J14A-20ZK1B2/TJL rectangular aviation connector, conforms to GJB142A-94 standard, and is a low-frequency electrical connector. J14A is the main name code, 20 indicates the number of connectors, Z denotes the socket, K signifies the socket, K1 indicates the contact piece terminal is bent (90°) for PCB mounting. B2 denotes the side-mounted flange socket.