Comtech EF Data SDM-2020, Installation And Operation Manual

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Data Interfaces SDM-2020 Satellite Demodulator
A–46 Rev.3
A.6.4 Receive Specifications
The following receive specifications apply when the G.703 data interface is installed in
an SDM-2020 Demodulator.
A.6.4.1 Receive Data Rate 1.544 Mbit/s Specifications
Refer to Table A-26 for data rate specifications.
Table A-24. RX Data Rate 1.544 Mbit/s
Parameter Specification
Data Rate
1.544 Mbit/s,
±
30 ppm
Line Coding B8ZS and AMI at 1.544 Mbit/s
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.
A.6.4.2 Receive Data Rate 2.048 Mbit/s Specifications
Refer to Table A-25 for data rate specifications.
Table A-25. RX Data Rate 2.048 Mbit/s
Parameter Specification
Data Rate
1.544 Mbit/s,
±
30 ppm
Line Coding B8ZS and AMI at 2.048 Mbit/s
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.