TRUNK

1. In a communications network , a single transmission channel between two points that are switching centers or nodes, or both. ( 188 ) 2. [A] circuit between switchboards or other switching equipment, as distinguished from circuits which extend between central office switching equipment and information origination/termination equipment. [ 47CFR ] Note: Trunks may be used to interconnect switches, such as major, minor, public and private switches, to form networks.