Interconnection vs. Interrelation — What's the Difference?

In telecommunications, interconnection is the physical linking of a carrier's network with equipment or facilities not belonging to that network. The term may refer to a connection between a carrier's facilities and the equipment belonging to its customer, or to a connection between two or more carriers.

Mutual or reciprocal relation; correlation; interrelationship

To be connected with each other

Mutual or reciprocal relation; correlation.

To connect reciprocally

Mutual or reciprocal relation or relatedness;

A connection (physical or logical) between multiple things

Connecting renewable-energy systems to the power grid

Connection between; mutual connection.

A state of being connected reciprocally;

(computer science) the act of interconnecting (wires or computers or theories etc.)