Signal generator rate is 115 kbps, 50%
duty cycle. Rise and fall times are less than 6 ns, and nominal output levels are 0
V and 3 V. Coupling capacitor, CC, is 220 nF.
Figure 7-1 Measurement of Modem Driver Output Voltage With 50-Ω Loads
Figure 7-2 Measurement of Modem Receiver Propagation Delays