From Longman Dictionary of Contemporary Englishconnect something ↔ up phrasal verbJOIN something TOGETHERto join something to the main supply of electricity, gas, or water, to the telephonenetwork, or to another piece of equipmentIs the washing machine connected up yet? withThe autopilot can be connected up with the flight recorder. →connect→ See Verb table
Examples from the Corpus
connect up• He was connected all up and down the Cape.