SIST ETS 300 288:1999/A1:1999
(Amendment)Business TeleCommunications (BTC); 64 kbit/s digital unrestricted leased line with octet integrity (D64U); Network interface presentation
General Information
- Abstract
This amendment recommends to use the ISDN basic rate connector instead of the previous connector developed for primary rate ISDN which has some tolerance problems.
- Status
- Published
- Publication Date
- 31-Oct-1999
- Technical Committee
- BTC - Business telecommunications
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Nov-1999
- Due Date
- 01-Nov-1999
- Completion Date
- 01-Nov-1999
- Mandate
- T-147-2
Overview
SIST ETS 300 288:1999/A1:1999 is an important amendment within the scope of business telecommunications, focusing on 64 kbit/s digital unrestricted leased lines with octet integrity (D64U). Originating from the European Telecommunications Standards Institute (ETSI) and adopted by the Slovenian Institute for Standardization (SIST), this amendment specifically addresses improvements to the network interface presentation. The key change recommends the use of the ISDN basic rate connector for the interface, moving away from the previous primary rate ISDN connector due to manufacturing issues and tolerance problems. This aligns leased line technology more closely with widely available ISDN components.
Key Topics
- Network Interface Requirements: The amendment clarifies the physical characteristics of the leased line network interface. It requires the interface to support either hardwired connections, which terminate wires with solid conductors of specific diameters, or, with user agreement, an alternative socket-based connection.
- Connector Standardization: Due to the unavailability of a previously specified standardized connector, the document recommends adopting the ISDN basic rate connector, ensuring improved compatibility and easier sourcing of components.
- Shielding and EMC Compliance: The amendment introduces explicit provisions for shielding connections to meet electromagnetic compatibility (EMC) requirements. A defined connection point for cable shields ensures proper grounding and minimizes electromagnetic interference.
- Testing and Compliance: Testing procedures are anchored at the connection point outlined in the new physical interface specification, ensuring that installations comply with both the physical and EMC requirements laid out in the standard.
- Simplified Grounding Instructions: Previous references to specific pin assignments for shield grounding in sockets are replaced by a generic requirement tied to the defined shield connection point, allowing more flexibility in both design and compliance verification.
Applications
SIST ETS 300 288:1999/A1:1999 is relevant to organizations and service providers implementing digital leased lines for business data communications where octet integrity at 64 kbit/s is required. Key practical applications include:
- Business Communication Networks: Establishing reliable, high-integrity digital channels between business locations or with external partners.
- Interconnection to ISDN Networks: Leveraging the ISDN basic rate connector aids in compatibility with existing ISDN infrastructure, easing deployment and reducing costs.
- Leased Line Service Deployment: Service providers can streamline their offerings by adopting the standardized connector and clear interface requirements.
- Network Equipment Manufacturing: Equipment designers benefit from more flexible options for connector types and explicit guidance on EMC compliance, reducing development complexity and timelines.
Related Standards
For professionals working with digital leased lines, the following standards provide additional context and harmonization:
- ETSI ETS 300 288: The base standard for 64 kbit/s digital unrestricted leased lines with octet integrity.
- ISO/IEC 10173: Previously specified connector requirements - referenced for historical background.
- ISDN Standards (Basic Rate and Primary Rate): Guidelines for connectors, signaling, and network access.
- IEC/EN EMC Standards: Electromagnetic compatibility requirements influencing shielding in telecommunications cabling.
By supporting streamlined network interface configurations and aligning with widely-used ISDN connectors, SIST ETS 300 288:1999/A1:1999 ensures robust, future-proof, and cost-effective business telecommunications infrastructure.
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Frequently Asked Questions
SIST ETS 300 288:1999/A1:1999 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Business TeleCommunications (BTC); 64 kbit/s digital unrestricted leased line with octet integrity (D64U); Network interface presentation". This standard covers: This amendment recommends to use the ISDN basic rate connector instead of the previous connector developed for primary rate ISDN which has some tolerance problems.
This amendment recommends to use the ISDN basic rate connector instead of the previous connector developed for primary rate ISDN which has some tolerance problems.
SIST ETS 300 288:1999/A1:1999 is classified under the following ICS (International Classification for Standards) categories: 33.040.50 - Lines, connections and circuits. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST ETS 300 288:1999/A1:1999 is associated with the following European legislation: Standardization Mandates: T-147-2. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST ETS 300 288:1999/A1:1999 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
ETS 300 288
AMENDMENT A1
November 1995
Source: ETSI TC-BTC Reference: RE/BTC-02063
ICS: 33.120
Key words: ONP, leased line
This amendment A1 modifies
the European Telecommunication Standard ETS 300 288 (1994)
Business TeleCommunications (BTC);
64 kbit/s digital unrestricted leased line
with octet integrity (D64U);
Network interface presentation
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1995. All rights reserved.
Page 2
ETS 300 288 January 1994/A1: November 1995
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
Page 3
ETS 300 288 January 1994/A1: November 1995
Foreword
This amendment to ETS 300 288 (1994) has been produced by the Business TeleCommunications (BTC)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
This amendment changes ETS 300 288 (1994) as described below:
The connector type specified, conforming to ISO/IEC 10173 (1991), cannot be manufactured. Since a
standardized connector is not available, the leased line is required to provide an interface suitable for
hardwired connection. However, an alternative means of connection, using a socket, may be provided.
Transposition dates
Date of adoption of this amendment: 31 October 1995
Date of latest announcement of this amendment (doa): 31 January 1996
Date of latest publication or endorsement of this amendment (dop/e): 31 July 1996
Date of withdrawal of any conflicting National Standard (dow): 31 July 1996
Page 4
ETS 300 288 January 1994/A1: November 1995
Amendments
Page 7, amendment to clause 2
Delete reference [7].
Page 9, amendment to subclause 5.1
Replace subclause 5.1 and its subclauses with subclauses 5.1, 5.1.1, 5.1.2 and 5.1.3 as given below:
"5.1 Physical characteristics
The connection arrangements provided by the leased line interface shall be suitable for hardwired
connection (see subclause 5.1.1). However, with the agreement of the user, an alternative means of
connection, using a socket, may be provided (see subclause 5.1.2).
The transmit pair is the output from the network interface. The receive pair is the input to the network
interface, as shown in figure 1. Where the terms "output" and "input" are used without qualification in this
ETS, they refer to the network interface.
OUTPUT INPUT
RX
TX
TERMINAL
NETWORK
EQUIPMENT
INTERFACE
INTERFACE
RX TX
OUTPUT
INPUT
Figure 1
The use on the terminal equipment side of the interface of shielded cables may be necessary to meet
radiation and immunity requirements defined in Electro-Magnetic Compatibility (EMC) standards.
Therefore the NTP is required to provide a point for connection of the shield (see subclause 5.1.3).
5.1.1 Hardwired connection
Requirement: Where the leased line is being presented as a hardwired connection, the leased line
interface shall provide a means of terminating wire with solid conductors having diameters in the range 0,4
to 0,6 mm. The leased line provider shall provide information on the configuration of the means of
connection.
Test: There is no test. All subsequent tests are carried out via the specified connection method.
5.1.2 Socket specification
Th
...
SLOVENSKI STANDARD
01-november-1999
Poslovne telekomunikacije (BTC) - Digitalni zakupljeni vodi za prenosno hitrost 64
kbit/s brez omejitev za prenašane signale in z ohranjanjem oktetov (D64U) -
Omrežni vmesnik
Business TeleCommunications (BTC); 64 kbit/s digital unrestricted leased line with octet
integrity (D64U); Network interface presentation
Ta slovenski standard je istoveten z: ETSI ETS 300 288/A1 ed.1 (1995-06)
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
ETS 300 288
AMENDMENT A1
November 1995
Source: ETSI TC-BTC Reference: RE/BTC-02063
ICS: 33.120
Key words: ONP, leased line
This amendment A1 modifies
the European Telecommunication Standard ETS 300 288 (1994)
Business TeleCommunications (BTC);
64 kbit/s digital unrestricted leased line
with octet integrity (D64U);
Network interface presentation
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1995. All rights reserved.
Page 2
ETS 300 288 January 1994/A1: November 1995
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
Page 3
ETS 300 288 January 1994/A1: November 1995
Foreword
This amendment to ETS 300 288 (1994) has been produced by the Business TeleCommunications (BTC)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
This amendment changes ETS 300 288 (1994) as described below:
The connector type specified, conforming to ISO/IEC 10173 (1991), cannot be manufactured. Since a
standardized connector is not available, the leased line is required to provide an interface suitable for
hardwired connection. However, an alternative means of connection, using a socket, may be provided.
Transposition dates
Date of adoption of this amendment: 31 October 1995
Date of latest announcement of this amendment (doa): 31 January 1996
Date of latest publication or endorsement of this amendment (dop/e): 31 July 1996
Date of withdrawal of any conflicting National Standard (dow): 31 July 1996
Page 4
ETS 300 288 January 1994/A1: November 1995
Amendments
Page 7, amendment to clause 2
Delete reference [7].
Page 9, amendment to subclause 5.1
Replace subclause 5.1 and its subclauses with subclauses 5.1, 5.1.1, 5.1.2 and 5.1.3 as given below:
"5.1 Physical characteristics
The connection arrangements provided by the leased line interface shall be suitable for hardwired
connection (see subclause 5.1.1). However, with the agreement of the user, an alternative means of
connection, using a socket, may be provided (see subclause 5.1.2).
The transmit pair is the output from the network interface. The receive pair is the input to the network
interface, as shown in figure 1. Where the terms "output" and "input" are used without qualification in this
ETS, they refer to the network interface.
OUTPUT INPUT
RX
TX
TERMINAL
NETWORK
EQUIPMENT
INTERFACE
INTERFACE
RX TX
OUTPUT
INPUT
Figure 1
The use on the terminal equipment side of the interface of shielded cables may be necessary to meet
radiation and immunity requirements defined in Electro-Magnetic Compatibility (EMC) standards.
Therefore the NTP is required to provide a point for connection of the shield (see subclause 5.1.3).
5.1.1 Hardwired connection
Requirement: Where t
...