Interconnect facility: In a communications network, one or more communications links that (a) are used to provide local area communications service among several locations and (b) collectively form a node in the network.

Note 1: An interconnect facility may include network control and administrative circuits as well as the primary traffic circuits.

Note 2: An interconnect facility may use any medium available and may be redundant.

Source: from Federal Standard 1037C and from MIL-STD-188