Information technology — Telecommunications and information exchange between systems — Interface connector and contact assignments for ISDN primary rate access connector located at reference points S and T

This International Standard specifies the 8-contact connector (plug and jack) and the assignments of its contact numbers for use in the physical interfaces of Integrated Services Digital Network (ISDN) primary rate access services conforming to ITU-T Recommendation I.431. In this International Standard, as in ITU-T Recommendation I.431, the term "NT" is used to indicate the network terminating layer 1 aspects of NT1s and NT2s, and the term "TE" is used to indicate terminal layer 1 aspects of TE1s, TAs and NT2s. NOTES 1 This International Standard specifies only those connector dimensions required to ensure intermatability of plug and jack. Complete detailed specifications of the connector are the subject of IEC 603-7, see annex C. 2 ITU-T recognizes an alternative connection system which is not covered by this International Standard. It uses coaxial connectors as specified in IEC 169-8 (see annex C), and is illustrated in annex B.

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Connecteur d'interface et attributions de contact pour connecteur d'accès à vitesse primaire ISDN situé aux points de référence S et T

General Information

Status
Published
Publication Date
19-Dec-1998
Current Stage
9093 - International Standard confirmed
Completion Date
23-Oct-2003
Ref Project

Relations

Buy Standard

Standard
ISO/IEC 10173:1998 - Information technology -- Telecommunications and information exchange between systems -- Interface connector and contact assignments for ISDN primary rate access connector located at reference points S and T
English language
15 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 10173
Second edition
1998-12-15
Information technology —
Telecommunications and information
exchange between systems — Interface
connector and contact assignments for
ISDN primary rate access connector located
at reference points S and T
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Connecteur d'interface et attributions de
contact pour connecteur d'accès à vitesse primaire ISDN situé aux points
de référence S et T
Reference number
B C
ISO/IEC 10173:1998(E)

---------------------- Page: 1 ----------------------
ISO/IEC 10173:1998(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards through technical committees established by the
respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in
liaison with ISO and IEC, also take part in the work.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
International Standard ISO/IEC 10173 was prepared by Joint Technical Committee, ISO/IEC JTC 1, Information
technology, Subcommittee SC 6, Telecommunications and information exchange between systems.
This second edition cancels and replaces the first edition (ISO/IEC 10173:1991), which has been technically
revised.
Annexes A to D of this International Standard are for information only.
©  ISO/IEC 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
ISO/IEC Copyright Office • Case postale 56 • CH-1211 Genève 20 • Switzerland
Printed in Switzerland
ii

---------------------- Page: 2 ----------------------
©
INTERNATIONAL STANDARD   ISO/IEC ISO/IEC 10173:1998(E)
Information technology — Telecommunications and information
exchange between systems — Interface connector and contact
assignments for ISDN primary rate access connector located at
reference points S and T
1 Scope
This International Standard specifies the 8-contact connector (plug and jack) and the assignments of its contact
numbers for use in the physical interfaces of Integrated Services Digital Network (ISDN) primary rate access
services conforming to ITU-T Recommendation I.431.
In this International Standard, as in ITU-T Recommendation I.431, the term “NT” is used to indicate the network
terminating layer 1 aspects of NT1s and NT2s, and the term “TE” is used to indicate terminal layer 1 aspects of
TE1s, TAs and NT2s.
NOTES
1 This International Standard specifies only those connector dimensions required to ensure intermatability of plug and
jack. Complete detailed specifications of the connector are the subject of IEC 603-7, see annex C.
2 ITU-T recognizes an alternative connection system which is not covered by this International Standard. It uses
coaxial connectors as specified in IEC 169-8 (see annex C), and is illustrated in annex B.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the editions indicated were valid. All standards are subject to
revision, and parties to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
ISO/IEC 8877:1992, Information technology – Telecommunications and information exchange between systems –
Interface connector and contact assignments for ISDN Basic Access Interface located at reference points S and T.
ITU-T Recommendation I.431:1993, Primary rate user-network interface – Layer 1 specification.
3 Definitions
For the purposes of this International Standard, the following definitions apply.
3.1
contact
the conductive element in a component which mates with the corresponding element to provide an electrical path
3.2
plug
free male connector
3.3
jack
fixed or free female connector
1

---------------------- Page: 3 ----------------------
©
ISO/IEC
ISO/IEC 10173:1998(E)
4 Connector
Plugs and jacks with up to eight contacts are specified for the interconnection of TEs and NTs (see 4.1). Options for
the use of keying features are specified in 4.2.
4.1 General requirements
Unless the TE is directly connected to the interface cable, one plug and jack pair shall be used to connect the TE
connecting cord to the interface cable at the interface point I as specified in ITU-T Recommendation I.431 (see
a
figures A.1 and B.1). Unless the NT is directly connected to the interface cable, a plug and jack pair shall be used to
connect the NT connecting cord at interface point I . In some countries, where the NT is a multi-port device such as
b
a PABX, a different connector (such as one that accommodates multiple interfaces) may be used at interface point
I . A typical arrangement of connecting cords and an interface cable is shown in figure A.1 of this International
b
Standard.
TE and NT connecting cords shall be terminated in plugs as specified below. The cord-terminating plug may have
four, six or eight contacts. The number of physical contacts required is dependent on the use by the associated
equipment, TE or NT, of optional powering provisions across the interface, and of optional provisions for shield
continuity. The optional powering capabilities are described in ITU-T Recommendation I.431, Section 8, and both
the powering and shield continuity options are summarized in annex A of this International Standard.
Unless intended for direct connection to the TE or NT, interface cables shall be terminated in jacks as specified
below. The jack may have four, six or eight contacts. As with the plug, the number of contacts required is dependent
on the use of powering and shield continuity options.
Plugs for use in ISDN primary rate applications shall conform to the dimensions specified in 4.2. Physical contacts
3, 6, 7 and 8 are shown for illustrative purposes in the referenced figures and may be omitted from the connector
assembly if not required.
4.2 Keying requirements
The specified 8-contact connectors may be equipped with keying features in accordance with national requirements
as specified in 4.2.2. Otherwise, the requirements specified in 4.2.1 apply.
When procuring equipment internationally that will use the 8-contact connectors, the user shall specify the keying
features in accordance with national requirements.
4.2.1 Non-keyed connector
The connector specified in this option has the dimensions of the connector specified in ISO/IEC 8877 (ISDN basic
access), with no additional provisions for keying.
The connector dimensions necessary to ensure mating of the plugs with jacks (see note 1) are specified in clause 4
of ISO/IEC 8877.
NOTE Recommendations for the avoidance of risks of damage through inadvertent cross-connection to basic access TEs
or NTs are given in annex D.
4.2.2 Keyed connector
The connector specified in this option has the same basic dimensions as the connector specified in ISO/IEC 8877,
but contains additional keying features to prevent inadvertent connection to services using that connector.
Figure 1 illustrates the cord-terminating plug, and figure 2 illustrates the jack.
Connector dimensions necessary to ensure mating of the plugs with jacks (see note 1) are specified in figures 3 to
5. Figure 3 gives the mechanical specifications of the 8-contact plug, and figure 5 that of the jack. Figure 4 gives the
plug/jack specification for mating.
Jacks for use in ISDN primary rate access applications in accordance with this option shall conform to the
dimensions specified in figures 4 and 5. However, as an opti
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.