... /V.28/RS232, V.35, V.36, RS449, X.21, RS485, EIA530, EIA530A, and equidirectional 64kbit/s interfaces.For Datacom: V ... , V.35, V.36, X.21, RS-449, RS-485, RS422, EIA-530, EIA-530A datacom testing SYNCH and ASYNCH testing ... : Internal or external clockPhase relation between receive clock and receive data: Equidirection or reverse direction.Clock Rate: 2048kbps at a maximum ...