CX28331/CX28332/CX28333
2.0 Functional Description
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
2.2 Transmitter
2.2.3.1 Transmit Pulse
Mask Templates
Figure 2-4. Transmit Pulse Mask for DS3 Rates
Transmit Pulse Mask for STS-1 Rates
1.2
1
0.8
0.6
0.4
0.2
0
0.2
1
0.5
0
0.5
1
1.5
Normalized Symbol Time
100985_014
Table 2-1. DS3 Transmit Template Specifications
Time Axis Range (UI)
Normalized Amplitude Equation
Upper Curve
–0.85 ≤ T ≤ –0.68
–0.68 ≤ T ≤ 0.36
0.36 ≤ T ≤ 1.4
0.03
0.03 + 0.5 {1 + sin [(pi / 2)(1 + T / 0.34)]}
0.08 + 0.407 e –1.84(T – 0.36)
Lower Curve
–0.85 ≤ T ≤ –0.36
–0.36 ≤ T ≤ 0.36
0.36 ≤ T ≤ 1.4
–0.03
–0.03 + 0.5{1 + sin[(pi / 2)(1 + T / 0.18)]}
0.03
100985A
Conexant
2-5
CONEXANT [ CONEXANT SYSTEMS, INC ]
