Standard: LUL - 1-140


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The scope of this engineering standard covers all areas of the telecommunications systems used on the London Underground system. It includes the corporate philosophy and principles to be employed to ensure that the whole life asset performance of the telecommunications systems is kept at an optimum level.

The philosophy and principles shall form the foundation of the new Communications Engineering standards, and embodies the general principles that govern the approach of London Underground to the subject of telecommunications engineering. The philosophy and principles are primarily based on the Customer Service Delivery Standards (CSDS), and place special emphasis on safety, security and quality identified by the Users of the telecommunications systems on London Underground Limited.

This standard is the first in a suite of documents to be used for telecommunications systems and equipment. Attachment 5 Illustrates the general hierarchy of these standards. The telecommunications systems installed in the LU rolling stock are covered by current rolling stock standards.

This standard replaces E9003 A1. The Standard has been re formatted and re-numbered. There were no technical changes.


The telecommunications systems used on London Underground are critical to the effective management of the operational service and general safety and security throughout the corporate organisation. The systems are used in a variety of business processes and provide essential communications links in a number of corporate facilities.

Organization: London Underground Library
Document Number: 1-140
Publish Date: 2007-10-01
Page Count: 52
Change Type: STCH
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: NO
Current Version: NO
Status: Inactive

Document History

Document # Change Type Update Date Revision Status
S1140 Change Type: COMPLETE REVISION Update Date: 2017-02-01 Status: ACTV
1-140 Change Type: STCH Update Date: 2007-10-01 Status: INAC

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