PurposeUSED TO FACILITATE TESTING & TROUBLESHOOTING OF OPTICAL FIBER AND TERMINALS IN ARINC 600 STYLE AIRPLANE CONNECTORSAirplane737, 747, 767, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777-8, 777-9, 777F, 787-10, 787-8, 787-9Usage CodeMAINTENANCE 