... with 2Mbit/s interfaces and with V.24/V.28/RS232, V.35, V.36, RS449, X.21, RS485, EIA530, EIA530A ... , and equidirectional 64kbit/s interfaces.For Datacom: V.24/RS232/V.28, V.35, V.36, X.21, RS-449 ... pcAttached accessories475Ω Coaxial testing line1 pc5BNC-L9 Testing lineCESHIYI2 pcs6RS232 serial line1 pc7Special testing cable of data communicationV.24,RS-485 ...