21. In full duplex mode, one lane is used for Transmit while the other is used for Receive. 22. When full duplex is used, the call is similar to one using a mobile phone or landline. 23. It is designed for use by two-frequency half duplex mobile radio units and a full duplex TSC. 24. The two additional differential pairs are for SuperSpeed data transfer; they are used for full duplex SuperSpeed signaling. 25. In full duplex , switch and station can send and receive simultaneously, and therefore modern Ethernets are completely collision-free. 26. Data communication and data transmission upgrades utilize RS-422 and RS-485 full duplex channels, and ARINC 429 technical standards. 27. These systems claim symmetric and full duplex communication in excess of 1 Gbit / s in each direction. 28. Phone memory is limited to 19 MB . The Cosmos contains a full duplex speakerphone with external volume controls. 29. Only one user can speak at a time, unless both are equipped with " full duplex " sound cards. 30. Other vehicular equipment had telephone handsets, rotary or pushbutton dials, and operated full duplex like a conventional wired telephone.
