SIST EN 300 119-4 V2.1.1:2006

• Abstract:

  The present document details requirements for subracks for use in miscellaneous racks/cabinets, as described in EN 300 119-3 [4]. The subrack will normally be supplied as a fully assembled structure, unequipped, partially equipped or fully equipped with plug-in units, etc.

• Status: Published
• Publication Date: 31-Jan-2006
• ICS: 19.040 - Environmental testing
• ICS: 33.050.01 - Telecommunication terminal equipment in general
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2006
• Due Date: 01-Feb-2006
• Completion Date: 01-Feb-2006
• Ref Project: ETSI EN 300 119-4 V2.1.1 (2004-09) - Environmental Engineering (EE); European telecommunication standard for equipment practice; Part 4: Engineering requirements for subracks in miscellaneous racks and cabinets

Overview

SIST EN 300 119-4 V2.1.1:2006 is a European standard developed for the telecommunications sector, specifically focusing on the engineering requirements for subracks used in miscellaneous racks and cabinets. Created under the scope of Environmental Engineering (EE), this standard ensures interoperability, safety, and best practice when installing subracks-whether supplied fully equipped, partially equipped, or unequipped-within broader telecommunication equipment arrangements.

By providing clear specifications for dimensions, accessibility, weight limits, and compliance with electromagnetic compatibility (EMC) requirements, this document helps manufacturers, system integrators, and end-users deploy reliable and safe telecommunications infrastructure. The standard aligns with the broader EN 300 119 series, which covers various aspects of equipment housing for public telecom networks.

Keywords: subrack, miscellaneous cabinet, miscellaneous rack, equipment practice, environmental engineering, telecommunications, European standard

Key Topics

• Scope of Application

  • Targets subracks installed in miscellaneous racks and cabinets, described in EN 300 119-3.
  • Subracks covered may be delivered as fully assembled, unequipped, partially, or fully equipped with plug-in units.

• Dimensional Requirements

  • Specifies key mechanical dimensions including height, width, and depth to ensure interchangeability and proper fit in miscellaneous racks and cabinets.
  • Reference figures and tables for industry-aligned size coordination and integration.

• Accessibility

  • Mandates access solely from the front for subracks in racks or cabinets with a 300 mm depth, enabling installations against walls or in back-to-back arrangements.

• Weight Limits

  • Recommends a maximum weight of 18 kg for unequipped subracks to ensure safe handling.
  • Requires suppliers to disclose total equipped weight when requested, supporting floor load calculations for telecommunications centers.

• Electromagnetic Compatibility (EMC)

  • Ensures compliance with Directive 89/336/EEC and associated emerging standards for EMC.
  • Highlights the importance of electrostatic discharge considerations.

Applications

The guidance provided by SIST EN 300 119-4 V2.1.1:2006 is essential for:

• Telecommunications Networks:

  • Assists operators and installers in housing critical network components with safe, interoperable subracks in diverse rack/cabinet configurations.

• System Integrators:

  • Supports product developers and integration teams in selecting or designing subracks that ensure seamless installation and future expandability.

• Equipment Manufacturers:

  • Guides the design and supply of compliant subracks to meet European telecom standards, ensuring marketability and acceptance.

• Facility Engineers:

  • Supplies necessary data for weight and space planning when building or upgrading telecom equipment rooms.

Related Standards

SIST EN 300 119-4 is part of a multi-part series that addresses various equipment practices in telecommunications:

• EN 300 119-1: Introduction and terminology for environmental engineering in telecom equipment housing.
• EN 300 119-2: Engineering requirements specifically for racks and cabinets.
• EN 300 119-3: Engineering requirements for miscellaneous racks and cabinets.
• EN 300 119-5: Covers preferred thermal management solutions and related criteria.
• IEC 60917-2-2: Reference for interface coordination dimensions and modulation order in electronic equipment housing.
• EN 300 019: Environmental conditions and tests for telecom equipment.

Following this standard ensures compatibility, safety, and future-proof integration of telecom subracks within various European infrastructure contexts.

SLOVENSKI STANDARD
01-februar-2006
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Environmental Engineering (EE); European telecommunication standard for equipment
practice; Part 4: Engineering requirements for subracks in miscellaneous racks and
cabinets
Ta slovenski standard je istoveten z: EN 300 119-4 Version 2.1.1
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
33.050.01 Telekomunikacijska Telecommunication terminal
terminalska oprema na equipment in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)

Environmental Engineering (EE);
European telecommunication standard
for equipment practice;
Part 4: Engineering requirements for
subracks in miscellaneous racks and cabinets

2 ETSI EN 300 119-4 V2.1.1 (2004-09)

Reference
REN/EE-TMG006
Keywords
equipment practice, environment, rack
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3 ETSI EN 300 119-4 V2.1.1 (2004-09)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
3 Dimensions for subracks .5
4 Accessibility.6
5 Weight.6
5.1 Unequipped subrack.6
5.2 Equipped subrack.6
6 Electromagnetic compatibility and electrostatic discharge requirements .6
Annex A (informative): Illustrative figures.8
Annex B (informative): Bibliography.10
History .11

ETSI
4 ETSI EN 300 119-4 V2.1.1 (2004-09)
Intellectual Property Rights
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Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Environmental
Engineering (EE).
The present document is part 4 of a multi-part deliverable aimed at setting out, on a common basis, the engineering
requirements for telecommunication practice, for housing equipment forming part of a public telecommunications
network. EN 300 119-1 [2] is a general introduction and explains the terminology used. EN 300 119-2 [3] specifies the
engineering requirements for racks and cabinets and EN 300 119-3 [4] specifies the engineering requirements for
miscellaneous racks and cabinets. EN 300 119-5 [5] covers the preferred thermal management solutions for subracks,
racks/cabinets and miscellaneous racks/cabinets installed indoors in restricted access locations, for the removal of he
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