCITT V/X interfaces; ISDN S/T reference point excluded.

Timing classes: Defines two timing relationships - codirectional timing (data and timing travel same direction) and contradirectional timing (data and timing travel opposite directions).

Signal quality parameters:

Jitter on specific interchange circuits (specified observation period: 10 s).
Timing displacement between data and timing signals (limits vary by codirectional/contradirectional cases).
Duty cycle of signal element timing.
Signal element timing accuracy (permissible deviation from nominal data signalling rate).

Measurement methods:

Specifies test arrangements and standard test loads (examples given: 3 000 Ω shunted by 2 500 pF for V.28 generator tests; 450 Ω shunted by a capacitance C1 for interchange tests).
Transition detection thresholds (example: +3.0 V / −3.0 V) and timing of transition instants are defined for consistent measurement.
Measurements are performed at generator and interchange points with the appropriate CCITT electrical characteristics (V.28, V.10, V.11 equivalents noted).

Categorization: Signal quality is categorized into performance categories with lettered percentage limits in the standard (e.g., B %, C %, D %, etc.) corresponding to jitter, duty cycle and timing displacement requirements.

Applications and who uses it

Equipment manufacturers designing synchronous DTE/DCE interfaces and modems.

Conformance and interoperability test laboratories validating interface timing and signal quality.

Network operators and systems integrators ensuring reliable synchronous serial links on public data networks and leased circuits.

Procurement and QA teams specifying interface acceptance criteria for telecommunication equipment.

Related standards

CCITT/ITU‑T Recommendations: V.24, V.28, V.11, V.10, V.35, V.36, X.24, X.21, X.21bis, X.22

ISO references cited in the document (e.g., ISO 2382‑9 vocabulary)

Keywords: ISO 9543:1989, synchronous transmission, DTE/DCE interfaces, signal quality, jitter, timing displacement, duty cycle, V.24, X.24, V.28, test load, serial data transmission.

ISO 9543:1989 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses it

Related standards

Технические детали

ISO 2382-9:1984

Data processing — Vocabulary — Part 9: Data communication

ISO 8689-1:2000

Water quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological qu…

ISO/ASTM51540-04(2012)

Standard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)

ISO/ASTM51204-04

Standard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)

ISO/ASTM51431-05

Standard Practice for Dosimetry in Electron Beam and X-Ray (Bremsstrahlung) Irradiation Facilities for Food P…

ISO/ASTM52628-20e1

Standard Practice for Dosimetry in Radiation Processing

ISO/ASTM52921-13(2019)

Standard Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies

ISO/ASTMTR52917-EB

Additive Manufacturing — Round Robin Testing — General Guidelines