To maintain communication between devices, which is important for monitoring and device management of critical processes like security, industrial processes, IoT devices, and construction, power backup or uninterrupted power supply is essential. 

Battery Bank.

Telecommunication systems such remote terminal units, remote data acquisition, wireless sensors, IoT gateways that are connected to or has inbuilt wireless backhaul system require uninterrupted power supply to ensure up time of devices is not affected.