RIS-0794-CCS Iss 1

This Railway Industry Standard (RIS) provides requirements and guidance for GSM-R train voice radio, for the rail industry to adopt if they so choose. It supports railway undertakings by capturing single duty holder requirements relating to the design of train voice radio systems, and is associated with the Railway Group Standard (RGS) GKRT0094 and Guidance Note (GN) GKGN0694 for Train Voice Radio Systems. Please note: This amendment attached to this document contains sound files. For these files to work you will need to have Adobe Acrobat Reader X or Adobe Acrobat Reader XI and above as well as Adobe Flash Player installed on your PC. Please also ensure your Adobe Acrobat settings include www.rssb.co.uk. To check this do the following in Adobe Acrobat: Edi menu - Preferences - Security (Enhanced) You need to uncheck the box 'Enable Protected Mode at startup and you need to 'Add Folder Path' (www.rssb.co.uk) - Save

All requirements have been reviewed and rationale and guidance has been added. Requirements relating to the redundant Cab Secure Radio (CSR) and National Radio Network (NRN) have been withdrawn. Requirements added are for the algorithm enabling use of European vehicle numbers and the functional capability to issue berth triggered broadcast and non-verbal acknowledgements.