Comtech EF Data SDM-2020 User Manual
Page 173
SDM-2020 Satellite Demodulator
Revision 4
G.703 Data Interface
MN/SDM2020D.IOM
11–7
11.1.4.2
Receive Data Rate 2.048 Mbps Specifications
Refer to Table 11-3 for data rate specifications.
Table 11-3. RX Data Rate 2.048 Mbps
Parameter
Specification
Data Rate
1.544 Mbps,
± 30 ppm
Line Coding
B8ZS and AMI at 2.048 Mbps
Pulse Shape
Rectangular per ITU-T-G.703, Figure 12/G.703.
Jitter Characteristics:
Input Jitter
Output Jitter
Complies with ITU-T-G.824 and Table 1/G824.
In accordance with ITU-T-G.824 and Figure
1/G.824.
11.1.4.3
Receive Data Rate 6.312 Mbps Specifications
Refer to Table 11-4 for data rate specifications.
Table 11-4. RX Data Rate 6.312 Mbps
Parameter
Specification
Data Rate
6.312 Mbps,
± 30 ppm
Line Coding
B8ZS and AMI at 6.312 Mbps
Pulse Shape
Rectangular per ITU-T-G.703, Figure 12/G.703.
Jitter Characteristics:
Input Jitter
Output Jitter
Complies with ITU-T-G.824 and Table 1/G824.
In accordance with ITU-T-G.824 and Figure
1/G.824.
11.1.4.4
Receive Data Rate 8.448 Mbps Specifications
Refer to Table 11-5 for data rate specification.
Table 11-5. RX Data Rate 8.448 Mbps
Parameter
Specification
Data Rate
8.448 Mbps,
± 30 ppm
Line Coding
HDB3 and AMI at 8.448 Mbps
Pulse Shape
Rectangular with pulse width of 59 ns. per ITU-T-G.703, Figure
13/G.703.
Jitter Characteristics:
Input Jitter
Output Jitter
Complies with ITU-T-G.823 and Table 1/G.823.
Complies with ITU-T-G.823 and Figure 1/G.823