The radio system will provide National Grid & key contractor personnel with crystal clear voice communications in all areas of the tunnels, shafts, and the surface headhouses. All voice transmissions are recorded locally on a server, with the radio user, date and time stamps also recorded. The system includes an emergency alarm and man-down features.
Each headhouse is connected by a fibre optic ring to provide full redundancy. Fully manageable Cisco switches were deployed in each radio system cabinet.
All alarms from the four different headhouses are monitored from a central control room desk, all provided as part of the tunnel critical radio system. A voice dispatcher was installed as part of the system.
