Init Transient Cndtn = DSP Mode Disabled Max Rate = 400e+3 Hz Token 6 Multiplier: Parametric Non Inputs from t18p0 t3p0 Outputs to 8 25 Max Rate = 400e+3 Hz Token 8 Operator: Linear Sys Butterworth Lowpass IIR 3 Poles Fc = 10e+3 Hz Quant Bits = None Init Transient DSP Mode Disabled Max Rate = 400e+3 Hz Token 5 Source: Gauss Noise Std Dev = 0 v Mean = 0 v Max Rate = 400e+3 Hz Cndtn = Token 10 Operator: Delay Non-Interpolating Delay = 0 sec = 0.0 smp Output 0 = Delay t9 Output 1 = Delay - dT Max Rate (Port 0) = 400e+3 Hz Token 9 Operator: Sampler Interpolating Rate = 400e+3 Hz Aperture = 0 sec Aperture Jitter = 0 sec Max Rate = 400e+3 Hz Token 11 Operator: Hold Last Value Gain = 1 Out Rate = 400e+3 Hz Max Rate = 400e+3 Hz Token 12 Logic: Buffer Gate Delay = 0 sec Threshold = 0 v True Output = 1 v False Output = 0 v Rise Time = 0 sec Fall Time = 0 sec Max Rate = 400e+3 Hz
（二）、PCM系统：
上图中，图符0、1、2为三个正弦波发生器，叠加后作为模拟信号的输入，图符6为扩压器，图符8为AD转换器，图符14为脉冲发生器，图符40、41构成数字信号的并串转换，图符43为保持器，图符47为2PSK通信子系统，图符45构成数字信号的串并转换，图符9是DA转换，图符7为解压扩器，图符12为低通滤波器。 2PSK调制解调模块：
并串转换模块：
图符参数： 编号 Token 0 库/名称 Source: Sinusoid 参数 Amp = 2 v Freq = 200 Hz Phase = 0 deg Output 0 = Sine t3 Output 1 = Cosine Max Rate (Port 0) = 400e+3 Hz Token 1 Source: Sinusoid Amp = 2 v Freq = 300 Hz Phase = 0 deg Output 0 = Sine t3 Output 1 = Cosine Max Rate (Port 0) = 400e+3 Hz Token 2 Source: Sinusoid Amp = 2 v Freq = 100 Hz Phase = 0 deg Output 0 = Sine t3 Output 1 = Cosine Max Rate (Port 0) = 400e+3 Hz Token 3 Adder: Parametric Non Inputs from t0p0 t1p0 t2p0 Outputs to 4 6 Max Rate = 400e+3 Hz Token 6 Comm: Compander A-Law Max Input = ±5 Max Rate = 400e+3 Hz Token 14 Source: Pulse Train Amp = 1 v