Customer Interface Unit Three Phase PLC

The customer interface is connected by a power cord to an existing mains outlet in the household. Under normal conditions, when there is sufficient credit in the meter, the customer interface unit operates directly from mains voltage. However in the event that the meter credit expires and the meter disconnects power to the house, the customer interface unit is fitted with two standard AA Alkaline batteries to allow the customer to re-enter a new credit voucher. The customer interface has a large backlit display with configurable functionality. The customer or field technician can access meter parameters by entering specific register information using the keypad. In addition, the customer interface unit has audible low credit warning tones that can be silenced with a key press.