Electrical conditioning monitoring module for a vehicular electrical system

An interface device coupled between a supply side of an electrical circuit, a load side of the electrical circuit and at least one sensing input terminal of a monitor, the interface device comprising:

• a common terminal adapted to be coupled to a supply side terminal of the electrical circuit;
• at least one sensing terminal adapted to be coupled to a corresponding monitor sensing input terminal;
• at least one load terminal adapted to be coupled to a corresponding load side branch terminal of the electrical circuit, each load terminal being substantially at the same electrical point as a corresponding sensing terminal;
• at least one sensing impedance coupled between the common terminal and a corresponding load terminal, each sensing impedance having an impedance substantially less than the aggregate load side impedance between said sensing impedance and ground when said interface device is coupled in series between the supply side and load side of the electrical circuit;
• and
• at least one supply side electrical circuit protective element in series between the common terminal and the aggregate sensing impedance of the interface device.

An interface device coupled between a supply side of an electrical circuit, a load side of the electrical circuit and at least one sensing input terminal of a monitor, the interface device comprising:

• a common terminal adapted to be coupled to a supply side terminal of the electrical circuit;
• at least one sensing terminal adapted to be coupled to a corresponding monitor sensing input terminal;
• at least one load terminal adapted to be coupled to a corresponding load side branch terminal of the electrical circuit, each load terminal being substantially at the same electrical point as a corresponding sensing terminal;
• at least one sensing impedance coupled between the common terminal and a corresponding load terminal, each sensing impedance having an impedance substantially less than the aggregate load side impedance between said sensing impedance and ground when said interface device is coupled in series between the supply side and load side of the electrical circuit;
• and
• at least one load side electrical circuit protective element in series between one of the sensing impedances and the corresponding load terminal.

An interface device coupled between a supply side of an electrical circuit, a load side of the electrical circuit and at least one sensing input terminal of a monitor, the interface device comprising:

• a common terminal adapted to be coupled to a supply side terminal of the electrical circuit;
• at least one sensing terminal adapted to be coupled to a corresponding monitor sensing input terminal;
• at least one load terminal adapted to be coupled to a corresponding load side branch terminal of the electrical circuit, each load terminal being substantially at the same electrical point as a corresponding sensing terminal;
• at least one sensing impedance coupled between the common terminal and a corresponding load terminal, each sensing impedance having an impedance substantially less than the aggregate load side impedance between said sensing impedance and ground when said interface device is coupled in series between the supply side and load side of the electrical circuit;
• and
• at least one monitor circuit protective element in series between one of the sensing impedances and the corresponding sensing terminal.