The role of the data link is for the the transmission of the assignment and other messages from the Command and Control system or the Terrafix Text Message application to the vehicles and for transmission of status and other information from the vehicles to the headquarters.

The RAM Mobile Data network uses standard Mobitex protocols and modems. A typical message is transmitted in under five seconds between base and mobile applications.

Tariffs are based upon monthly data usage per vehicle. Various tariff bands are available with the most appropriate selected for a particular application.

Base connection can either be via a fixed modem or X25 link.

Transcomm UK host the RAM network.