Ethernet switches deployed for emergency roadside reliablity

Considering the heavy traffic of the road and high temperature in India, especially in the summers when the temperature may exceed 40°C, a solution was required that would continue to operate in difficult environmental conditions. An emergency roadside telephone system consists of several self-powered, emergency telephone terminals located at remote sites to enable communications with a central station for emergency assistance when an accident occurs.

The emergency phones are placed at specific intervals along the road and each phone is connected to an IES-2042FX industrial Ethernet switch. These lite-managed switches are linked over fibre networks and can be managed from the control centre. Many of IES-2042FX industrial Ethernet switches were deployed at a distance of 2km from each other.

To ensure high availability and reliability, the switches were installed in ring topology. As a result, data will continue to be transmitted to the control centre when a device in the loop fails. At the control center, an Ethernet backbone built with the IES-3062FX managed industrial Ethernet switch enables communications with roadside IES-2042FX.

With more advanced management capabilities, the IES-3062FX allows the administrator to manage the switches easily using Web-based, Telnet, Console, or CLI interfaces. The administrator can also increase the bandwidth between two Ethernet switches using the port trunk function of the IES-3062FX. By grouping several ports together to function as one logical path, the bandwidth between switches is increased, which is particularly useful during peak hours when the traffic load is heavy.