Is there such a cable and if so which signal company/manufacturer can supply? Peter Heath Senior Assistant Engineer Greater Manchester Urban Traffic Control Tel: 0161 247 3162 Mobile: 07876 218272 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. Please contact internet.administrators@xxxxxxxxxxxxxxxxxxxxxxx with any queries. ----------------------------------------------------------- A message from the TCUG mailing list. For information about the list visit //www.freelists.org/webpage/tcug