Island Line CIS and PA installation

TDM installed Public Address (PA) systems and customer information system (CIS) displays at Ryde St John’s Road, Brading, Sandown, Lake and Shanklin on the Island Line for SWR.

The requirement

The work was a Department for Transport Business Plan Commitment, due by 31 March 2023. The stations had few existing cable routes between platforms, and access for new ones would have needed extensive line blocks or track possessions. Brading is a listed building and needed specific finishes. Services had to keep running during installation.

What TDM delivered

• PA at every station: Zenitel (ASL) audio systems with Penton loudspeakers.
• Infotec CIS displays, free-issued by the customer, on mounting brackets and columns that TDM designed and manufactured.
• Ampetronic HLS-2C induction loop panels.
• Altron AEC external cabinets for the control equipment.
• NICEIC-certified electrical installation.

How the work was done

• Survey and design. TDM surveyed all the stations, then designed the mounting for each location and the civil works for the cabinets and CIS columns.
• 4G displays. Platforms with no IT network connection took 4G-enabled displays.
• Wi-Fi bridge. A point-to-point Wi-Fi bridge carries IP audio to the loudspeakers on remote platforms. With the 4G displays, it removed the need for extensive civil engineering.
• Proof before site. TDM demonstrated the approach in its Crawley systems suite before deployment.
• Listed station. Brading was completed with the finishes and planning considerations its listing required.

The result

• The programme met the deadline, on time and within budget.
• TDM handed over O&M documentation for maintenance.