electronic serial number (ESN)

The unique International Organization for Standards (ISO) object identification number assigned to a mobile or other electronic device by the manufacturer. The ESN consists of the number issued to the manufacturer (called the arc), which is the same for all devices from that manufacturer, followed by a unique number for the device itself.

The OpenWay Collection Engine (CE) uses the ESN identifier to identify each electric meter it communicates with. The CE displays the ESN as text with a decimal point separator in all interfaces, messages, and data sent to the utility application.