1. In a communications circuit, such as an electronic circuit or a fiber optic circuit, that is between (a) a technical control facility and (b) selected terminal or repeater facilities within the system. Common abbreviationLEC.2. In multichannel radiocommunications systems, usually a handset connection at the radio station location. Synonym local orderwire. See also circuit,  communications system,  engineering circuit,  fiber optic circuit,  handset,  multichannel,  radiocommunications,  radiocommunications system,  radio station,  repeater,  technical control facility,  terminal.