scope:

This manual documents current Network Rail signalling product specifications. It applies to any organisation involved in the development of any product that will be approved through the product acceptance process.

NOTE: Signalling specifications not currently part of this manual are listed in appendix A.

Purpose

This manual contains Signalling product specifications that define Network Rail customer requirements. Product specifications provide the following benefits:

a) Signalling products are developed and manufactured to Network Rail requirements;

b) improved asset compatibility and reliability through the setting of customer requirements to follow the process set out in NR/L2/RSE/0005;

c) helps manufacturers to understand Network Rail's requirements and gain product acceptance.