Patent ID: 9632112
Date: 2017-04-25
CPC Classifications: G01R

Claim:
1. An intelligent electronic device for measuring a characteristic of electricity, comprising: a housing of a base unit having a front, a rear, a top opposite a bottom, and a first side opposite a second side connected to the front and to the rear, the housing defining an interior volume and including therein a sensor configured to sense a characteristic of electricity, the rear of the housing including a rear opening through which a first connector is accessed when present in the housing, the first connector for connecting to a corresponding connector of an expansion module of a type when mounted to the base unit, and the first side of the housing including a side opening through which a second connector is accessed when present in the housing, the second connector for connecting to the corresponding connector of the expansion module of the same type when mounted to the base unit, wherein the rear opening is located a first distance from the first side and a second distance from the top, and wherein the side opening is located the first distance from the rear and the second distance from the top, such that the corresponding connector of the expansion module, when connected to the base unit, connects to the second connector through the side opening in a side configuration or to the first connection through the rear opening in a rear configuration.