Ethernet switches deployed for emergency roadside reliablity

23rd March 2015

Barney Scott

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Datasheet

When electronics design company ORing was tasked with installing emergency roadside telephone solutions in India, the company hoped to build a network that would not only provide fast warnings to emergency services in the event of an accident, but also to ensure reliable communications for the public in the case of accidents or breakdowns. This road serves as a major role in the daily commutes of thousands of passengers.

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.